Position in IRON
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
Mar 2021
11 quarters on record
Common Shares in IRON Over Time
Shares Held
Position Value (USD)
Derivatives in IRON
reported options exposure · as of Jun 30, 2026CallValue
$10,971,000
CallShares
150,000
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, 2026Caption Management, LLC holds $249,760,911 across 78 Biotechnology names.
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | CGON |
CG Oncology, Inc.
|
484,461 | $34,420,954 | |
| 2 | INSM |
INSMED Inc
|
236,000 | $25,162,320 | |
| 3 | ERAS |
Erasca, Inc.
|
1,041,225 | $19,075,242 | |
| 4 | CELC |
Celcuity Inc.
|
170,000 | $17,785,400 | |
| 5 | DSGN |
Design Therapeutics, Inc.
|
1,118,098 | $16,178,878 | |
| 6 | MLYS |
Mineralys Therapeutics, Inc.
|
413,087 | $11,145,087 | |
| 7 | REPL |
Replimune Group, Inc.
|
783,873 | $8,677,474 | |
| 8 | TARS |
Tarsus Pharmaceuticals, Inc.
|
120,700 | $7,596,858 |
All Filings in IRON
Export CSV
18 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $10,971,000 | 150,000 | Call | Sole | 2026-08-14 | |
| 2026-03-31 | $19,182,000 | 300,000 | Call | Sole | 2026-05-15 | |
| 2025-09-30 | $502,208 | 7,600 | Call | Sole | 2025-11-14 | |
| 2025-06-30 | $22,576,848 | 426,300 | Call | Sole | 2025-08-14 | |
| 2025-03-31 | $948,124 | 19,100 | Call | Sole | 2025-05-15 | |
| 2024-06-30 | $1,014,075 | 22,500 | Call | Sole | 2024-08-14 | |
| 2024-03-31 | $2,334,750 | 37,500 | Call | Sole | 2024-05-15 | |
| 2024-03-31 | $4,345,748 | 69,800 | Put | Sole | 2024-05-15 | |
| 2023-12-31 | $5,539,184 | 95,900 | Call | Sole | 2024-02-14 | |
| 2023-12-31 | $2,483,680 | 43,000 | Shares | Sole | 2024-02-14 | |
| 2023-12-31 | $9,374,448 | 162,300 | Put | Sole | 2024-02-14 | |
| 2023-09-30 | $1,794,636 | 38,200 | Call | Sole | 2023-11-14 | |
| 2023-09-30 | $1,254,366 | 26,700 | Put | Sole | 2023-11-14 | |
| 2021-06-30 GMTX | — | 86,800 | Put | Sole | 2021-08-16 | |
| 2021-06-30 GMTX | — | 384,900 | Call | Sole | 2021-08-16 | |
| 2021-06-30 GMTX | — | 86,800 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 GMTX | — | 85,800 | Put | Sole | 2021-05-17 | |
| 2021-03-31 GMTX | — | 365,500 | Call | Sole | 2021-05-17 | |
| No filing history on record for this holder in this stock. | ||||||