SEC Form 3 
FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940 	  
OMB APPROVAL
OMB Number:	3235-0104	
Estimated average burden	
hours per response:	0.5	

	
1. Name and Address of Reporting Person*
CHUNG PETER Y	

(Last)	(First)	(Middle)	
C/O SUMMIT PARTNERS 222 BERKELEY STREET	
18TH FLOOR	

(Street) 
BOSTON	MA	02116	

(City)	(State)	(Zip)	
	2. Date of Event Requiring Statement (Month/Day/Year)
12/14/2017 	3. Issuer Name and Ticker or Trading Symbol 
Casa Systems Inc [ CASA ] 		
		4. Relationship of Reporting Person(s) to Issuer 
(Check all applicable) 
	Director	X	10% Owner	
	Officer (give title below)		Other (specify below)	
	
	5. If Amendment, Date of Original Filed (Month/Day/Year)				
			6. Individual or Joint/Group Filing (Check Applicable Line) 
	Form filed by One Reporting Person	
X	Form filed by More than One Reporting Person	
	
Table I - Non-Derivative Securities Beneficially Owned	
1. Title of Security (Instr. 4) 	2. Amount of Securities Beneficially Owned (Instr. 4) 	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 	4. Nature of Indirect Beneficial Ownership (Instr. 5) 	
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities) 	
1. Title of Derivative Security (Instr. 4) 	2. Date Exercisable and Expiration Date (Month/Day/Year)	3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 	4. Conversion or Exercise Price of Derivative Security 	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 	6. Nature of Indirect Beneficial Ownership (Instr. 5) 	
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares				
Series C Convertible Prefered Stock	(1) 	(1) 	Common Stock	38,592,000(2) 	(1)	I	See Footnotes.(3)(4) 	
1. Name and Address of Reporting Person*
CHUNG PETER Y	

(Last)	(First)	(Middle)	
C/O SUMMIT PARTNERS 222 BERKELEY STREET	
18TH FLOOR	

(Street) 
BOSTON	MA	02116	

(City)	(State)	(Zip)	
	
1. Name and Address of Reporting Person*
MANNION MARTIN J	

(Last)	(First)	(Middle)	
C/O SUMMIT PARTNERS 222 BERKELEY STREET	
18TH FLOOR	

(Street) 
BOSTON	MA	02116	

(City)	(State)	(Zip)	
	
Explanation of Responses:	
1. The Series C Convertible Preferred Stock is convertible into common stock of Casa Systems, Inc. (the "Issuer") on a ten-for-one basis at any time without payment of consideration and will automatically convert into common stock upon the closing of the Issuer's initial public offering. The Series C Convertible Preferred Stock has no expiration date.	
2. Consists of 24,052,910 shares of common stock issuable upon the conversion of Series C Convertible Preferred Stock held by Summit Partners Private Equity Fund VII-A, L.P., 14,446,570 shares of common stock issuable upon the conversion of Series C Convertible Preferred Stock held by Summit Partners Private Equity Fund VII-B, L.P., 82,110 shares of common stock issuable upon the conversion of Series C Convertible Preferred Stock held by Summit Investors I, LLC and 10,410 shares of common stock issuable upon the conversion of Series C Convertible Preferred Stock held by Summit Investors I (UK), L.P.	
3. Summit Partners, L.P. is the managing member of Summit Partners PE VII, LLC, which is the general partner of Summit Partners PE VII, L.P., which is the general partner of each of Summit Partners Private Equity Fund VII-A, L.P. and Summit Partners Private Equity Fund VII-B, L.P. Summit Master Company, LLC is the managing member of Summit Investors Management, LLC, which is the manager of Summit Investors I, LLC, and the general partner of Summit Investors I (UK), L.P. Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated investment decisions, including voting and dispositive power, to Summit Partners, L.P. and its investment committee responsible for voting and investment decisions with respect to the Issuer.	
4. Summit Partners, L.P., through a three-person investment committee responsible for voting and investment decisions with respect to the Issuer, currently comprised of Peter Y. Chung, Bruce R. Evans and Martin J. Mannion, has voting and dispositive power over the shares held by each of these entities and therefore may be deemed to beneficially own such shares. Each of the Summit entities and persons mentioned in this footnote disclaims beneficial ownership of the shares, except for those shares held of record by such entity, and except to the extent of their pecuniary interest therein.	
Remarks:	
Exhibit 24.1 Powers of Attorney	
	/s/ Robin W. Devereux, Power of Attorney for Peter Y. Chung	12/14/2017	
	/s/ Robin W. Devereux, Power of Attorney for Martin J. Mannion	12/14/2017	
	** Signature of Reporting Person	Date	
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.	
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).	
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).	
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.	
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.	
POWER OF ATTORNEY
 
KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below hereby constitutes and appoints Robin W. Devereux his or her true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him or her and in his or her name, place and stead, in any and all capacities (until revoked in writing) to sign any and all instruments, certificates and documents required to be executed on behalf of himself or herself individually or on behalf of each of any affiliate of Summit Partners, L.P. that is not a portfolio company, including without limitation those entities listed on the attached Exhibit A, on matters relating to:
 
(a)   Sections 13 and 16 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), Rule 144 promulgated under the Securities Act of 1933, as amended (the “33 Act”) and any and all regulations promulgated thereunder,  including filings with the Securities and Exchange Commission pursuant thereto;
 
(b)   any written ballot or proxy with respect to any investment securities owned beneficially or of record by any such entities;
 
(c)   such filings required pursuant to the Internal Revenue Code of 1986, as amended, and any related regulations, pertaining to such entities
 
(d)   economic exhibits relating to such entities; and
 
(e)   the PATRIOT Act.
 
and to file the same, with all exhibits thereto, and any other documents in connection therewith, with, as applicable, (i) the Securities and Exchange Commission, and with any other entity when and if such is mandated by the Exchange Act or by the By-laws of the National Association of Securities Dealers, and/or (ii) the Internal Revenue Service, granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite and necessary fully to all intents and purposes as he or she might or could do in person thereby ratifying and confirming all that said attorney-in-fact and agent, or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof. Said attorney-in-fact is entitled to amend Exhibit A from time to time to reflect additional affiliates of Summit Partners, L.P. that are not portfolio companies.
 
The undersigned hereby acknowledges that this Power of Attorney supercedes, revokes and terminates any power of attorney executed by the undersigned prior to the date hereof for the purposes listed above.
 
[Exhibit A and Signature Pages Follow]

 
Power of Attorney
 
Exhibit A

Summit Ventures II, L.P.	 	Stamps, Woodsum & Co.	
Summit Ventures III, L.P.	 	Stamps, Woodsum & Co. II	
Summit Ventures IV, L.P.	 	Stamps, Woodsum & Co. III	
Summit Ventures V, L.P.	 	Stamps, Woodsum &Co. IV	
Summit V Companion Fund, L.P.	 	Summit Partners II, L.P.	
Summit V Advisors Fund, L.P.	 	Summit Partners III, L.P.	
Summit V Advisors Fund QP, L.P.	 	Summit Partners IV, L.P.	
Summit Subordinated Debt Fund, L.P.	 	Summit Partners V, L.P.	
Summit Subordinated Debt Fund II, L.P.	 	Summit Partners LLC	
Summit Subordinated Debt Fund III-A, L.P.	 	Summit Partners SD, L.P.	
Summit Subordinated Debt Fund III-B, L.P.	 	Summit Partners SD II, LLC	
Summit Accelerator Fund, L.P.	 	Summit Partners SD III, L.P.	
SV Eurofund, C.V.	 	Summit Partners SD III, LLC	
Summit Ventures VI-A, L.P.	 	Summit Partners VI (GP), L.P.	
Summit Ventures VI-B, L.P.	 	Summit Partners VI (GP), LLC	
Summit VI Entrepreneurs Fund L.P.	 	Summit Partners VC II LP	
Summit VI Advisors Fund, L.P.	 	Summit Partners VC II LLC	
Summit Founders’ Fund, L.P.	 	Summit Partners VC III LP	
Summit Founders’ Fund II, L.P.	 	Summit Partners VC III LLC	
Summit Accelerator Founders’ Fund, L.P.	 	Summit Partners PE VII LP	
Summit Partners Private Equity Fund VII-A, L.P	 	Summit Partners PE VII LLC	
Summit Partners Private Equity Fund VII-B, L.P	 	Summit Partners GE VIII LP	
Summit Partners Venture Capital Fund II-A, L.P.	 	Summit Partners GE VIII LLC	
Summit Partners Venture Capital Fund II-B, L.P.	 	Summit Partners SD IV, LP	
Summit Partners Subordinated Debt Fund IV-A, LP	 	Summit Partners SD IV, LLC	
Summit Partners Subordinated Debt Fund IV-B, LP	 	Summit Partners Europe, LP	
Summit Partners Europe Private Equity Fund, LP	 	Summit Partners Europe, Ltd.	
Summit Partners Growth Equity Fund VIII-A, LP	 	Summit Investors Management, LLC  	
Summit Partners Growth Equity Fund VIII-B, LP	 	SV International	
Summit Partners Venture Capital Fund III-A, LP	 	Summit Accelerator Partners, LLC	
Summit Partners Venture Capital Fund III-B, LP	 	Summit Accelerator Management, LLC	
Summit Partners Entrepreneur Advisors Fund I, L.P.	 	SWC Holdings Co.	
Summit Partners Growth Equity Fund IX-A, L.P.	 	Summit Retained Earnings LP	
Summit Partners Growth Equity Fund IX-B, L.P.	 	Summit Partners FF Corp	
Summit Partners Venture Capital Fund IV-A, LP	 	S-K Investment Corp	
Summit Partners Venture Capital Fund IV-B, LP	 	Summit Partners Blocker, Inc.	
Summit Partners Entrepreneur Advisors Fund II LP	 	Summit Partners Holdings, L.P.	
Summit Partners Growth Equity Fund VIII-B AIV, LP	 	Summit Partners Entrepreneur Advisors GP, LLC	
Summit Partners Growth Equity Fund VIII-A AIV, LP	 	Summit Partners GE IX LP	

