Ticker · CUSIP 38341P102

GOSS

GOSSAMER BIO INC
···Share
Holders (tracked)
15
Combined shares
16,698,924
Combined value
$51.77M
Last close
$0.45
Quarter
2025Q4
Price · 1Y$0.45-0.40 (-47.09%)H $3.79 · L $0.32 · Avg Vol 6.4M
Position opened
$1.00$2.00$3.00VolJul 25Oct 25Jan 26Apr 26
Tracked holders · last 8 quarters
+3 vs previous quarter over the last 8.
15102024Q12025Q4
Price is -85.6% vs the avg quarter-end implied price across tracked holders.

SEC event timeline

18 events
  1. −50,109 shares · 2025Q4
    Position
  2. −1,579,429 shares · 2025Q4
    Position
  3. +1,109,859 shares · 2025Q4
    Position
  4. −35,041 shares · 2025Q4
    Position
  5. +100,000 shares · 2025Q4
    Position
  6. +472,625 shares · 2025Q4
    Position
  7. +12,480 shares · 2025Q4
    Position
  8. −40,392 shares · 2025Q4
    Position
  9. +50,000 shares · 2025Q4
    Position
  10. −2,321,300 shares · 2025Q4
    Position
  11. −46,464 shares · 2025Q3
    Position
  12. +646,615 shares · 2025Q3
    Position
  13. +3,123,081 shares · 2025Q3
    Position
  14. +542,124 shares · 2025Q3
    Position
  15. +192,010 shares · 2025Q3
    Position
  16. +5,367 shares · 2025Q3
    Position
  17. +641,715 shares · 2025Q3
    Position
  18. +247,894 shares · 2025Q3
    Position

Insider activity

No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of GOSS…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
InvestorFirst inCost basisReturnPosition value today
Renaissance Technologies2020Q1$1.23-63.8%$294K
T. Rowe Price2022Q3$1.43-68.8%$50K
Two Sigma Investments2020Q1$2.24-80.1%$1.5M
Izzy Englander (Millennium Mgmt)2019Q1$2.53-82.3%$1.6M
AQR Capital Management2022Q4$2.82-84.2%$499K
Ken Griffin (Citadel Advisors)2019Q1$3.04-85.3%$76K
Ken Griffin (Citadel Advisors)2019Q1$3.04-85.3%$76K
Ken Griffin (Citadel Advisors)2019Q1$3.04-85.3%$76K
D.E. Shaw & Co.2022Q1$3.08-85.5%$89K
Paul Tudor Jones (Tudor Investment)2020Q3$3.36-86.7%$134K
Paul Tudor Jones (Tudor Investment)2020Q3$3.36-86.7%$134K
Paul Tudor Jones (Tudor Investment)2020Q3$3.36-86.7%$134K
Steve Cohen (Point72)2019Q2$4.50-90.1%$56K
Wellington Management2019Q1$5.59-92.0%$268K
Hillhouse (HHLR Advisors)2019Q1$16.64-97.3%$2.2M

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.
New positions1
Added to4
Trimmed5
Exited0

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
11
$6.43B
2022Q2
10
$2.74B
2022Q3
12
$200.3M
2022Q4
9
$39.9M
2023Q1
11
$26.8M
2023Q2
12
$19.2M
2023Q3
9
$19.7M
2023Q4
10
$22.4M
2024Q1
10
$27.1M
2024Q2
10
$23.0M
2024Q3
9
$17.9M
2024Q4
9
$10.5M
2025Q1
9
$12.0M
2025Q2
10
$13.6M
2025Q3
12
$47.8M
2025Q4
15
$51.8M

Who owns GOSS

15 super-investors · 2025Q4
Tracked stake
16.70M
shares
Combined value
$52M
% of shares outstanding
shares-out unknown
Quarter action mix
New3Added4Trim7Held1
#ManagerSharesValue
1Hillhouse
HHLR Advisors
4.97M$15M
2Izzy Englander
Millennium Mgmt
3.58M$11M
3Two Sigma Investments3.40M$11M
4AQR Capital Management1.12M$3M
5Ken Griffin
Citadel Advisors
704.8K$2M
6Ken Griffin
Citadel Advisors
691.1K$2M
7Renaissance Technologies658.9K$2M
8Wellington Management601.3K$2M
9Paul Tudor Jones
Tudor Investment
300.0K$930K
10D.E. Shaw & Co.198.7K$616K
11Ken Griffin
Citadel Advisors
171.3K$531K
12Steve Cohen
Point72
125.0K$388K
13T. Rowe Price113.1K$351K
14Paul Tudor Jones
Tudor Investment
50.0K$155K
15Paul Tudor Jones
Tudor Investment
10.0K$31K

Recent moves

20 transactions
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