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JANE STREET GROUP, LLC

Position in GOSS — Gossamer Bio, Inc.

CIK 1595888 NEW YORK, NY

Position in GOSS

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$0
+$0 QoQ
Shares Held
0
Ownership
0.000%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Jun 2020
23 quarters on record

Common Shares in GOSS Over Time

Shares Held

Position Value (USD)

Derivatives in GOSS

reported options exposure · as of Jun 30, 2026
CallValue
$22,275
CallShares
135,000
PutValue
$0
PutShares
0

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Biotechnology

Healthcare · as of Jun 30, 2026

JANE STREET GROUP, LLC holds $1,364,050,815 across 292 Biotechnology names.

# Ticker Company Shares Value (USD) Open

All Filings in GOSS

Export CSV
29 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $22,275 135,000
2026-03-31 $51,158 155,500
2026-03-31 $11,218 34,100
2025-12-31 $482,331 155,591
2025-12-31 $1,147,310 370,100
2025-12-31 $47,430 15,300
2025-09-30 $938,647 356,900
2025-09-30 $1,846,430 702,065
2025-09-30 $53,652 20,400
2025-06-30 $63,345 51,500
2025-03-31 $751,764 683,423
2024-12-31 $11,560 12,774
2024-06-30 $84,111 93,354
2024-03-31 $380,348 322,330
2023-12-31 $202,505 221,803
2023-09-30 $11,570 13,891
2023-06-30 $398,080 331,734
2023-03-31 $1,626,841 1,291,144
2022-12-31 $205,003 94,472
2022-09-30 $1,735,793 144,891
2022-06-30 $800,983 95,697
2022-03-31 $275,077 31,691
2021-12-31 $316,284 27,965
2021-09-30 $603,371 48,001
2021-06-30 $164,161 20,217
2020-12-31 $314,129 32,485
2020-09-30 $219,657 17,700
2020-09-30 $477,659 38,490
2020-06-30 $600,600 46,200