 
Summit Partners Growth Equity Fund IX-A, AIV L.P.	 	Summit Partners GE IX LLC	
Summit Partners Growth Equity Fund IX-B, AIV L.P.	 	Summit Partners VC IV LP	
Summit Investors, L.P.	 	Summit Partners VC IV LLC	
Summit Investors II, L.P.	 	Summit Partners Entrepreneur Advisors GP II LLC	
Summit Investors III, L.P.	 	Summit Partners GE VIII AIV, LP	
Summit Investors (SAF) IV, L.P.	 	Summit Partners GE VIII AIV, Ltd	
Summit Investors VI, L.P.	 	Summit Partners GE IX AIV LP	
Summit Investors I, LLC	 	Summit Partners GE IX AIV Ltd.	
Summit Investors I (UK), L.P.	 	Summit Alydar, L.P.	
Summit Investors Credit II (UK), L.P.	 	Summit Partners Alydar GP LLC	
Summit Investors Credit II, LLC	 	Summit Partners Alydar GP LP	
Summit Investors GE IX-VC IV UK, L.P.	 	Summit Partners Alydar Holdings, LP	
Summit Investors GE IX-VC IV, LLC	 	Summit Partners Public Asset Management LLC	
Summit Partners Entrpreneurs/Advisors	 	Summit Partners Concentrated Growth L/S Fund Limited	
Summit Incentive Plan, L.P.	 	Summit Partners Concentrated Growth L/S Fund LP	
Summit Incentive Plan II, L.P.	 	Summit Partners Concentrated Growth L/S QP Fund LP	
S-K Investment Corp	 	Summit Partners Sustainable Opportunites L/S Fund Limited	
Summit Investment Holdings Trust	 	Summit Partners Sustainable Opportunites L/S QP Fund LP	
Summit Investors Holdings Trust	 	Summit Partners Sustainable Opportunities L/S Fund LP	
Summit Investment Holdings Trust II	 	Summit Accelerator Management, LP	
Shearson Summit Management Partners	 	Summit Accelerator Partners, LP	
HKL I Partners	 	Summit Partners, L.P.	
HKL I, LLC	 	Summit Master Company LLC	
Summit/Meditech LLC	 	SW Management Corp	
Summit/CAM Holdings, LLC	 	Summit UK Advisory LLC	
Summit/Sun Holdings LLC	 	Summit Partners, LLP (fka Summit Partners Ltd)	
Summit GCA Holdings LLC	 	Summit Partners UK Advisory LLP	
Summit Partners, LP Savings and Investment Plan	 	Mt. Everest Fund, L.P.	
Summit Partners, LP Profit Sharing Plan and Trust	 	Mt. Everest QP Fund, L.P.	
SD II Bennington Blocker Corp	 	Greenberg-Summit Management , LLC	
SV VI-B Bennington Blocker Corp	 	Greenberg- Summit Partners, LLC	
SD II Eyeglass Blocker Corp	 	SV VI-B CAM Holdings, L.P.	
SV VI -B Eyeglass Preferred Blocker	 	Summit Ventures VI-B HCP, LP	
SV VI -B Eyeglass Common Blocker	 	SV VI-B Tivoli Holdings, LP	
SV VI-B Commnet Common Blocker Corp.	 	SD III-B Tivoli Holdings, LP	
SV VI-B Commnet Preferred Blocker Corp.	 	SD II Eyeglass Holdings LP	
SV VI B Tippmann Preferred Blocker Corp.	 	SV VI-B Eyeglass Holdings LP	
SV VI B Tippmann Common Blocker Corp.	 	SV VI-B Bennington Holdings LP	
SD III-B Tippmann Blocker Corp	 	SV VI-B Commnet Holdings, L.P.	
SV VI-B Tivoli Blocker Corp.	 	SV VI-B Tippmann Holdings. L.P.	
SD III-B Tivoli Blocker Corp.	 	SV VI Tippmann Holdings. L.P.	
SV VI-B CAM Blocker Corp	 	SD III-B Tippmann Holdings, L.P.	
Summit Ventures VI-B HCP Blocker Corp	 	SV VI-B CD Holdings, L.P.	
SV VI-B CD Blocker Corp.	 	SV VI-B Focus Holdings, L.P	
SPPE VII-B CD Blocker Corp.	 	SDIII-B Focus Holdings, L.P	
Sparta Holding Corporation	 	SV VI-B Aurora Holdings LP	
SV VI-B Focus Blocker, LLC	 	SPPE VII-B Aurora Holdings, L.P.	

