MILLENNIUM MANAGEMENT LLC
Position in RARE — Ultragenyx Pharmaceutical Inc.
CIK 1273087
NEW YORK, NY
Position in RARE
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$37,127,254
+$16,872,442 QoQ
Shares Held
1,772,184
+101.2% QoQ
Ownership
1.80%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in RARE Over Time
Shares Held
Position Value (USD)
Derivatives in RARE
reported options exposure · as of Jun 30, 2025CallValue
$727,200
CallShares
20,000
PutValue
$563,580
PutShares
15,500
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 Mar 31, 2026MILLENNIUM MANAGEMENT LLC holds $4,565,450,068 across 341 Biotechnology names. RARE ranks #32 (0.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | JAZZ |
Jazz Pharmaceuticals plc
|
1,262,511 | $238,677,704 | |
| 2 | INSM |
INSMED Inc
|
1,157,786 | $189,321,166 | |
| 3 | BMRN |
Biomarin Pharmaceutical Inc
|
3,010,308 | $170,052,298 | |
| 4 | TERN |
Terns Pharmaceuticals, Inc.
|
3,011,558 | $158,769,337 | |
| 5 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
447,887 | $148,192,371 | |
| 6 | FOLD |
AMICUS THERAPEUTICS, INC.
|
7,908,459 | $114,356,317 | |
| 7 | ARDX |
Ardelyx, Inc.
|
17,842,370 | $106,875,796 | |
| 8 | BLTE |
Belite Bio, Inc
|
570,088 | $90,894,830 |
All Filings in RARE
Export CSV
30 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $37,127,254 | 1,772,184 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $20,254,812 | 880,644 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $2,984,327 | 99,213 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $727,200 | 20,000 | Call | Sole | 2025-08-14 | |
| 2025-06-30 | $17,683,358 | 486,341 | Shares | Sole | 2025-08-14 | |
| 2025-06-30 | $563,580 | 15,500 | Put | Sole | 2025-08-14 | |
| 2025-03-31 | $25,795,750 | 712,393 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $29,332,718 | 697,236 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $39,478,773 | 710,689 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $76,065,167 | 1,850,734 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $9,352,007 | 200,300 | Call | Sole | 2024-05-15 | |
| 2024-03-31 | $33,052,084 | 707,905 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $1,365,356 | 28,552 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $3,883,996 | 108,948 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $2,557,677 | 55,445 | Shares | Sole | 2023-08-14 | |
| 2023-06-30 | $691,950 | 15,000 | Call | Sole | 2023-08-14 | |
| 2023-03-31 | $30,550,064 | 761,847 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $35,800,441 | 772,727 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $12,232,596 | 295,402 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $7,387,757 | 123,831 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $538,695 | 7,418 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $5,317,851 | 63,240 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $9,719,235 | 107,764 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $53,718,950 | 563,387 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $7,400,900 | 65,000 | Call | Sole | 2021-05-17 | |
| 2020-12-31 | $290,010 | 2,095 | Shares | Sole | 2021-02-16 | |
| 2020-12-31 | $1,010,539 | 7,300 | Call | Sole | 2021-02-16 | |
| 2020-09-30 | $489,277 | 5,953 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $4,343,009 | 55,523 | Shares | Sole | 2020-08-14 | |
| 2020-03-31 | $595,095 | 13,394 | Shares | Sole | 2020-05-14 | |
| No filing history on record for this holder in this stock. | ||||||