戈薩默生物公司
US ˙ NasdaqGS ˙ US38341P1021

SecurityGOSS / Gossamer Bio, Inc.
InstitutionInvesco Ltd.
Latest Disclosed Ownership464,968 shares
Latest Disclosed Value $ 152,742
Invesco Ltd. reports 2.91% decrease in ownership of GOSS / Gossamer Bio, Inc.

On May 12, 2026 - Invesco Ltd. filed a 13F-HR form disclosing ownership of 464,968 shares of Gossamer Bio, Inc. (US:GOSS) valued at $152,742 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 19, 2026 disclosing 478,909 shares of Gossamer Bio, Inc.. This represents a change in shares of -2.91% during the quarter. The current value of the position is $82,671 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-12 2026-03-31 13F GOSSAMER BIO COM 38341P102 464,968 -13,941 -2.91 153 -89.76 0.0000
2026-02-19 2025-12-31 13F GOSSAMER BIO COM 38341P102 478,909 126,823 36.02 1,485 60.43 0.0002
2025-11-13 2025-09-30 13F GOSSAMER BIO COM 38341P102 352,086 112,841 47.17 926 214.63 0.0001
2025-08-13 2025-06-30 13F GOSSAMER BIO COM 38341P102 239,245 195,548 447.51 294 512.50 0.0001
2025-05-12 2025-03-31 13F GOSSAMER BIO COM 38341P102 43,697 43,697 48 0.0000
2023-08-11 2023-06-30 13F GOSSAMER BIO COM 38341P102 0 -25,420 -100.00 0 -100.00
2023-05-12 2023-03-31 13F GOSSAMER BIO COM 38341P102 25,420 -32,427 -56.06 32 -74.40 0.0000
2023-02-13 2022-12-31 13F GOSSAMER BIO COM 38341P102 57,847 -918,152 -94.07 126 -98.93 0.0000
2022-11-14 2022-09-30 13F GOSSAMER BIO COM 38341P102 975,999 916,979 1,553.68 11,692 2,266.80 0.0038
2022-08-15 2022-06-30 13F GOSSAMER BIO COM 38341P102 59,020 9,251 18.59 494 14.35 0.0001
2022-05-16 2022-03-31 13F GOSSAMER BIO COM 38341P102 49,769 2,732 5.81 432 -18.80 0.0001
2022-02-14 2021-12-31 13F GOSSAMER BIO COM 38341P102 47,037 -5,365 -10.24 532 -19.27 0.0001
2021-11-15 2021-09-30 13F GOSSAMER BIO COM 38341P102 52,402 3,321 6.77 659 65.58 0.0002
2021-08-17 2021-06-30 13F GOSSAMER BIO COM 38341P102 49,081 10,145 26.06 398 10.56 0.0001
2021-05-17 2021-03-31 13F GOSSAMER BIO COM 38341P102 38,936 27,307 234.82 360 221.43 0.0001
2021-02-16 2020-12-31 13F GOSSAMER BIO COM 38341P102 11,629 11,629 112 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.