 
SDIII-B Focus Blocker, LLC	 	SV VI-B LiteCure, L.P.	
SV VI-B Aurora Blocker Corp.	 	SD III-B Nomacorc Holdings L.P.	
SPPE VII-B Aurora Blocker Corp.	 	SP PE VII-B Nomacorc Holdings LP	
SPVCII-B Anesthetix Blocker Corp	 	SD III-B TUI Holdings LP	
SV VI-B LiteCure Blocker Corp.	 	SPPE VII-B TUI Holdings LP	
SPPE VII-B Champion Blocker Corp	 	SP PE VII-B AFCV Holdings LP	
SD III-B Nomacorc Blocker Corp	 	SP VC II-B TMFS Holdings, LP	
SPPE VII-B Nomacorc Blocker Corp	 	SPPE VII-B SUN Holdings, LP	
SPVCII-B LiveOffice Blocker Corp	 	SP PE VII-B VIP Holdings, L.P.	
SPPE VII-B SUN Blocker Corp	 	SP PE VII-B Heald Holdings, L.P.	
SD III-B TUI Blocker Corp	 	SD III-B Heald Holdings, L.P.	
SPPE VII-B TUI Blocker Corp	 	SD III-B Salient Holdings, L.P.	
SP PE VII-B Announce Blocker LLC	 	SP PE VII-B Salient Holdings, L.P.	
SP VC II-B TMFS Blocker Corp	 	SPVC II-B Winshuttle Holdings, LP	
SP PE VII-B VIP Blocker Corp	 	SPVC II-B My Dentist Holdings, LP	
SD III-B Heald Holdings Corp	 	SPVC II-B Hiperos Holdings LP	
SP PE VII-B Heald Holdings Corp	 	SPVC II-B Clearwater Analytics Holdings LP	
SD III-B Salient Blocker Corp	 	SP SD IV-B Announce Holdings, LP	
SP PE VII-B Salient Blocker Corp	 	SPSD IV-B Access Holdings, LP	
SP SD IV-B Salient Blocker Corp	 	SPPE VII-B Access Holdings, LP	
SPVC II-B Winshuttle Blocker Corp	 	SPSD IV-B SSEC Holdings, LP	
SPVC II-B My Dentist Blocker Corp	 	SPPE VII-B SSEC Holdings, LP	
SV VI-B HCP Blocker Corp	 	SP PE VII-B Zenith Holdings, L.P	
SPVC II-B Clearwater Analytics Blocker Corp	 	SP SD IV-B Zenith Holdings, L.P	
SPVC II-B Hiperos Blocker Corp	 	SPPE VII-B CRG Holdings, L.P	
SP SD IV-B Announce Blocker LLC	 	SP VC II-B WMS Holdings, L.P	
SP SD IV-B Access Blocker Corp	 	SPSD IV-B Progressive Holdings, LP	
SPPE VII-B Access Blocker Corp	 	SPVC II-B Efreightsolutions Holdings LLC	
SPPE VII-B SSEC Blocker Corp	 	SP GE VIII-B Access Holdings, L.P.	
SPSD IV-B SSEC Blocker Corp	 	SP SD IV-B RC Holdings, LP	
SPPE VII-A CDIH Holdings, Inc	 	SPVC III-B COMS Interactive Holdings, L.P	
SPPE VII-B CDIH Holdings, Inc	 	SP GE VIII-B CITYMD Holdings, LP	
SV VI-A CDIH Holdings, Inc	 	SPPE VII-B QSF Holdings, LP	
SV VI-B CDIH Holdings, Inc	 	SV VI-B QSF Holdings, LP	
SV VI Affiliates CDIH Holdings, Inc	 	SPGE VIII-B Parts Town Holdings, LP	
SP PE VII-B Zenith Blocker Corp	 	SPSD IV-B Parts Town Holdings LP	
SP SD IV-B Zenith Blocker Corp	 	SP SD IV-B Fronton Holdings LP	
SPPE VII-B CRG Blocker Corp	 	SP GE VIII-B Bluepearl Holdings LP	
SP VC II-B WMS Blocker Corp	 	SP GE VIII-B GD RV Holdings LP	
SPSD IV-B Progressive Blocker Corp	 	SPVC III-B AH Holdings LP	
SP GE VIII-B Progressive Blocker Corp	 	SPVC III-B Tsheets Holdings LP	
SPVC II-B Efreightsolutions I Blocker Corp	 	SPVC III-B Medop Holdings LP	
SPVC II-B Efreightsolutions II Blocker Corp	 	SP GE VIII-B HCA Holdings LP	
SP GE VIII-B Access Blocker Corp	 	SP GE VIII-B MPAS Holdings LP	
SPVC III-B Heart to Heart Blocker Corp	 	SP GE VIII-B Pharm Holdings LP	
SP GE VIII-B RC Blocker Corp	 	SD IV/Co-Invs Pharm Blocker Corp	
SPSD IV-B RC Blocker Corp	 	SP GE VIII-B Thrive Holdings LP	
SPVC III-B COMS Interactive Blocker Corp.	 	SP GE VIII-B HealthSun Holdings LP	

