Position in IRON
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$10,001,895
+$9,085,989 QoQ
Shares Held
136,750
+829.6% QoQ
Ownership
0.356%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#46
of 216 holders
Holding Since
Jun 2021
8 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in IRON Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026TWO SIGMA INVESTMENTS, LP holds $7,273,657,992 across 342 Biotechnology names. IRON ranks #87 (0.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
1,875,937 | $564,713,315 | |
| 2 | MRNA |
Moderna, Inc.
|
7,193,530 | $503,762,905 | |
| 3 | IONS |
Ionis Pharmaceuticals Inc
|
6,252,342 | $495,748,197 | |
| 4 | REGN |
Regeneron Pharmaceuticals, Inc.
|
656,124 | $409,119,558 | |
| 5 | BBIO |
BridgeBio Pharma, Inc.
|
4,722,185 | $351,708,338 | |
| 6 | EXEL |
Exelixis, Inc.
|
4,209,861 | $229,058,537 | |
| 7 | INCY |
Incyte Corp
|
2,003,559 | $227,123,448 | |
| 8 | ARGX |
Argenx SE
|
185,638 | $172,229,367 |
All Filings in IRON
Export CSV
8 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $10,001,895 | 136,750 | Shares | Sole | 2026-08-14 | |
| 2024-03-31 | $915,906 | 14,711 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $1,333,909 | 23,094 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $436,914 | 9,300 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $1,787,588 | 40,261 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $511,738 | 24,150 | Shares | Sole | 2023-05-15 | |
| 2021-09-30 GMTX | — | 39,493 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 GMTX | — | 14,304 | Shares | Sole | 2021-08-16 | |
| No filing history on record for this holder in this stock. | ||||||