Investor Matrix Capital Management Company, LP
Manager David Goel
13D/G Filings

This page shows a list of all the recent 13D/G filings made by Matrix Capital Management Company, LP . Schedule 13D is commonly referred to as a “beneficial ownership report.” The term "beneficial owner" is defined under SEC rules. It includes any person who directly or indirectly shares voting power or investment power (the power to sell the security).

When a person or group of persons acquires beneficial ownership of more than 5% of a voting class of a company’s equity securities, they are required to file a Schedule 13D within ten days after the purchase. Click the link icon to see the full transaction history.

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Date Form Target Prev
Shares		 Current
Shares		 Change
(Percent)		 Ownership
(Percent)		 Change
(Percent)
2025-05-19 13D/A AURA / Aura Biosciences, Inc. 6,922,870 6,922,870
2025-05-14 13G MAZE / Maze Therapeutics, Inc. 2,486,184
2025-04-07 13G/A ALTR / Altair Engineering Inc. 12,430,000 0
2025-02-12 13G/A PRM / Perimeter Solutions, Inc. 8,587,500 6,554,000
2025-01-08 13G/A ADAP / Adaptimmune Therapeutics plc - Depositary Receipt (Common Stock) 0
2024-12-05 13G/A ADAP / Adaptimmune Therapeutics plc - Depositary Receipt (Common Stock) 226,089,090 135,000,000
2024-11-13 13G/A ALTR / Altair Engineering Inc. 12,233,174 12,430,000
2024-11-13 13G/A ADAP / Adaptimmune Therapeutics plc - Depositary Receipt (Common Stock) 233,845,110 226,089,090
2024-11-13 13G/A ADPT / Adaptive Biotechnologies Corporation 11,572,590 650,000
2024-02-13 13G/A ALTR / Altair Engineering Inc. 10,871,000 12,233,174
2023-11-09 13D/A AURA / Aura Biosciences, Inc. 6,922,870
2023-07-10 13G/A ADAP / Adaptimmune Therapeutics plc - Depositary Receipt (Common Stock) 233,845,110 233,845,110
2023-06-20 13D/A ZNTL / Zentalis Pharmaceuticals, Inc. 9,199,973 13,959,973
2023-02-13 13G/A NEWR / New Relic Inc 5,000,000 0
2023-02-13 13G/A ALTR / Altair Engineering Inc. 8,600,000 10,871,000
2023-02-13 13G/A FORG / ForgeRock Inc - Class A 1,000,000 0
2023-02-13 13G/A PRM / Perimeter Solutions, Inc. 12,462,500 8,587,500
2022-12-07 13D/A CZOO / Cazoo Group Ltd 4,112,870 5,362,870
2022-06-03 13D ZNTL / Zentalis Pharmaceuticals, Inc. 4,349,279 9,199,973
2022-02-18 13G/A NEWR / New Relic Inc 3,562,500 5,000,000
2022-02-14 13G/A ADPT / Adaptive Biotechnologies Corporation 13,115,090 11,572,590
2022-02-14 13G/A ALTR / Altair Engineering Inc. 5,155,025 8,600,000
2022-02-14 13G/A ZNTL / Zentalis Pharmaceuticals, Inc. 3,821,739 4,349,279
2022-02-14 13G PRM / Perimeter Solutions, Inc. 12,462,500
2022-02-14 13G/A NEWR / New Relic Inc 5,000,000 3,562,500
2022-02-14 13G FORG / ForgeRock Inc - Class A 1,000,000
2022-02-14 13G/A BIGC / Commerce.com, Inc. 3,403,708 0
2021-11-04 13D CZOO / Cazoo Group Ltd 4,112,870
2021-02-16 13G/A ADAP / Adaptimmune Therapeutics plc - Depositary Receipt (Common Stock) 168,000,000 233,845,110
2021-02-16 13G/A NEWR / New Relic Inc 1,175,000 5,000,000
2021-02-16 13G/A CARG / CarGurus, Inc. 5,391,048 0
2021-02-16 13G ZNTL / Zentalis Pharmaceuticals, Inc. 3,821,739
2021-02-16 13G/A ALTR / Altair Engineering Inc. 2,392,725 5,155,025
2021-02-16 13G/A ADPT / Adaptive Biotechnologies Corporation 17,332,191 13,115,090
2021-02-16 13G BIGC / Commerce.com, Inc. 3,403,708
2020-02-14 13G/A TRIL / Trillium Therapeutics Inc 2,288,560 0
2020-02-14 13G/A ADAP / Adaptimmune Therapeutics plc - Depositary Receipt (Common Stock) 162,894,000 168,000,000
2020-02-14 13G ADPT / Adaptive Biotechnologies Corporation 17,332,191
2020-02-14 13G ALTR / Altair Engineering Inc. 2,392,725
2020-02-14 13G/A CARG / CarGurus, Inc. 4,841,048 5,391,048
2019-02-14 13G CARG / CarGurus, Inc. 4,841,048
2019-02-14 13G/A TRIL / Trillium Therapeutics Inc 2,173,000 2,288,560
2019-02-14 13G DATA / Tableau Software, Inc. 0 3,825,000
2019-01-10 13G/A ADAP / Adaptimmune Therapeutics plc - Depositary Receipt (Common Stock) 122,172,066 162,894,000
2018-10-10 13G/A ADAP / Adaptimmune Therapeutics plc - Depositary Receipt (Common Stock) 73,281,066 122,172,066
2018-02-14 13G/A ADAP / Adaptimmune Therapeutics plc - Depositary Receipt (Common Stock) 72,261,066 73,281,066
2018-02-14 13G/A P / Pandora Media, Inc. 23,360,216 1,924,000
2018-02-14 13G/A NEWR / New Relic Inc 4,848,100 1,175,000
2017-12-08 13G TRIL / Trillium Therapeutics Inc 2,173,000
2017-09-11 13G ADAP / Adaptimmune Therapeutics plc - Depositary Receipt (Common Stock) 72,261,066
2017-02-10 13G P / Pandora Media, Inc. 23,360,216
2017-02-10 13G/A NEWR / New Relic Inc 3,248,100 4,848,100
2017-02-10 13G/A DATA / Tableau Software, Inc. 3,000,000 0
2016-02-16 13G NEWR / New Relic Inc 3,248,100
2016-02-16 13G/A DATA / Tableau Software, Inc. 3,000,000
2014-08-15 13G DATA / Tableau Software, Inc. 2,400,000
2013-04-18 13G/A CRI / Carter's, Inc. 1,475,000
2012-04-20 13G CRI / Carter's, Inc. 2,975,000