Entity
Company
Location
200 Clarendon Street, Boston, Massachusetts
Signature
See signatures included in Exhibit 99.1
All insider transactions
Transactions in reports broken out by “transaction date” reported in original SEC filing, see here for transactions aggregated across transaction date

Holdings reported by Bain Capital Life Sciences Investors, LLC:

Stock Role Class Num Shares Value Price $ Report Date Ownership
SpringWorks Therapeutics, Inc. 10%+ Owner Common Stock 4.83 M $201 M $41.53 Aug 10, 2021 Indirect
NewAmsterdam Pharma Co N.V. 10%+ Owner Ordinary Shares 10.5 M $199 M $19.00 Dec 29, 2023 Indirect
Annexon, Inc. 10%+ Owner Common Stock 5.4 M $24.4 M $4.52 May 25, 2023 Indirect
Solid Biosciences Inc. Director, 10%+ Owner Common Stock 4.03 M $22.3 M $5.53 Jan 11, 2024 Indirect
RAPID MICRO BIOSYSTEMS, INC. 10%+ Owner Class A Common Stock 8.43 M $8.35 M $0.99 Jul 19, 2021 Indirect
Xilio Therapeutics, Inc. 10%+ Owner Common Stock 2.81 M $2.33 M $0.83 Dec 10, 2021 Indirect
SpringWorks Therapeutics, Inc. 10%+ Owner Common Stock 1.11 K $45.9 K $41.53 Aug 10, 2021 Direct
Kyverna Therapeutics, Inc. 10%+ Owner Common Stock 3.16 M Feb 12, 2024 Indirect
Kyverna Therapeutics, Inc. 10%+ Owner Series B Convertible Preferred Stock 0 Feb 12, 2024 Indirect
RAPID MICRO BIOSYSTEMS, INC. 10%+ Owner Series B1 Preferred Stock 0 Jul 19, 2021 Indirect
RAPID MICRO BIOSYSTEMS, INC. 10%+ Owner Series C1 Preferred Stock 0 Jul 19, 2021 Indirect

Insider Reports Filed by Bain Capital Life Sciences Investors, LLC

Symbol Company Period Transactions Value $ Form Type Date Filed Role
KYTX Kyverna Therapeutics, Inc. Feb 12, 2024 3 $9.9 M 4 Feb 14, 2024 10%+ Owner
KYTX Kyverna Therapeutics, Inc. Feb 7, 2024 0 $0 3 Feb 7, 2024 10%+ Owner
SLDB Solid Biosciences Inc. Jan 11, 2024 1 $5 M 4 Jan 12, 2024 Director, 10%+ Owner
NAMS NewAmsterdam Pharma Co N.V. Dec 29, 2023 0 $0 3 Dec 29, 2023 10%+ Owner
ANNX Annexon, Inc. May 25, 2023 0 $0 3 May 30, 2023 10%+ Owner
ANNX Annexon, Inc. May 25, 2023 1 $640 K 4 May 30, 2023 10%+ Owner
SLDB Solid Biosciences Inc. Dec 2, 2022 0 $0 3 Dec 5, 2022 10%+ Owner
XLO Xilio Therapeutics, Inc. Dec 8, 2021 4 $410 K 4 Dec 10, 2021 10%+ Owner
XLO Xilio Therapeutics, Inc. Oct 26, 2021 0 $0 3 Nov 5, 2021 10%+ Owner
SWTX SpringWorks Therapeutics, Inc. Aug 10, 2021 1 -$70.3 M 4 Aug 12, 2021 10%+ Owner
RPID RAPID MICRO BIOSYSTEMS, INC. Jul 19, 2021 5 $2 M 4 Jul 21, 2021 10%+ Owner
RPID RAPID MICRO BIOSYSTEMS, INC. Jul 14, 2021 0 $0 3 Jul 14, 2021 10%+ Owner