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MILLENNIUM MANAGEMENT LLC

Position in GOSS — Gossamer Bio, Inc.

CIK 1273087 NEW YORK, NY

Position in GOSS

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$396,434
+$334,774 QoQ
Shares Held
2,402,633
+1182.0% QoQ
Ownership
0.491%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#26
of 168 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in GOSS Over Time

Shares Held

Position Value (USD)

Derivatives in GOSS

reported options exposure · as of Mar 31, 2022
CallValue
$1,866,200
CallShares
215,000
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

MILLENNIUM MANAGEMENT LLC holds $4,596,585,112 across 322 Biotechnology names. GOSS ranks #274 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in GOSS

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30 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $396,434 2,402,633
2026-03-31 $61,660 187,418
2025-12-31 $11,111,292 3,584,288
2025-09-30 $9,518,835 3,619,329
2025-06-30 $610,385 496,248
2025-03-31 $2,945,839 2,678,036
2024-12-31 $3,245,390 3,586,067
2024-09-30 $3,085,083 3,128,888
2024-06-30 $5,043,237 5,597,378
2024-03-31 $7,664,595 6,495,420
2023-12-31 $3,857,068 4,224,610
2023-09-30 $5,873,782 7,051,360
2023-06-30 $5,048,492 4,207,077
2023-03-31 $6,880,078 5,460,380
2022-12-31 $10,037,358 4,625,511
2022-09-30 $15,922,797 1,329,115
2022-06-30 $12,393,500 1,480,705
2022-03-31 $1,866,200 215,000
2022-03-31 $1,507,603 173,687
2021-12-31 $2,362,568 208,892
2021-09-30 $6,395,490 508,790
2021-06-30 $4,933,841 607,616
2021-03-31 $381,673 41,262
2020-12-31 $1,909,960 197,514
2020-09-30 $1,489,200 120,000
2020-09-30 $4,804,953 387,184
2020-06-30 $130,000 10,000
2020-06-30 $2,586,467 198,959
2020-03-31 $101,500 10,000
2020-03-31 $1,224,445 120,635