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Octagon Capital Advisors LP

Position in GOSS — Gossamer Bio, Inc.

CIK 1839435 NEW YORK, NY

Position in GOSS

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$1,278,750
-$1,271,000 QoQ
Shares Held
7,750,000
0.0% QoQ
Ownership
1.59%
of shares outstanding
% of Portfolio
0.12%
of 13F equity value
Holder Rank
#14
of 168 holders
Holding Since
Dec 2020
23 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in GOSS Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

Octagon Capital Advisors LP holds $1,046,707,283 across 25 Biotechnology names. GOSS ranks #25 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in GOSS

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25 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,278,750 7,750,000
2026-03-31 $2,953,121 8,976,054
2026-03-31 $2,549,750 7,750,000
2025-12-31 $43,137,650 13,915,371
2025-09-30 $44,841,500 17,050,000
2025-06-30 $22,570,500 18,350,000
2025-03-31 $20,185,000 18,350,000
2024-12-31 $16,606,750 18,350,000
2024-12-31 $17,716,328 19,576,054
2024-09-30 $9,059,252 9,187,883
2024-06-30 $8,278,282 9,187,883
2024-03-31 $10,841,701 9,187,883
2023-12-31 $8,388,537 9,187,883
2023-09-30 $6,820,506 8,187,883
2023-06-30 $4,749,682 3,958,069
2023-03-31 $2,467,166 1,958,069
2022-12-31 $4,249,009 1,958,069
2022-09-30 $24,504,395 2,045,442
2022-06-30 $23,085,037 2,758,069
2022-03-31 $22,248,037 2,563,138
2021-12-31 $17,113,590 1,513,138
2021-09-30 $19,020,144 1,513,138
2021-06-30 $11,474,680 1,413,138
2021-03-31 $13,071,526 1,413,138
2020-12-31 $15,115,544 1,563,138