Position in MLYS
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$12,615,793
-$3,639,317 QoQ
Shares Held
467,598
-22.1% QoQ
Ownership
0.529%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#46
of 224 holders
Holding Since
Mar 2023
12 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in MLYS Over Time
Shares Held
Position Value (USD)
Derivatives in MLYS
reported options exposure · as of Jun 30, 2026CallValue
$2,045,084
CallShares
75,800
PutValue
$1,419,148
PutShares
52,600
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, 2026CITADEL ADVISORS LLC holds $6,088,670,159 across 436 Biotechnology names. MLYS ranks #85 (0.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ONC |
BeOne Medicines Ltd.
|
1,425,517 | $406,229,578 | |
| 2 | BBIO |
BridgeBio Pharma, Inc.
|
3,760,028 | $280,046,885 | |
| 3 | INSM |
INSMED Inc
|
2,556,973 | $272,624,460 | |
| 4 | MDGL |
Madrigal Pharmaceuticals, Inc.
|
507,233 | $272,358,759 | |
| 5 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
510,430 | $253,545,893 | |
| 6 | JAZZ |
Jazz Pharmaceuticals plc
|
1,006,676 | $242,578,715 | |
| 7 | MANE |
Veradermics, Inc
|
1,877,775 | $230,853,658 | |
| 8 | ROIV |
Roivant Sciences Ltd.
|
5,576,261 | $197,343,876 |
All Filings in MLYS
Export CSV
29 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $12,615,793 | 467,598 | Shares | Defined | 2026-08-14 | |
| 2026-06-30 | $1,419,148 | 52,600 | Put | Defined | 2026-08-14 | |
| 2026-06-30 | $2,045,084 | 75,800 | Call | Defined | 2026-08-14 | |
| 2026-03-31 | $16,255,110 | 600,041 | Shares | Defined | 2026-05-15 | |
| 2026-03-31 | $2,424,555 | 89,500 | Call | Defined | 2026-05-15 | |
| 2026-03-31 | $1,993,824 | 73,600 | Put | Defined | 2026-05-15 | |
| 2025-12-31 | $1,277,408 | 35,200 | Put | Defined | 2026-02-17 | |
| 2025-12-31 | $14,513,059 | 399,919 | Shares | Defined | 2026-02-17 | |
| 2025-12-31 | $2,162,884 | 59,600 | Call | Defined | 2026-02-17 | |
| 2025-09-30 | $1,968,048 | 51,900 | Put | Defined | 2025-11-14 | |
| 2025-09-30 | $78,389,247 | 2,067,227 | Shares | Defined | 2025-11-14 | |
| 2025-09-30 | $1,205,856 | 31,800 | Call | Defined | 2025-11-14 | |
| 2025-06-30 | $194,588 | 14,382 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $828,936 | 52,200 | Put | Defined | 2025-05-15 | |
| 2025-03-31 | $2,292,468 | 144,362 | Shares | Defined | 2025-05-15 | |
| 2025-03-31 | $144,508 | 9,100 | Call | Defined | 2025-05-15 | |
| 2024-09-30 | $100,513 | 8,300 | Call | Defined | 2024-11-14 | |
| 2024-09-30 | $37,976 | 3,136 | Shares | Defined | 2024-11-14 | |
| 2024-09-30 | $58,128 | 4,800 | Put | Defined | 2024-11-14 | |
| 2024-06-30 | $198,900 | 17,000 | Call | Defined | 2024-08-14 | |
| 2024-06-30 | $152,497 | 13,034 | Shares | Defined | 2024-08-14 | |
| 2024-06-30 | $18,720 | 1,600 | Put | Defined | 2024-08-14 | |
| 2024-03-31 | $81,333 | 6,300 | Put | Defined | 2024-05-15 | |
| 2024-03-31 | $1,252 | 97 | Shares | Defined | 2024-05-15 | |
| 2024-03-31 | $129,100 | 10,000 | Call | Defined | 2024-05-15 | |
| 2023-12-31 | $991,605 | 115,303 | Shares | Defined | 2024-02-14 | |
| 2023-12-31 | $4,300 | 500 | Call | Defined | 2024-02-14 | |
| 2023-09-30 | $177,038 | 18,616 | Shares | Defined | 2023-11-14 | |
| 2023-03-31 | $2,991,811 | 191,048 | Shares | Defined | 2023-05-15 | |
| No filing history on record for this holder in this stock. | ||||||