 
SP GE VIII-B CITYMD Blocker Corp	 	Summit Partners Credit GP LP	
SPPE VII-B QSF Holdings Blocker Corp	 	Summit Partners Credit LP	
SV VI-B QSF Holdings Blocker Corp	 	Summit Partners Credit Advisors LP	
SPGE VIII-B Parts Town Blocker Corp	 	Summit Partners Credit GP LLC	
SPSD IV-B Parts Town Blocker Corp	 	Summit Partners Credit Offshore Fund, LP	
SP SD IV-B Fronton Blocker Corp	 	Summit Partners Credit Fund, LP	
SP GE VIII-B Bluepearl Blocker Corp	 	Summit Partners Credit Offshore Intermediate Fund, LP	
SP GE VIII-B GD RV Blocker Corp	 	Summit Partners Credit Master, LP	
SP COF I Theorem Blocker Corp	 	Summit Partners Credit Fund A-1 LP	
SP SD III-A TUI Holdings Corp	 	Summit Partners Credit A-1 GP LP	
SP PE VII-A TUI HOLDINGS CORP	 	Summit Partners Credit A-1 GP LLC	
SPVC III-B AH Blocker Corp	 	Summit Credit Funding LLC	
SPVC III-B Tsheets Blocker Corp	 	Summit Whistler Funding II LLC	
SPVC III-B Medop Blocker Corp	 	Summit Whistler Funding Inc.	
SP COF II Natchez Blocker Corp	 	Summit Partners Credit II, LP	
SP GE VIII-B HCA Blocker Corp	 	Summit Partners Credit II LLC	
SP GE VIII-B MPAS Blocker Corp	 	Summit Partners Credit Offshore Intermediate Fund II, LP	
SP GE VIII-B Pharm Blocker Corp	 	Summit Partners Credit Offshore Fund II, LP	
SP GE VIII-B Thrive Blocker Corp	 	Summit Partners Credit A-2 LLC	
SPGE IX-B HealthSun Blocker Corp	 	Summit Partners Credit Fund II, LP	
SPGE VIII-B HealthSun Blocker Corp	 	Summit Partners Credit A-2 LP	
SPGE IX-B Thrive Blocker Corp	 	Summit Partners Credit Fund B-2, LP	
Summit Partners Sarl	 	Summit Partners Credit B-2, LP	
Summit Partners Holding GmBh	 	Summit Partners Credit III LLC	
Summit Partners II Sarl	 	Summit Partners Credit III LP	
Summit Beteiligungs GmbH	 	Lovett-Woodsum 1998 CGC TR	
Summit Verwaltings GMBH	 	Stamps 1998 CGC Trust	
Summit GmbH & Co. Beteiligungs KG	 	ABC Funding, LLC	
Summit Parners III Sarl	 	Summit-Trio, LLC	
IGEFI Holdings, LP/ fka Summit Partners IV Sarl	 	Fronton Holdings, LLC	
IGEFI Licensing Sarl	 	Fronton Investor Holdings, LLC	
IGEFI France Sarl	 	Outcomes Holdings, Inc	
Finch Software Ltd	 	TUI CEO Holdings Corp	
Finch Software India PVT Ltd.	 	FL Hawk Holdings LLC	
IGEFI Deutschland GmbH	 	FL Hawk Intermiade Holdings Inc	
IGEFI U.K. Limited	 	Elevate Morphe Holdings Inc	
IGEFI US LLC	 	Morphe Holdings LLC	
Summit Partners V Sarl	 	Healthline Holdings Inc.	
Summit Partners VI-A Sarl	 	Healthline Intermediate Holdings	
Summit Partners VI-B Sarl	 	HSYSTEMS ACQUISITION TWO INC	
Summit Partners VI-A France	 	HSYSTEMS ACQUISITION ONE INC	
Summit Partners VI-B France	 	HSYSTEMS TOP HOLDINGS INC	
Summit Partners VII-A Sarl	 	HSYSTEMS HOLDINGS INC	
Summit Partners VII-B Sarl	 	HSYSTEMS HOLDINGS LLC	
Summit Partners VIII Sarl	 	Butler Merger Sub II Inc	
Summit Partners TLK-A Sarl	 	Butler Holdco II Inc	
Summit Partners TLK-B Sarl	 	Summit Partners Entrepreneur	

