Caption Management, LLC
Position in PTGX — Protagonist Therapeutics, Inc
CIK 1706766
OKLAHOMA CITY, OK
Position in PTGX
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$5,516,100
+$5,516,100 QoQ
Shares Held
45,000
Ownership
0.070%
of shares outstanding
% of Portfolio
0.22%
of 13F equity value
Holder Rank
#99
of 341 holders
Holding Since
Sep 2021
16 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in PTGX Over Time
Shares Held
Position Value (USD)
Derivatives in PTGX
reported options exposure · as of Jun 30, 2026CallValue
$18,387,000
CallShares
150,000
PutValue
$19,833,444
PutShares
161,800
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. PTGX ranks #10 (2.2% of the industry book) .
| # | 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 PTGX
Export CSV
32 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $18,387,000 | 150,000 | Call | Sole | 2026-08-14 | |
| 2026-06-30 | $19,833,444 | 161,800 | Put | Sole | 2026-08-14 | |
| 2026-06-30 | $5,516,100 | 45,000 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $13,153,920 | 124,800 | Call | Sole | 2026-05-15 | |
| 2026-03-31 | $1,243,720 | 11,800 | Put | Sole | 2026-05-15 | |
| 2025-12-31 | $15,267,032 | 174,800 | Call | Sole | 2026-02-17 | |
| 2025-09-30 | $1,195,740 | 18,000 | Call | Sole | 2025-11-14 | |
| 2025-06-30 | $7,903,610 | 143,000 | Put | Sole | 2025-08-14 | |
| 2025-06-30 | $7,461,450 | 135,000 | Call | Sole | 2025-08-14 | |
| 2025-03-31 | $9,377,004 | 193,900 | Put | Sole | 2025-05-15 | |
| 2025-03-31 | $13,956,696 | 288,600 | Call | Sole | 2025-05-15 | |
| 2024-12-31 | $3,443,120 | 89,200 | Put | Sole | 2025-02-14 | |
| 2024-12-31 | $3,818,852 | 98,934 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $4,014,000 | 89,200 | Put | Sole | 2024-11-14 | |
| 2024-09-30 | $994,500 | 22,100 | Shares | Sole | 2024-11-14 | |
| 2023-06-30 | $528,646 | 19,140 | Shares | Sole | 2023-08-14 | |
| 2023-06-30 | $8,023,610 | 290,500 | Call | Sole | 2023-08-14 | |
| 2023-03-31 | $5,589 | 243 | Shares | Sole | 2023-05-15 | |
| 2023-03-31 | $575,000 | 25,000 | Call | Sole | 2023-05-15 | |
| 2022-12-31 | $436,400 | 40,000 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $337,200 | 40,000 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $82,264 | 10,400 | Shares | Sole | 2022-08-15 | |
| 2022-06-30 | $632,800 | 80,000 | Put | Sole | 2022-08-15 | |
| 2022-06-30 | $4,340,217 | 548,700 | Call | Sole | 2022-08-15 | |
| 2022-03-31 | $1,657,600 | 70,000 | Shares | Sole | 2022-05-13 | |
| 2022-03-31 | $14,113,280 | 596,000 | Call | Sole | 2022-05-13 | |
| 2021-12-31 | $6,590,408 | 192,702 | Shares | Sole | 2022-02-11 | |
| 2021-12-31 | $7,989,120 | 233,600 | Put | Sole | 2022-02-11 | |
| 2021-12-31 | $577,980 | 16,900 | Call | Sole | 2022-02-11 | |
| 2021-09-30 | $4,208,500 | 237,500 | Call | Sole | 2021-11-12 | |
| 2021-09-30 | $1,949,200 | 110,000 | Shares | Sole | 2021-11-12 | |
| 2021-09-30 | $4,208,500 | 237,500 | Put | Sole | 2021-11-12 | |
| No filing history on record for this holder in this stock. | ||||||