Gossamer Bio, Inc.
DE ˙ DB ˙ US38341P1021
0,17 € ↑0,02 (10,16%)
2026-06-05
DEL PRIS
SecurityDE:4GB / Gossamer Bio, Inc.
InstitutionPrincipal Financial Group Inc
Latest Disclosed Ownership17,586 shares
Latest Disclosed Value $ 5,777
Principal Financial Group Inc reports 53.97% increase in ownership of 4GB / Gossamer Bio, Inc.

On May 4, 2026 - Principal Financial Group Inc filed a 13F-HR form disclosing ownership of 17,586 shares of Gossamer Bio, Inc. (DE:4GB) valued at $4,833 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 11,422 shares of Gossamer Bio, Inc.. This represents a change in shares of 53.97% during the quarter. The current value of the position is $2,954 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)
2026-05-04 2026-03-31 13F GOSSAMER BIO COM 38341P102 17,586 6,164 53.97 6 -85.71 0.0000
2026-02-02 2025-12-31 13F GOSSAMER BIO COM 38341P102 11,422 -3,156 -21.65 35 -7.89 0.0000
2025-11-04 2025-09-30 13F GOSSAMER BIO COM 38341P102 14,578 1,070 7.92 38 137.50 0.0000
2025-08-08 2025-06-30 13F GOSSAMER BIO COM 38341P102 13,508 13,508 17 0.0000
2024-07-29 2024-06-30 13F GOSSAMER BIO COM 38341P102 0 -29,935 -100.00 0 -100.00
2024-04-29 2024-03-31 13F GOSSAMER BIO COM 38341P102 29,935 -4,608 -13.34 35 12.90 0.0000
2024-02-07 2023-12-31 13F GOSSAMER BIO COM 38341P102 34,543 1,039 3.10 32 14.81 0.0000
2023-11-02 2023-09-30 13F GOSSAMER BIO COM 38341P102 33,504 0 0.00 28 -32.50 0.0000
2023-08-07 2023-06-30 13F GOSSAMER BIO COM 38341P102 33,504 12,353 58.40 40 53.85 0.0000
2023-05-09 2023-03-31 13F GOSSAMER BIO COM 38341P102 21,151 -1,369 -6.08 27 -45.83 0.0000
2023-02-09 2022-12-31 13F GOSSAMER BIO COM 38341P102 22,520 4,511 25.05 49 -77.78 0.0000
2022-11-09 2022-09-30 13F GOSSAMER BIO COM 38341P102 18,009 -342 -1.86 216 40.26 0.0002
2022-08-10 2022-06-30 13F GOSSAMER BIO COM 38341P102 18,351 18,351 154 0.0001
2022-02-09 2021-12-31 13F GOSSAMER BIO COM 38341P102 0 -15,001 -100.00 0 -100.00
2021-11-09 2021-09-30 13F GOSSAMER BIO COM 38341P102 15,001 -2,435 -13.97 189 33.10 0.0001
2021-08-10 2021-06-30 13F GOSSAMER BIO COM 38341P102 17,436 586 3.48 142 -8.97 0.0001
2021-05-10 2021-03-31 13F GOSSAMER BIO COM 38341P102 16,850 1,185 7.56 156 3.31 0.0001
2021-02-23 2020-12-31 13F/A-1 GOSSAMER BIO COM 38341P102 15,665 2,229 16.59 151 -9.58 0.0001
2021-02-08 2020-12-31 13F GOSSAMER BIO COM 38341P102 15,665 2,229 151 59.4057
2020-11-06 2020-09-30 13F GOSSAMER BIO COM 38341P102 13,436 -664 -4.71 167 -8.74 0.0001
2020-08-05 2020-06-30 13F GOSSAMER BIO COM 38341P102 14,100 3,920 38.51 183 77.67 0.0002
2020-05-12 2020-03-31 13F GOSSAMER BIO COM 38341P102 10,180 10,180 103 0.0001
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.