 
Summit Partners FMT Sarl	 	Butler Holdco Inc	
Summit Partners WRI Sarl	 	Butler Merge Sub I Inc	
Summit Partners PWS Sarl	 	Butler Group Holdings Inc	
Summit Partners OGN LUXCO SCA	 	Sumpro Investment Advisory PVT LTD	
Ogone SPRL       (fka Ogone SA)	 	BigPoint Manager SARL	
Ogone SAS	 	BigPoint Manager Investments SCA	
Ogone BV	 	BigPoint Distribuicao De Entretenimento Online Ltda	
Ogone GmbH (Germany)	 	Bigpoint International Holdco Ltd	
Ogone GmbH (Austria)	 	Bigpoint International Services Ltd	
Ogone GmbH (SW)	 	Bigpoint Midco GMBH	
Ogone Limited	 	Bigpoint Investments GMBH	
Summit Partners JMB S.á.r.l	 	Summit RKT VII-B Cayman Ltd	
Summit Partners WRI S.á.r.l	 	Summit RKT VII-B, LP	
Summit Partners SFB S.á.r.l	 	Summit Partners 360 Sarl FKA Summit Partners IX Sarl	
Summit Partners DDN S.á.r.l	 	Summit Partners 360 Cayman LP	
Summit Partners VP- A, S.à r.l.	 	First Midco Ltd	
Summit Partners VP- B, S.à r.l.	 	IVH Lux Holdings 1 SARL	
Summit Partners VI A SAS (French-co)	 	Masternaut Luxembourg Holdings Sarl	
Summit Partners VI B SAS (French-co)	 	Summit Partners Relex SARL	
Summit Partners WT- A, S.à r.l.	 	Summit Partners SGN Sarl	
Summit Partners WT-B, S.à r.l.	 	Summit Partners SMP Sarl	
Summit Partners FMT, S.à r.l.	 	Summit Partners SPT Sarl	
Summit Partners TLK-A, S.à r.l.	 	Summit Partners SZN Sarl	
Summit Partners TLK-B, S.à r.l.	 	Summit Partners (GGV) Sarl	
Summit Partners OGN (LUXCO) SCA	 	Summit Partners (GGV o/s) Sarl	
Summit Partners India Private Investments I	 	Summit Partners Europe CLYP Sàrl 	
Summit Partners India Holdco Investors	 	Summit Partners GE VIII-B CLYP Sàrl	
Summit Partners India Holdco, LP	 	Summit Partners GE VIII/Co-Inv CLYP Sàrl	
Summit Partners India Venture Capital Investments	 	Calypso Group Lux SCA	
Summit Partners AVT Cooperatief U.A	 	Calypso Lux GP Sarl	
Summit Partners AVT, LLC	 	Calypso Manco Sarl	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 27 day of August, 2008.
 
