Position in GOSS
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$6,467,813
+$4,822,813 QoQ
Shares Held
39,198,868
+684.0% QoQ
Ownership
8.02%
of shares outstanding
% of Portfolio
0.62%
of 13F equity value
Holder Rank
#2
of 168 holders
Holding Since
Sep 2023
12 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 Dec 31, 2025CallValue
$930,310
CallShares
300,100
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, 2026683 Capital Management, LLC holds $349,034,024 across 34 Biotechnology names. GOSS ranks #17 (1.9% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ANAB |
Anaptysbio, Inc
|
660,000 | $44,550,000 | |
| 2 | PTGX |
Protagonist Therapeutics, Inc
|
290,000 | $35,548,200 | |
| 3 | MGTX |
MeiraGTx Holdings plc
|
2,300,000 | $31,073,000 | |
| 4 | WVE |
Wave Life Sciences, Inc.
|
4,950,000 | $28,759,500 | |
| 5 | QURE |
uniQure N.V.
|
575,000 | $26,484,500 | |
| 6 | TGTX |
Tg Therapeutics, Inc.
|
389,081 | $21,376,110 | |
| 7 | PHAT |
Phathom Pharmaceuticals, Inc.
|
1,850,000 | $20,072,500 | |
| 8 | TRAX |
First Tracks Biotherapeutics, Inc.
|
750,000 | $15,090,000 |
All Filings in GOSS
Export CSV
18 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $6,467,813 | 39,198,868 | Shares | Defined | 2026-08-14 | |
| 2026-06-04 | $8,876,605 | 49,868,571 | Shares | Sole | 2026-06-11 | |
| 2026-03-31 | $1,645,000 | 5,000,000 | Shares | Defined | 2026-05-15 | |
| 2026-03-18 | $4,049,785 | 9,331,304 | Shares | Sole | 2026-03-24 | |
| 2026-02-23 | $5,216,141 | 12,331,304 | Shares | Sole | 2026-03-02 | |
| 2025-12-31 | $16,091,480 | 5,190,800 | Shares | Defined | 2026-02-17 | |
| 2025-12-31 | $930,310 | 300,100 | Call | Defined | 2026-02-17 | |
| 2025-09-30 | $13,305,696 | 5,059,200 | Shares | Defined | 2025-11-14 | |
| 2025-09-30 | $789,263 | 300,100 | Call | Defined | 2025-11-14 | |
| 2025-06-30 | $7,798,200 | 6,340,000 | Shares | Defined | 2025-08-14 | |
| 2025-06-30 | $369,123 | 300,100 | Call | Defined | 2025-08-14 | |
| 2025-03-31 | $6,710,000 | 6,100,000 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $6,312,375 | 6,975,000 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 | $5,718,800 | 5,800,000 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $5,180,750 | 5,750,000 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $3,835,000 | 3,250,000 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $3,026,321 | 3,314,700 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $1,437,873 | 1,726,139 | Shares | Defined | 2023-11-14 | |
| No filing history on record for this holder in this stock. | ||||||