About this data
What it is
When a company's officers, directors or owners of more than 10% buy or sell its stock, they must report the trade to the SEC on Form 4. This feed shows purchases and sales on the open market; stock grants, option exercises and shares withheld for tax are left out.
Who files it
The insider, usually through the company, within two business days of the trade.
How current
We collect new filings throughout the day on SEC business days.
Worth knowing
Sales are often routine: insiders sell to diversify, to pay taxes, or under a 10b5-1 plan set up months in advance. A purchase with their own money is less common, which is why many investors pay closer attention to it.

All of this comes from public filings.

Open-market trades per day, last 30 days

05001,000Oct 17 · Purchases: 0Oct 17 · Sales: 0Oct 17Oct 18 · Purchases: 0Oct 18 · Sales: 0Oct 19 · Purchases: 29Oct 19 · Sales: 159Oct 20 · Purchases: 45Oct 20 · Sales: 209Oct 21 · Purchases: 38Oct 21 · Sales: 183Oct 21Oct 22 · Purchases: 50Oct 22 · Sales: 130Oct 23 · Purchases: 77Oct 23 · Sales: 126Oct 24 · Purchases: 1Oct 24 · Sales: 0Oct 25 · Purchases: 0Oct 25 · Sales: 0Oct 25Oct 26 · Purchases: 60Oct 26 · Sales: 171Oct 27 · Purchases: 27Oct 27 · Sales: 217Oct 28 · Purchases: 44Oct 28 · Sales: 135Oct 29 · Purchases: 35Oct 29 · Sales: 199Oct 29Oct 30 · Purchases: 68Oct 30 · Sales: 270Oct 31 · Purchases: 3Oct 31 · Sales: 0Nov 1 · Purchases: 2Nov 1 · Sales: 0Nov 2 · Purchases: 79Nov 2 · Sales: 826Nov 2Nov 3 · Purchases: 66Nov 3 · Sales: 337Nov 4 · Purchases: 67Nov 4 · Sales: 535Nov 5 · Purchases: 108Nov 5 · Sales: 458Nov 6 · Purchases: 137Nov 6 · Sales: 390Nov 6Nov 7 · Purchases: 0Nov 7 · Sales: 0Nov 8 · Purchases: 0Nov 8 · Sales: 0Nov 9 · Purchases: 110Nov 9 · Sales: 457Nov 10 · Purchases: 97Nov 10 · Sales: 406Nov 10Nov 11 · Purchases: 98Nov 11 · Sales: 330Nov 12 · Purchases: 54Nov 12 · Sales: 167Nov 13 · Purchases: 23Nov 13 · Sales: 28Nov 14 · Purchases: 0Nov 14 · Sales: 0Nov 14Nov 15 · Purchases: 0Nov 15 · Sales: 0
05001,000Oct 17 · Purchases: 0Oct 17 · Sales: 0Oct 17Oct 18 · Purchases: 0Oct 18 · Sales: 0Oct 19 · Purchases: 29Oct 19 · Sales: 159Oct 20 · Purchases: 45Oct 20 · Sales: 209Oct 21 · Purchases: 38Oct 21 · Sales: 183Oct 21Oct 22 · Purchases: 50Oct 22 · Sales: 130Oct 23 · Purchases: 77Oct 23 · Sales: 126Oct 24 · Purchases: 1Oct 24 · Sales: 0Oct 25 · Purchases: 0Oct 25 · Sales: 0Oct 25Oct 26 · Purchases: 60Oct 26 · Sales: 171Oct 27 · Purchases: 27Oct 27 · Sales: 217Oct 28 · Purchases: 44Oct 28 · Sales: 135Oct 29 · Purchases: 35Oct 29 · Sales: 199Oct 29Oct 30 · Purchases: 68Oct 30 · Sales: 270Oct 31 · Purchases: 3Oct 31 · Sales: 0Nov 1 · Purchases: 2Nov 1 · Sales: 0Nov 2 · Purchases: 79Nov 2 · Sales: 826Nov 2Nov 3 · Purchases: 66Nov 3 · Sales: 337Nov 4 · Purchases: 67Nov 4 · Sales: 535Nov 5 · Purchases: 108Nov 5 · Sales: 458Nov 6 · Purchases: 137Nov 6 · Sales: 390Nov 6Nov 7 · Purchases: 0Nov 7 · Sales: 0Nov 8 · Purchases: 0Nov 8 · Sales: 0Nov 9 · Purchases: 110Nov 9 · Sales: 457Nov 10 · Purchases: 97Nov 10 · Sales: 406Nov 10Nov 11 · Purchases: 98Nov 11 · Sales: 330Nov 12 · Purchases: 54Nov 12 · Sales: 167Nov 13 · Purchases: 23Nov 13 · Sales: 28Nov 14 · Purchases: 0Nov 14 · Sales: 0Nov 14Nov 15 · Purchases: 0Nov 15 · Sales: 0

Purchases Sales

By trade date. Insiders have two business days to file, so the most recent days fill in later.