/s/ Gregory M. Avis	 	
Gregory M. Avis	 	
 
State of California                                          )
 
)      ss:
 
County of San Mateo                                    )
 
On this 27 day of August, 2008, before me personally came Gregory M. Avis, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ Lisa Franco	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 24 day of October, 2013.
 
/s/ Darren M. Black	 	
Darren M. Black	 	
 
Commonwealth of Massachusetts              )
 
)      ss:
 
County of Suffolk                                           )
 
On this 24 day of October 2013, before me personally came Darren M. Black, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ Meredith C. Twigg	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 15 day of September, 2008.
 
/s/ John R. Carroll	 	
John R. Carroll	 	
 
Commonwealth of Massachusetts              )
 
)      ss:
 
County of Suffolk                                           )
 
On this 15 day of September 2008, before me personally came John R. Carroll, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ Peter Danbridge	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 18 day of August, 2008.
 
/s/ Peter Y. Chung	 	
Peter Y. Chung	 	
 
State of California                                          )
 
)      ss:
 
County of San Mateo                                    )
 
On this 18 day of August, 2008, before me personally came Peter Y. Chung, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ Elisa Leonhardt	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 5 day of September, 2008.
 
/s/ Scott C. Collins	 	
Scott C. Collins	 	
 
Kingdom of England                                      )
 
)      ss:
 
City of London                                                )
 
On this 5 day of September, 2008, before me personally came Scott C. Collins, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ Edward Gardiner	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 15 day of September, 2008.
 
/s/ Christopher J. Dean	 	
Christopher J. Dean	 	
 
Commonwealth of Massachusetts              )
 
)      ss:
 
County of Suffolk                                           )
 
On this 15 day of September, 2008, before me personally came Christopher J. Dean, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ Peter Danbridge	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 12 day of September, 2011.
 
/s/ Mark A. deLaar	 	
Mark A. deLaar	 	
 
Commonwealth of Massachusetts              )
 
)      ss:
 
Country of Suffolk                                         )
 
On this 12 day of September, 2011, before me personally came Mark A. deLaar, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ Peter Danbridge	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 15 day of September, 2008.
 
/s/ Bruce R. Evans	 	
Bruce R. Evans	 	
 
Commonwealth of Massachusetts              )
 
)      ss:
 
County of Suffolk                                           )
 
On this 15 day of September, 2008, before me personally came Bruce R. Evans, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ Peter Danbridge	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 18 day of August, 2008.
 
/s/ Charles J. Fitzgerald	 	
Charles J. Fitzgerald	 	
 
State of California                                          )
 
)      ss:
 
County of San Mateo                                    )
 
On this 18 day of August, 2008, before me personally came Charles J. Fitzgerald, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ Elisa Leonhardt	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 21 day of August, 2008.
 
Craig D. Frances	 	
Craig D. Frances	 	
 
State of California                                          )
 
)      ss:
 
County of San Mateo                                    )
 
On this 21 day of August, 2008, before me personally came Craig D. Frances, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ Elisa Leonhardt	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 7 day of September, 2011.
 
/s/ Greg S. Goldfarb	 	
Greg S. Goldfarb	 	
 
Commonwealth of California                      )
 
)      ss:
 
Country of San Mateo                                   )
 
On this 7 day of September, 2011, before me personally came Greg S. Goldfarb, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ Lisa Marie Del Ben	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 15 day of September, 2008.
 
/s/ Thomas H. Jennings	 	
Thomas H. Jennings	 	
 
Commonwealth of Massachusetts              )
 
)      ss:
 
County of Suffolk                                           )
 
On this 15 day of September 2008, before me personally came Thomas H. Jennings, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ Peter Danbridge	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 18 day of August, 2008.
 
Walter G. Kortshak	 	
Walter G. Kortschak	 	
 
State of California                                          )
 
)      ss:
 
County of San Mateo                                    )
 
On this 18 day of August, 2008, before me personally came Walter G. Kortschak, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ Elisa Leonhardt	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 15 day of September, 2008.
 
/s/ Martin J. Mannion	 	
Martin J. Mannion	 	
 
Commonwealth of Massachusetts              )
 
)      ss:
 
County of Suffolk                                           )
 
On this 15 day of September, 2008, before me personally came Martin J. Mannion, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ Peter Danbridge	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 12 day of August, 2008.
 
