SEC filingsOct 12, 2026 to Oct 19, 2026: insiders reported 840 purchases and sales across 212 companies.840 insider purchases and sales in 7 daysSee the filings →
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Company profile

CGEM

Cullinan Therapeutics, Inc.
NASDAQHealth Care

Latest close: 12.93 USD · Oct 16, 2026 · 1 year · split-adjusted

On the price, the facts of the public record■Insider buy□Insider sell●Results filed
With an account, also○dividends▲splits◌next earningswith an account

End-of-day prices provided by Twelve Data · One close per session; the series does not update during the trading day.

Latest on record

The most recent facts, as filed.

Up to three of the most recent, checkable facts already loaded on this page, each linked to its source.

  1. Oct 2, 2026Material event · 8-KFiled by the company itself.Open the filing ↗
  2. Sep 24, 2026Material event · 8-KFiled by the company itself.Open the filing ↗
  3. Sep 14, 2026Material event · 8-KFiled by the company itself.Open the filing ↗

In numbers

What this profile holds, counted.

Closes · 1 year250
SEC filings on record44416 flagged findings
Reported transactions (Form 4)80since May 15, 2024 · and 8 other holdings
Corporate events (8-K)20since May 21, 2021

What the record says

Description, identity and filings, each with its source.

Every block cites its source. The colour of a finding marks its category — which document, who filed it — not how much it matters.

SEC topics

Regulatory history

Topics detected in its SEC reports, with the original excerpt.

Each topic is assigned by a classifier over the full filing; the excerpts show where it was detected and are not always enough to verify it. Open the filing to read it in full.

  • 2026-05-07share offering or dilution eventrecentOpen filing ↗
    “…long-lived assets were located in the U.S. as of each of March 31, 2026 and 2025. There were no expenditures for long-lived…”
    +1 more passage from the same document
    • “…Agreement, we paid Genrix an upfront license fee of $20.0 million in June 2025. Refer to Note 5 of our notes to the consolidated…”

Original excerpts from SEC filings, untranslated. Not advice and not a prediction.

SEC record

SEC dossier

What this company has filed with the SEC, in plain language.

The 25 most recent filings (of 444)

Everything filed

Every SEC filing, newest first, with what it is. Below, each type with its own explanation.

  • Oct 2, 268-K ↗Current report · Communication to the market · Other events
  • Sep 24, 268-K ↗Current report · Communication to the market · Other events
  • Sep 14, 268-K ↗Current report · Communication to the market · Other events
  • Sep 10, 26Form 4 ↗Insider transaction
  • Sep 8, 26Form 144 ↗Notice of proposed sale
  • Aug 14, 26Form 4 ↗Insider transaction
  • Aug 14, 26SCHEDULE 13G/A ↗Passive stake · BVF PARTNERS L P/IL · 10.0% · event on Jun 30, 26 · amendment
  • Aug 14, 26SCHEDULE 13G ↗Passive stake · T. Rowe Price Associates, Inc. · 6.2% · event on Jun 30, 26
  • Aug 13, 26Form 144 ↗Notice of proposed sale
  • Aug 13, 268-K ↗Current report · Communication to the market · Other events
  • Aug 7, 26SCHEDULE 13G ↗Passive stake · STATE STREET CORPORATION · 6.0% · event on Jun 30, 26
  • Aug 6, 2610-Q ↗Quarterly report
  • Aug 6, 268-K ↗Current report · Results
  • Jul 7, 26Form 4 ↗Insider transaction
  • Jul 6, 26Form 144 ↗Notice of proposed sale
  • Insider transaction · 8 Form 4 filingsshow all 8hide
  • Jun 16, 268-K ↗Current report · Shareholder vote results
  • Jun 10, 268-K ↗Current report · Communication to the market · Other events

444 filings on record, the oldest from Dec 1, 20.

Listing the 25 most recent filings of the 444 on record.

8-Ks, explained

Structure11Governance9
  • Nov 21, 25StructureA material agreement was terminated8-K 1.02 ↗
  • Aug 7, 25GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
  • Jun 4, 25StructureEntered a material agreement+2 more in the same filing8-K 1.01 ↗
  • May 15, 24GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
  • Apr 29, 24GovernanceA senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
  • Apr 16, 24StructureEntered a material agreement+5 more in the same filing8-K 1.01 ↗
  • Jan 8, 24StructureCompleted an acquisition or disposal8-K 2.01 ↗
  • Jun 14, 23GovernanceA senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
  • Feb 14, 23StructureEntered a material agreement+3 more in the same filing8-K 1.01 ↗
  • Jan 19, 23StructureSold unregistered shares+2 more in the same filing8-K 3.02 ↗
  • Nov 2, 22GovernanceA senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
  • Structure3 material agreements entered2022show all 3hide
    • Oct 25, 22StructureEntered a material agreement+2 more in the same filing8-K 1.01 ↗
    • Jun 27, 22StructureEntered a material agreement+3 more in the same filing8-K 1.01 ↗
    • May 12, 22StructureEntered a material agreement+3 more in the same filing8-K 1.01 ↗

4 older filings not shown

Corporate events are tracked from 2004-08-23, when the SEC renumbered 8-K items. Earlier filings use an incompatible numbering and are not classified here.

Ownership and control

Schedule 13G: short-form filing

The short form, for holders who meet specific requirements: institutional investors, passive investors without a control purpose, or exempt investors. Asset managers and index funds usually file it.

