Position in HALO
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$102,436,029
+$54,157,096 QoQ
Shares Held
1,584,961
+120.9% QoQ
Ownership
1.34%
of shares outstanding
% of Portfolio
0.09%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
21 quarters on record
Voting authority
Sole 99.21133706129048.ToString("F0")%
Shared 0.ToString("F0")%
None 0.7886629387095329.ToString("F0")%
Common Shares in HALO Over Time
Shares Held
Position Value (USD)
Derivatives in HALO
reported options exposure · as of Dec 31, 2020CallValue
$747,425
CallShares
17,500
PutValue
$726,070
PutShares
17,000
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, 2026TWO SIGMA INVESTMENTS, LP holds $5,506,832,621 across 316 Biotechnology names. HALO ranks #10 (1.9% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
1,992,577 | $659,283,951 | |
| 2 | REGN |
Regeneron Pharmaceuticals, Inc.
|
812,236 | $627,566,023 | |
| 3 | MRNA |
Moderna, Inc.
|
9,086,404 | $461,589,323 | |
| 4 | IONS |
Ionis Pharmaceuticals Inc
|
5,857,629 | $439,849,361 | |
| 5 | BBIO |
BridgeBio Pharma, Inc.
|
3,120,631 | $231,738,058 | |
| 6 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
378,146 | $168,857,314 | |
| 7 | RVMD |
Revolution Medicines, Inc.
|
1,558,807 | $151,593,980 | |
| 8 | VKTX |
Viking Therapeutics, Inc.
|
4,432,142 | $144,221,900 |
All Filings in HALO
Export CSV
23 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $102,436,029 | 1,584,961 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $48,278,933 | 717,369 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $96,509,866 | 1,315,924 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $22,880,372 | 439,838 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $41,223,046 | 646,028 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $11,810,504 | 247,030 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $2,811,170 | 49,112 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $2,564,906 | 48,986 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $4,629,058 | 113,792 | Shares | Sole | 2024-05-15 | |
| 2023-03-31 | $8,188,852 | 214,424 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $31,356,110 | 551,074 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $4,236,276 | 107,139 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $25,098,964 | 570,431 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $5,557,756 | 139,362 | Shares | Sole | 2022-05-16 | |
| 2021-09-30 | $4,434,648 | 109,013 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $16,488,371 | 363,100 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $17,358,882 | 416,380 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $726,070 | 17,000 | Put | Sole | 2021-02-16 | |
| 2020-12-31 | $747,425 | 17,500 | Call | Sole | 2021-02-16 | |
| 2020-12-31 | $10,633,551 | 248,971 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $11,160,406 | 424,673 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $20,757,776 | 774,255 | Shares | Sole | 2020-08-14 | |
| 2020-03-31 | $19,874,236 | 1,104,738 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||