/s/ Harrison B. Miller	 	
Harrison B. Miller	 	
 
State of California                                          )
 
)      ss:
 
County of San Mateo                                    )
 
On this 12 day of August, 2008, before me personally came Harrison B. Miller, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ Lisa Franco	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 15 day of September, 2008.
 
/s/ Kevin P. Mohan	 	
Kevin P. Mohan	 	
 
Commonwealth of Massachusetts              )
 
)      ss:
 
County of Suffolk                                           )
 
On this 15 day of September, 2008, before me personally came Kevin P. Mohan, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ Peter Danbridge	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 10 day of September, 2015.
 
/s/ Jay D. Pauley	 	
Jay D. Pauley	 	
 
Commonwealth of Massachusetts              )
 
)      ss:
 
County of Suffolk                                           )
 
On this 10 day of September, 2015, before me personally came Jay D. Pauley, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ Theresa Han Choe	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 15 day of September, 2008.
 
/s/ Thomas S. Roberts	 	
Thomas S. Roberts	 	
 
Commonwealth of Massachusetts              )
 
)      ss:
 
County of Suffolk                                           )
 
On this 15 day of September, 2008, before me personally came Thomas S. Roberts, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ Peter Danbridge	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 21 day of May, 2012.
 
/s/ Han K. Sikkens	 	
Han K. Sikkens	 	
 
Kingdom of England                                      )
 
)      ss:
 
City of London                                                )
 
On this 23 day of May, 2012, before me personally came Johannes Kornelis Jan. Sikkens, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ J. B. Burgess	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 10 day of September, 2008.
 
/s/ E. Roe Stamps	 	
E. Roe Stamps	 	
 
State of Florida                                                )
 
)      ss:
 
County of Monroe                                          )
 
On this 10 day of September, 2008, before me personally came E. Roe Stamps, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ Joanne Muniz	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 21 day of May, 2012.
 
/s/ Christian R. Strain	 	
Christian R. Strain	 	
 
Kingdom of England                                      )
 
)      ss:
 
City of London                                                )
 
On this 23 day of May, 2012, before me personally came Christian Raymond Strain, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ J. B. Burgess	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 7 day of September, 2011.
 
/s/ Alexander D. Whittemore	 	
Alexander D. Whittemore	 	
 
Commonwealth of Massachusetts              )
 
)      ss:
 
Country of Suffolk                                         )
 
On this 7 day of September, 2011, before me personally came Alexander D. Whittemore, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ Peter Danbridge	 	
Notary Public	 	

 
 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 15 day of September, 2008.
 
/s/ Stephen G. Woodsum	 	
Stephen G. Woodsum	 	
 
Commonwealth of Massachusetts              )
 
)      ss:
 
Country of Suffolk                                         )
 
On this 15 day of September, 2008, before me personally came Stephen G. Woodsum, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ Peter Danbridge	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 19 day of May 2016.
 
/s/ Matthias G. Allgaier	 	
Matthias G. Allgaier	 	
 
Kingdom of England                                      )
 
)      ss:
 
City of London                                                )
 
On this 19th day of May 2016, before me personally came Matthias G. Allgaier, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ Kelli L. Flanagan	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 19th  day of  January   , 2016.
 
/s/ Peter L. Rottier	 	
Peter L. Rottier	 	
 
State of California                                          )
 
)      ss:
 
County of San Mateo                                    )
 
On this  19   day of  January      , 2016, before me personally came Peter L. Rottier, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/Elisa Leonhardt	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 2nd day of March, 2017.
 
/s/ Michael A. Medici	 	
Michael A. Medici	 	
 
Commonwealth of Massachusetts              )
 
)      ss:
 
County of Suffolk                                           )
 
On this 2nd day of March, 2017, before me personally came Michael A. Medici, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]
 
/s/ Meredith C. Twigg	 	
Notary Public	 	

 
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the _19th_ day of _January_, 2016.
 
/s/ Andrew J. Collins	 	
Andrew J. Collins	 	
 
State of California                                          )
 
)      ss:
 
County of San Mateo                                    )
 
On this  20th   day of   January  , 2016, before me personally came Andrew J. Collins, known to me to be the person described and who executed the foregoing instrument that he acknowledged and executed the same.
 
[Notary Seal]	 	
 	 	
/s/ Theresa Han	 	
Notary Public