  • Lynx1 Capital Management LP14.5%Oct 8, 25SCHEDULE 13G/A ↗2 co-filers on this document — the figure is the largest single stake, not their sum. · 2 earlier filings
  • BVF PARTNERS L P/IL10.0%Jun 30, 26SCHEDULE 13G/A ↗10 co-filers on this document — the figure is the largest single stake, not their sum. · 2 earlier filings
  • T. Rowe Price Associates, Inc.6.2%Jun 30, 26SCHEDULE 13G ↗
  • STATE STREET CORPORATION6.0%Jun 30, 26SCHEDULE 13G ↗
  • The Vanguard Group5.6%Dec 31, 25SCHEDULE 13G ↗1 earlier filing
show 3 more holdershide
  • Kynam Capital Management, LP5.3%Dec 31, 25SCHEDULE 13G ↗3 co-filers on this document — the figure is the largest single stake, not their sum.
  • Deerfield Mgmt, L.P.5.0%Sep 30, 25SCHEDULE 13G/A ↗4 co-filers on this document — the figure is the largest single stake, not their sum.
  • Kenneth Griffin3.4%Sep 30, 25SCHEDULE 13G/A ↗7 co-filers on this document — the figure is the largest single stake, not their sum. · 1 earlier filing

Structured 13D/G data starts 2023-12, when the SEC moved these filings to a machine-readable format. Earlier filings exist but are not parsed here.

Sale intention announced

On Sep 8, JENNIFER MICHAELSON filed notice of intent to sell up to $177K. That is about 0.01% of shares outstanding. It is filed under a scheduled plan (10b5-1), arranged in advance.

A notice is not a sale: it may not go ahead, may happen in part, or at a different price.

After the notice, they sold $173K on Sep 8, per their Form 4. That is 100% of the shares announced so far, and the window is still open.

View notice (Form 144) ↗+2 more recent notices · 2 with a later sale

SEC record

Insider transactions

Buys and sells reported by officers, directors and major shareholders on SEC Form 4.

Buys and sells

  • Sep 8, 26Sell$173KJennifer MichaelsonChief Scientific Officer↗
  • Aug 13, 26Sell$608KJennifer MichaelsonChief Scientific Officer↗
  • Jul 6, 26Sell$143KJennifer MichaelsonChief Scientific Officer↗
  • May 5, 26Sell$114KJennifer MichaelsonChief Scientific Officer↗
  • May 5, 26Sell$3KJennifer MichaelsonChief Scientific Officer↗
  • Mar 5, 26Sell$125KJennifer MichaelsonChief Scientific Officer↗
  • Feb 25, 26Sell$25KJennifer MichaelsonChief Scientific Officer↗
  • Feb 24, 26Sell$52KJACQUELYN L SUMERChief Legal Officer↗
  • Feb 24, 26Sell$66KJeffrey Alan JonesChief Medical Officer↗
  • Feb 24, 26Sell$196KNADIM AHMEDPresident and CEO↗
  • Feb 24, 26Sell$52KJennifer MichaelsonChief Scientific Officer↗
  • Feb 23, 26Sell$25KJennifer MichaelsonChief Scientific Officer↗

There are 17 more transactions in this stretch.

Stock compensation, tax and giftsshow the 11 other transactionshide

Stock compensation, tax withholding, option exercises and gifts. They are listed separately and are not included in the purchase and sale totals. The type describes the transaction, not the filer's intent.

  • Sep 8, 26Compensation$17KJennifer MichaelsonChief Scientific Officer↗
  • Aug 13, 26Compensation$129KJennifer MichaelsonChief Scientific Officer↗
  • Jul 6, 26Compensation$17KJennifer MichaelsonChief Scientific Officer↗
  • Jun 30, 26Compensation$13KMary Kay FentonChief Financial Officer↗
  • Jun 30, 26Compensation$21KJACQUELYN L SUMERChief Legal Officer↗
  • May 5, 26Compensation$17KJennifer MichaelsonChief Scientific Officer↗
  • Mar 5, 26Compensation$17KJennifer MichaelsonChief Scientific Officer↗
  • Feb 20, 26Compensation$34KJennifer MichaelsonChief Scientific Officer↗
  • Feb 18, 26Compensationamount n/aJennifer MichaelsonChief Scientific Officer↗
  • Feb 18, 26Compensationamount n/aMary Kay FentonChief Financial Officer↗
  • Dec 31, 25Compensation$175Mary Kay FentonChief Financial Officer↗

The full record holds 144 transactions and goes back to Dec 21, 21.

Its sector and its market

Cullinan Therapeutics, Inc. among Health Care companies

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Coverage

What sits behind this page.

Where each figure comes from and how far it reaches.

Prices
End-of-day closes provided by Twelve Data. One close per session; not real time. Closes adjusted for splits.
Series quality
250 clean closes in the period.
SEC records
444 documents on file, from Dec 1, 2020 to Oct 2, 2026.
Company description
No description available.
This page
Generated on Oct 19, 2026; refreshed through the day.

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Which SEC documents appear here?

Those filed with the SEC by the company, its insiders and its major shareholders, within our coverage: periodic reports (10-K, 10-Q, 20-F), material events (8-K), proposed sale notices (Form 144), insider transactions (Form 4) and stakes above 5% (13D/13G). Each links to the original on EDGAR.

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It depends on the company: some European issuers file a 20-F or 6-K with the SEC and others don't. The profile shows whatever is on record; when there is nothing, it says so rather than guessing why. Europe does not yet have a common filing archive like EDGAR in the United States. The EU will open its own, ESAP, in July 2027 (managers' transactions arrive in January 2028), and we plan to add it once it is available.

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Cullinan Therapeutics, Inc. (CGEM): stock price history, insider trades and SEC filings — HornScout