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CIK 0001789972 · Non-accelerated filer<br>Smaller reporting company

Cullinan Therapeutics, Inc.

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Ticker
CGEM
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
813879991
Phone
617-410-4650
Business address
ONE MAIN STREET, SUITE 1350, CAMBRIDGE, MA, 02142
Former names
Cullinan Oncology, Inc., Cullinan Management, Inc., Cullinan Oncology, LLC
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$222,000
in 2 filings, $222K under 10b5-1 plans

Net −$222,000. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. Michaelson Jennifer −$222K Chief Scientific Officer sold 7% of stake
Date Insider Transaction Shares Price Value Owned after
2026-11-05 Michaelson Jennifer Chief Scientific Officer Option exercise 10b5-1 +3,805 $4.30 $16K 162,649
2026-11-05 Michaelson Jennifer Chief Scientific Officer Sale 10b5-1 −4,000 $12.36 $49K 158,649
2026-11-05 Michaelson Jennifer Chief Scientific Officer Option exercise · Stock Option (Right to Buy) 10b5-1 −3,805 75,182
2026-09-08 Michaelson Jennifer Chief Scientific Officer Option exercise 10b5-1 +4,000 $4.30 $17K 166,844
2026-09-08 Michaelson Jennifer Chief Scientific Officer Sale 10b5-1 −8,000 $21.57 $173K 158,844
2026-09-08 Michaelson Jennifer Chief Scientific Officer Option exercise · Stock Option (Right to Buy) 10b5-1 −4,000 78,987
2026-08-13 Michaelson Jennifer Chief Scientific Officer Option exercise 10b5-1 +30,000 $4.30 $129K 192,844
2026-08-13 Michaelson Jennifer Chief Scientific Officer Sale 10b5-1 −30,000 $20.26 $608K 162,844
2026-08-13 Michaelson Jennifer Chief Scientific Officer Option exercise · Stock Option (Right to Buy) 10b5-1 −30,000 82,987
2026-07-06 Michaelson Jennifer Chief Scientific Officer Option exercise 10b5-1 +4,000 $4.30 $17K 170,844
2026-07-06 Michaelson Jennifer Chief Scientific Officer Sale 10b5-1 −8,000 $17.82 $143K 162,844
2026-07-06 Michaelson Jennifer Chief Scientific Officer Option exercise · Stock Option (Right to Buy) 10b5-1 −4,000 112,987
2026-06-30 SUMER JACQUELYN L Chief Legal Officer Grant or award +2,470 $8.60 $21K 130,559
2026-06-30 Fenton Mary Kay Chief Financial Officer Grant or award +1,541 $8.60 $13K 127,921
2026-06-16 Rosenberg Anthony Director Grant or award · Stock Option (Right to Buy) +25,319 25,319
2026-06-16 Meek David D. Director Grant or award · Stock Option (Right to Buy) +25,319 25,319
2026-06-16 Webster Stephen W Director Grant or award · Stock Option (Right to Buy) +25,319 25,319
2026-06-16 Allen Andrew R Director Grant or award · Stock Option (Right to Buy) +21,781 21,781
2026-06-16 Thistle Mary Director Grant or award · Stock Option (Right to Buy) +25,319 25,319
2026-06-16 Doyle Mittie Director Grant or award · Stock Option (Right to Buy) +21,781 21,781

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