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Cullinan Therapeutics, Inc.

CGEM Net buying
CIK 0001789972 #2364 in the set updated 17 Sep 2026
Bought (12 mo)
$13.32M
out of their own pocket, the only kind of buying there is
Sold (12 mo)
$2.51M
$252.08K on a plan · $1.33M straight out of an exercise
Sold at will
$926.59K
12 of 28 sales
Net
+$10.81M
+$12.40M against sales at will

By person

7 insiders · 36 transactions
12.0×

Nadim Ahmed holds 12.0 times base salary in stock. $8.43M of shares against $698.48K in salary for 2025.

Salary from the company's own proxy. The shares are what Nadim Ahmed last reported holding, valued at $21.57, the price Common Stock was last bought or sold at on the open market here, on 8 Sep 2026.

Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Lynx1 Capital Management LP entity
10% owner
$13.32M (8)
—
+$13.32M
8,963,500
13.93%
$193.34M
+26.4%
Michaelson Jennifer
Chief Scientific Officer
—
$1.62M (18) scheduled
−$1.62M
158,844
0.2468%
$3.43M
+34.7%
AHMED NADIM
President and CEO
—
$517.99K (3)
−$517.99K
390,803
0.6073%
$8.43M
+43.9%
Jones Jeffrey Alan
Chief Medical Officer
—
$178.95K (3)
−$178.95K
159,968
0.2486%
$3.45M
+34.8%
SUMER JACQUELYN L
Chief Legal Officer
—
$136.72K (3)
−$136.72K
130,559
0.2029%
$2.82M
+35.8%
Fenton Mary Kay
Chief Financial Officer
—
$59.90K (1)
−$59.90K
127,921
0.1988%
$2.76M
+6,293%
Savill Corrine
Chief Business Officer
—
—
—
240,990
0.3745%
$5.20M
+18.4%

Individual transactions

36
Insider
Date
Role
Action
Shares
Price
Amount
Michaelson Jennifer
8 Sep 2026
Chief Scientific Officer
Sold after exercise
8,000
$21.57
$172.56K
Michaelson Jennifer
13 Aug 2026
Chief Scientific Officer
Sold after exercise
30,000
$20.26
$607.80K
Michaelson Jennifer
6 Jul 2026
Chief Scientific Officer
Sold after exercise
8,000
$17.82
$142.56K
Michaelson Jennifer
5 May 2026
Chief Scientific Officer
Sold after exercise
200
$15.58
$3.12K
Michaelson Jennifer
5 May 2026
Chief Scientific Officer
Sold after exercise
7,800
$14.60
$113.88K
Michaelson Jennifer
5 Mar 2026
Chief Scientific Officer
Sold after exercise
8,000
$15.68
$125.44K
Michaelson Jennifer
25 Feb 2026
Chief Scientific Officer
Sold on a plan
1,780
$14.14
$25.17K
SUMER JACQUELYN L
24 Feb 2026
Chief Legal Officer
Sell
3,601
$14.47
$52.11K
Jones Jeffrey Alan
24 Feb 2026
Chief Medical Officer
Sell
4,582
$14.47
$66.30K
AHMED NADIM
24 Feb 2026
President and CEO
Sell
13,515
$14.47
$195.56K
Michaelson Jennifer
24 Feb 2026
Chief Scientific Officer
Sold on a plan
3,601
$14.47
$52.11K
Michaelson Jennifer
23 Feb 2026
Chief Scientific Officer
Sold on a plan
1,752
$13.99
$24.51K
Fenton Mary Kay
20 Feb 2026
Chief Financial Officer
Sell
4,398
$13.62
$59.90K
AHMED NADIM
20 Feb 2026
President and CEO
Sell
16,381
$13.62
$223.11K
SUMER JACQUELYN L
20 Feb 2026
Chief Legal Officer
Sell
3,742
$13.62
$50.97K
Michaelson Jennifer
20 Feb 2026
Chief Scientific Officer
Sold after exercise
8,000
$14.30
$114.40K
Michaelson Jennifer
20 Feb 2026
Chief Scientific Officer
Sold after exercise
3,742
$13.62
$50.97K
Jones Jeffrey Alan
20 Feb 2026
Chief Medical Officer
Sell
4,982
$13.62
$67.85K
Michaelson Jennifer
12 Feb 2026
Chief Scientific Officer
Sell
416
$12.03
$5.00K
Michaelson Jennifer
22 Jan 2026
Chief Scientific Officer
Sold on a plan
4,000
$12.30
$49.20K
AHMED NADIM
23 Dec 2025
President and CEO
Sell
9,922
$10.01
$99.32K
Michaelson Jennifer
19 Dec 2025
Chief Scientific Officer
Sold on a plan
1,345
$10.01
$13.46K
Michaelson Jennifer
18 Dec 2025
Chief Scientific Officer
Sell
2,898
$9.67
$28.02K
Jones Jeffrey Alan
18 Dec 2025
Chief Medical Officer
Sell
4,632
$9.67
$44.79K
SUMER JACQUELYN L
18 Dec 2025
Chief Legal Officer
Sell
3,480
$9.67
$33.65K
Michaelson Jennifer
15 Dec 2025
Chief Scientific Officer
Sold on a plan
995
$11.90
$11.84K
Michaelson Jennifer
12 Dec 2025
Chief Scientific Officer
Sold on a plan
2,148
$12.38
$26.59K
Michaelson Jennifer
24 Nov 2025
Chief Scientific Officer
Sold on a plan
4,000
$12.30
$49.20K
Lynx1 Capital Management LP
28 Oct 2025
10% owner
Buy indirect
165,667
$8.40
$1.39M
Lynx1 Capital Management LP
17 Oct 2025
10% owner
Buy indirect
32,217
$7.84
$252.57K
Lynx1 Capital Management LP
16 Oct 2025
10% owner
Buy indirect
150,000
$8.86
$1.33M
Lynx1 Capital Management LP
15 Oct 2025
10% owner
Buy indirect
51,500
$7.94
$409.05K
Lynx1 Capital Management LP
14 Oct 2025
10% owner
Buy indirect
15,032
$7.59
$114.05K
Lynx1 Capital Management LP
10 Oct 2025
10% owner
Buy indirect
277,298
$7.36
$2.04M
Lynx1 Capital Management LP
9 Oct 2025
10% owner
Buy indirect
626,043
$6.70
$4.19M
Lynx1 Capital Management LP
8 Oct 2025
10% owner
Buy indirect
556,300
$6.46
$3.59M

What was left out

Form 4 filings counted 42
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 3
Sales on a Rule 10b5-1 plan 8
Sales straight out of an exercise 8
Sales at will 12
Transactions with no price 0
Shares from compensation/vesting 184,288
History held since 11 Jan 2021