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Gossamer Bio, Inc.

GOSS No buying or selling
CIK 0001728117 #4496 in the set updated 21 Sep 2026
Bought (12 mo)
$0.00
out of their own pocket, the only kind of buying there is
Sold (12 mo)
$0.00
$0.00 on a plan · $0.00 straight out of an exercise
Sold at will
$0.00
0 of 0 sales
Net
$0.00
$0.00 against sales at will

By person

7 insiders · 0 transactions
2.4×

Faheem Hasnain holds only 2.4 times base salary in stock. $1.61M of shares against $649.65K in salary for 2025.

Salary from the company's own proxy. The shares are what Faheem Hasnain last reported holding, valued at $1.92, the price Common Stock was last bought or sold at on the open market here, on 19 Aug 2025.

Insider
Role
Bought
Sold
Net
Holding
Worth
Change
Hasnain Faheem
President & CEO
837,793
$1.61M
+596.5%
Christian Waage
EVP, Tech Ops and Admin
814,061
$1.56M
+34.7%
Aranda Richard
Chief Medical Officer
463,106
$889.16K
+123.9%
Giraudo Bryan
COO/CFO
389,737
$748.30K
+320.3%
Smith Robert Paul JR
Chief Commercial Officer
260,898
$500.92K
+5,513%
Peterson Caryn
Chief Development Officer
259,333
$497.92K
+420.4%
Milligan Sandra
Director
58,050
$111.46K
+81.4%

No percentages here. This company's share count has moved by a factor of 2.2 over the window, from 226,604,137 to 488,846,722 shares. A split, a merger or a large issue changes what the company is, and a holding measured at one point in that run is not a fraction of it at another.

Nothing of that kind in this period.

What was left out

Form 4 filings counted 29
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 0
Sales at will 0
Transactions with no price 0
Shares from compensation/vesting 1,946,000
History held since 12 Feb 2019