Public ownership evidence

Cullinan Therapeutics, Inc. Common Stock (CGEM) Ownership Disclosures

Read CGEM insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-10T12:08:28.848Z

Separate the three disclosure sources

Step 1 of 3

Recent Form 4 activity

Cullinan Therapeutics, Inc. Common Stock: source evidence dated 2026-10-10T12:08:28.848Z.

Available
2026-09-10
Trade date
2026-09-08
Reporting owners
Michaelson Jennifer
Code
S
Shares
8,000
Reported value
Not reported
What you should see

The displayed owner or issuer and source fields identify the receipt to verify; keep reporting and availability dates separate.

Step 2 of 3

Is this an insider transaction, 13F holding, or Congressional event?

Each source has different dates and units. Raw ticker-matched receipts, including amendments, are not deduplicated current ownership totals.

SEC 0001193125-26-387381
What you should see

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Step 3 of 3

Read CGEM fundamentals

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Read CGEM fundamentals
What you should see

Keep reporting dates and units beside the answer, and inspect its original citations.

Recent Form 4 activity

See the complete recent form 4 activity
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2026-09-102026-09-08Michaelson JenniferS8,000Not reported
2026-08-152026-08-13Michaelson JenniferS30,000Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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OPTIMIZE FINANCIAL INC.2026-06-302026-08-2828,061$510,991None
Corient Private Wealth LP2026-06-302026-08-2854,877$999,312None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2540,253$733,007None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25733,007$40,253,000None
Assenagon Asset Management S.A.2026-06-302026-08-2261,682$1,123,229None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-2021,922$399,200None
Corient Private Wealth LP2026-06-302026-08-1853,282$970,267None
SEI INVESTMENTS CO2026-06-302026-08-1513,446$244,852None
Federation des caisses Desjardins du Quebec2026-06-302026-08-15250$4,553None
Rafferty Asset Management, LLC2026-06-302026-08-1566,092$1,203,535None
Susquehanna Portfolio Strategies, LLC2026-06-302026-08-15233,842$4,258,263None
Basecamp Wealth Advisors LLC2026-06-302026-08-1514$255None
Quarry LP2026-06-302026-08-159,672$176,127None
Kynam Capital Management, LP2026-06-302026-08-153,114,132$56,708,344None
XTX Topco Ltd2026-06-302026-08-1576,965$1,401,533None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15464,034$8,450,059None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15464,034$8,450,059None
ExodusPoint Capital Management, LP2026-06-302026-08-1528,537$519,659None
Qube Research & Technologies Ltd2026-06-302026-08-1519,936$363,035None
OSAIC HOLDINGS, INC.2026-06-302026-08-159$164None
OSAIC HOLDINGS, INC.2026-06-302026-08-151,381$25,148None
Squarepoint Ops LLC2026-06-302026-08-15168,117$3,061,411None
Trexquant Investment LP2026-06-302026-08-15152,163$2,770,888None
MetLife Investment Management, LLC2026-06-302026-08-1535,746$650,935None
Engineers Gate Manager LP2026-06-302026-08-15153,050$2,787,041None
Birchview Capital, LP2026-06-302026-08-1520,000$364,200None
Venrock Adviser, LLC2026-06-302026-08-151,379,965$25,129,163None
JANE STREET GROUP, LLC2026-06-302026-08-1536,700$668,307Put
JANE STREET GROUP, LLC2026-06-302026-08-1527,900$508,059Call
BOOTHBAY FUND MANAGEMENT, LLC2026-06-302026-08-151,082,611$19,714,346None
Legal & General Group Plc2026-06-302026-08-1514,981$272,804None
Legal & General Group Plc2026-06-302026-08-156,624$120,623None
Legal & General Group Plc2026-06-302026-08-155,872$106,929None
RTW INVESTMENTS, LP2026-06-302026-08-152,364,347$43,054,759None
MOORE CAPITAL MANAGEMENT, LP2026-06-302026-08-15189,946$3,458,917None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1586,600$1,576,986Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1536,000$655,560Put
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1526,090$475,099None
PFM Health Sciences, LP2026-06-302026-08-15192,442$3,504,369None
Apis Capital Advisors, LLC2026-06-302026-08-1580,000$1,456,800None
Verdad Advisers, LP2026-06-302026-08-1528,987$527,853None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-1520,000$364,200Call
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-15346,232$6,304,885None
BOONE CAPITAL MANAGEMENT LLC2026-06-302026-08-15704,442$12,827,889None
TCG Crossover Management, LLC2026-06-302026-08-15406,786$7,407,573None
MPM BIOIMPACT LLC2026-06-302026-08-159,731,341$177,207,720None
Longaeva Partners L.P.2026-06-302026-08-1564,785$1,179,735None
GREAT POINT PARTNERS LLC2026-06-302026-08-15300,000$5,463,000None
ADAGE CAPITAL PARTNERS GP, L.L.C.2026-06-302026-08-15238,000$4,333,980None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-15105$1,912None

90-day public filing window, up to 50 source positions.

OPTIMIZE FINANCIAL INC. ↗Corient Private Wealth LP ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗Assenagon Asset Management S.A. ↗MERCER GLOBAL ADVISORS INC /ADV ↗Corient Private Wealth LP ↗SEI INVESTMENTS CO ↗Federation des caisses Desjardins du Quebec ↗Rafferty Asset Management, LLC ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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No records are available for this view.

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.

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