Latest open-market insider trades

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Showing: ticker CGEM

Latest open-market insider trades
TradedInsiderCompanyTypeSharesPriceValueFiling
Nov 5, 2026Jennifer Michaelson
Chief Scientific Officer
CGEM
Cullinan Therapeutics, Inc.
Sale4,000$12.36$49.4K SaleForm 4 ↗
Sep 8, 2026Jennifer Michaelson
Chief Scientific Officer
CGEM
Cullinan Therapeutics, Inc.
Sale8,000$21.57$172.6K SaleForm 4 ↗
Aug 13, 2026Jennifer Michaelson
Chief Scientific Officer
CGEM
Cullinan Therapeutics, Inc.
Sale30,000$20.26$607.8K SaleForm 4 ↗
Jul 6, 2026Jennifer Michaelson
Chief Scientific Officer
CGEM
Cullinan Therapeutics, Inc.
Sale8,000$17.82$142.6K SaleForm 4 ↗
May 5, 2026Jennifer Michaelson
Chief Scientific Officer
CGEM
Cullinan Therapeutics, Inc.
Sale200$15.58$3,116 SaleForm 4 ↗
May 5, 2026Jennifer Michaelson
Chief Scientific Officer
CGEM
Cullinan Therapeutics, Inc.
Sale7,800$14.60$113.9K SaleForm 4 ↗
Mar 5, 2026Jennifer Michaelson
Chief Scientific Officer
CGEM
Cullinan Therapeutics, Inc.
Sale8,000$15.68$125.4K SaleForm 4 ↗
Feb 25, 2026Jennifer Michaelson
Chief Scientific Officer
CGEM
Cullinan Therapeutics, Inc.
Sale1,780$14.14$25.2K SaleForm 4 ↗
Feb 24, 2026Jennifer Michaelson
Chief Scientific Officer
CGEM
Cullinan Therapeutics, Inc.
Sale3,601$14.47$52.1K SaleForm 4 ↗
Feb 24, 2026Ahmed Nadim
President and CEO, Director
CGEM
Cullinan Therapeutics, Inc.
Sale13,515$14.47$195.6K SaleForm 4 ↗
Feb 24, 2026Jeffrey Alan Jones
Chief Medical Officer
CGEM
Cullinan Therapeutics, Inc.
Sale4,582$14.47$66.3K SaleForm 4 ↗
Feb 24, 2026Jacquelyn L. Sumer
Chief Legal Officer
CGEM
Cullinan Therapeutics, Inc.
Sale3,601$14.47$52.1K SaleForm 4 ↗
Feb 23, 2026Jennifer Michaelson
Chief Scientific Officer
CGEM
Cullinan Therapeutics, Inc.
Sale1,752$13.99$24.5K SaleForm 4 ↗
Feb 20, 2026Mary Kay Fenton
Chief Financial Officer
CGEM
Cullinan Therapeutics, Inc.
Sale4,398$13.62$59.9K SaleForm 4 ↗
Feb 20, 2026Jeffrey Alan Jones
Chief Medical Officer
CGEM
Cullinan Therapeutics, Inc.
Sale4,982$13.62$67.9K SaleForm 4 ↗
Feb 20, 2026Jennifer Michaelson
Chief Scientific Officer
CGEM
Cullinan Therapeutics, Inc.
Sale8,000$14.30$114.4K SaleForm 4 ↗
Feb 20, 2026Jennifer Michaelson
Chief Scientific Officer
CGEM
Cullinan Therapeutics, Inc.
Sale3,742$13.62$51.0K SaleForm 4 ↗
Feb 20, 2026Jacquelyn L. Sumer
Chief Legal Officer
CGEM
Cullinan Therapeutics, Inc.
Sale3,742$13.62$51.0K SaleForm 4 ↗
Feb 20, 2026Ahmed Nadim
President and CEO, Director
CGEM
Cullinan Therapeutics, Inc.
Sale16,381$13.62$223.1K SaleForm 4 ↗
Feb 12, 2026Jennifer Michaelson
Chief Scientific Officer
CGEM
Cullinan Therapeutics, Inc.
Sale416$12.03$5,004 SaleForm 4 ↗
Jan 22, 2026Jennifer Michaelson
Chief Scientific Officer
CGEM
Cullinan Therapeutics, Inc.
Sale4,000$12.30$49.2K SaleForm 4 ↗
Dec 23, 2025Ahmed Nadim
President and CEO, Director
CGEM
Cullinan Therapeutics, Inc.
Sale9,922$10.01$99.3K SaleForm 4 ↗
Dec 19, 2025Jennifer Michaelson
Chief Scientific Officer
CGEM
Cullinan Therapeutics, Inc.
Sale1,345$10.01$13.5K SaleForm 4 ↗
Dec 18, 2025Jacquelyn L. Sumer
Chief Legal Officer
CGEM
Cullinan Therapeutics, Inc.
Sale3,480$9.67$33.7K SaleForm 4 ↗
Dec 18, 2025Jeffrey Alan Jones
