Position in RARE
as of Jun 30, 2026
· filed Aug 3, 2026
Position Value
$11,180,775
+$8,672,956 QoQ
Shares Held
334,854
+179.7% QoQ
Ownership
0.340%
of shares outstanding
% of Portfolio
0.09%
of 13F equity value
Holder Rank
#53
of 303 holders
Holding Since
Sep 2022
16 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in RARE Over Time
Shares Held
Position Value (USD)
Derivatives in RARE
reported options exposure · as of Jun 30, 2026CallValue
$0
CallShares
0
PutValue
$380,646
PutShares
11,400
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, 2026Walleye Capital LLC holds $328,313,978 across 124 Biotechnology names. RARE ranks #6 (3.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ASND |
Ascendis Pharma A/S
|
126,005 | $33,608,053 | |
| 2 | CYTK |
Cytokinetics Inc
|
239,728 | $20,422,428 | |
| 3 | BMRN |
Biomarin Pharmaceutical Inc
|
288,233 | $16,492,692 | |
| 4 | IDYA |
IDEAYA Biosciences, Inc.
|
386,183 | $14,393,040 | |
| 5 | REGN |
Regeneron Pharmaceuticals, Inc.
|
22,596 | $14,089,509 | |
| 6 | RARE |
Ultragenyx Pharmaceutical Inc.
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|
334,854 | $11,180,775 | |
| 7 | TYRA |
Tyra Biosciences, Inc.
|
347,898 | $11,111,862 | |
| 8 | BCAX |
Bicara Therapeutics Inc.
|
353,226 | $10,487,279 |
All Filings in RARE
Export CSV
39 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $380,646 | 11,400 | Put | Sole | 2026-08-03 | |
| 2026-06-30 | $11,180,775 | 334,854 | Shares | Sole | 2026-08-03 | |
| 2026-03-31 | $2,507,819 | 119,705 | Shares | Sole | 2026-05-13 | |
| 2026-03-31 | $685,065 | 32,700 | Call | Sole | 2026-05-13 | |
| 2026-03-31 | $270,255 | 12,900 | Put | Sole | 2026-05-13 | |
| 2025-12-31 | $880,900 | 38,300 | Call | Sole | 2026-02-13 | |
| 2025-12-31 | $308,200 | 13,400 | Put | Sole | 2026-02-13 | |
| 2025-12-31 | $839,132 | 36,484 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $2,043,424 | 67,933 | Shares | Sole | 2025-11-14 | |
| 2025-09-30 | $418,112 | 13,900 | Call | Sole | 2025-11-14 | |
| 2025-09-30 | $836,224 | 27,800 | Put | Sole | 2025-11-14 | |
| 2025-06-30 | $160,565 | 4,416 | Shares | Sole | 2025-08-13 | |
| 2025-06-30 | $363,600 | 10,000 | Put | Sole | 2025-08-13 | |
| 2025-06-30 | $112,716 | 3,100 | Call | Sole | 2025-08-13 | |
| 2025-03-31 | $1,342,920 | 37,087 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $366,009 | 8,700 | Put | Sole | 2025-02-13 | |
| 2024-12-31 | $471,057 | 11,197 | Shares | Sole | 2025-02-13 | |
| 2024-12-31 | $100,968 | 2,400 | Call | Sole | 2025-02-13 | |
| 2024-09-30 | $483,285 | 8,700 | Put | Sole | 2024-11-14 | |
| 2024-09-30 | $133,320 | 2,400 | Call | Sole | 2024-11-14 | |
| 2024-09-30 | $2,728,449 | 49,117 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $357,570 | 8,700 | Put | Sole | 2024-08-14 | |
| 2024-06-30 | $98,640 | 2,400 | Call | Sole | 2024-08-14 | |
| 2024-06-30 | $16,053,331 | 390,592 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $12,449,468 | 266,641 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $7,255,585 | 151,727 | Shares | Sole | 2024-02-14 | |
| 2023-12-31 | $301,266 | 6,300 | Put | Sole | 2024-02-14 | |
| 2023-12-31 | $157,806 | 3,300 | Call | Sole | 2024-02-14 | |
| 2023-09-30 | $153,295 | 4,300 | Call | Sole | 2023-11-21 | |
| 2023-09-30 | $8,199,678 | 230,005 | Shares | Sole | 2023-11-21 | |
| 2023-09-30 | $228,160 | 6,400 | Put | Sole | 2023-11-21 | |
| 2023-06-30 | $916,326 | 19,864 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $32,080 | 800 | Put | Sole | 2023-05-15 | |
| 2023-03-31 | $849,077 | 21,174 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $194,586 | 4,200 | Call | Sole | 2023-02-14 | |
| 2022-12-31 | $83,394 | 1,800 | Put | Sole | 2023-02-14 | |
| 2022-12-31 | $244,066 | 5,268 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $37,269 | 900 | Put | Sole | 2022-11-14 | |
| 2022-09-30 | $339,562 | 8,200 | Call | Sole | 2022-11-14 | |
| No filing history on record for this holder in this stock. | ||||||