Chief Medical Officer
CGEM
Cullinan Therapeutics, Inc.
Sale4,632$9.67$44.8K SaleForm 4 ↗
Dec 18, 2025Jennifer Michaelson
Chief Scientific Officer
CGEM
Cullinan Therapeutics, Inc.
Sale2,898$9.67$28.0K SaleForm 4 ↗
Dec 15, 2025Jennifer Michaelson
Chief Scientific Officer
CGEM
Cullinan Therapeutics, Inc.
Sale995$11.90$11.8K SaleForm 4 ↗
Dec 12, 2025Jennifer Michaelson
Chief Scientific Officer
CGEM
Cullinan Therapeutics, Inc.
Sale2,148$12.38$26.6K SaleForm 4 ↗
Nov 24, 2025Jennifer Michaelson
Chief Scientific Officer
CGEM
Cullinan Therapeutics, Inc.
Sale4,000$12.30$49.2K SaleForm 4 ↗
Oct 28, 2025Weston Nichols
10% owner
CGEM
Cullinan Therapeutics, Inc.
Buy165,667$8.40$1.4M BuyForm 4 ↗
Oct 17, 2025Lynx1 Capital Management LP
10% owner
CGEM
Cullinan Therapeutics, Inc.
Buy32,217$7.84$252.6K BuyForm 4 ↗
Oct 16, 2025Lynx1 Capital Management LP
10% owner
CGEM
Cullinan Therapeutics, Inc.
Buy150,000$8.86$1.3M BuyForm 4 ↗
Oct 15, 2025Lynx1 Capital Management LP
10% owner
CGEM
Cullinan Therapeutics, Inc.
Buy51,500$7.94$408.9K BuyForm 4 ↗
Oct 14, 2025Lynx1 Capital Management LP
10% owner
CGEM
Cullinan Therapeutics, Inc.
Buy15,032$7.59$114.1K BuyForm 4 ↗
Oct 10, 2025Lynx1 Capital Management LP
10% owner
CGEM
Cullinan Therapeutics, Inc.
Buy277,298$7.36$2.0M BuyForm 4 ↗
Oct 9, 2025Lynx1 Capital Management LP
10% owner
CGEM
Cullinan Therapeutics, Inc.
Buy626,043$6.70$4.2M BuyForm 4 ↗
Oct 8, 2025Lynx1 Capital Management LP
10% owner
CGEM
Cullinan Therapeutics, Inc.
Buy556,300$6.46$3.6M BuyForm 4 ↗
Feb 25, 2025Jeffrey Alan Jones
Chief Medical Officer
CGEM
Cullinan Therapeutics, Inc.
Sale4,895$8.53$41.8K SaleForm 4 ↗
Feb 25, 2025Jennifer Michaelson
Chief Scientific Officer
CGEM
Cullinan Therapeutics, Inc.
Sale3,756$8.53$32.0K SaleForm 4 ↗
Feb 25, 2025Ahmed Nadim
President and CEO, Director
CGEM
Cullinan Therapeutics, Inc.
Sale12,529$8.53$106.9K SaleForm 4 ↗
Feb 25, 2025Jacquelyn L. Sumer
Chief Legal Officer
CGEM
Cullinan Therapeutics, Inc.
Sale3,756$8.53$32.0K SaleForm 4 ↗
Jan 6, 2025Jennifer Michaelson
Chief Scientific Officer
CGEM
Cullinan Therapeutics, Inc.
Sale4,000$12.51$50.0K SaleForm 4 ↗
Dec 24, 2024Ahmed Nadim
President and CEO, Director
CGEM
Cullinan Therapeutics, Inc.
Sale8,400$11.87$99.7K SaleForm 4 ↗
Dec 18, 2024Jennifer Michaelson
Chief Scientific Officer
CGEM
Cullinan Therapeutics, Inc.
Sale4,693$11.41$53.5K SaleForm 4 ↗
Dec 18, 2024Jeffrey Alan Jones
Chief Medical Officer
CGEM
Cullinan Therapeutics, Inc.
Sale4,632$11.41$52.9K SaleForm 4 ↗
Dec 18, 2024Jacquelyn L. Sumer
Chief Legal Officer
CGEM
Cullinan Therapeutics, Inc.
Sale3,482$11.41$39.7K SaleForm 4 ↗
Dec 12, 2024Jennifer Michaelson
Chief Scientific Officer
CGEM
Cullinan Therapeutics, Inc.
Sale3,489$12.52$43.7K SaleForm 4 ↗
Nov 5, 2024Jennifer Michaelson
Chief Scientific Officer
CGEM
Cullinan Therapeutics, Inc.
Sale8,000$15.64$125.1K SaleForm 4 ↗

48 items, most recent first (up to 50). Every row links to its original filing. Updated Nov 15, 2026, 6:14 PM EST.

Download CSV The rows of this feed, with the filters above. A download holds at most 10,000 rows; narrow the filters to get a smaller slice.

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