Position in IONS
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$32,258,587
+$5,930,542 QoQ
Shares Held
429,599
+29.1% QoQ
Ownership
0.260%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
22 quarters on record
Voting authority
Sole 97.08611984664769.ToString("F0")%
Shared 0.ToString("F0")%
None 2.9138801533523124.ToString("F0")%
Common Shares in IONS Over Time
Shares Held
Position Value (USD)
Derivatives in IONS
reported options exposure · as of Jun 30, 2021CallValue
$0
CallShares
0
PutValue
$355,021
PutShares
8,900
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, 2026D. E. Shaw & Co., Inc. holds $4,371,472,260 across 180 Biotechnology names. IONS ranks #31 (0.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | INSM |
INSMED Inc
|
5,625,825 | $919,934,903 | |
| 2 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
1,059,062 | $350,411,843 | |
| 3 | BBIO |
BridgeBio Pharma, Inc.
|
2,545,486 | $189,027,789 | |
| 4 | PCVX |
Vaxcyte, Inc.
|
2,865,318 | $166,503,628 | |
| 5 | EXEL |
Exelixis, Inc.
|
3,603,063 | $154,535,371 | |
| 6 | HALO |
Halozyme Therapeutics, Inc.
|
1,868,708 | $120,774,597 | |
| 7 | PTCT |
Ptc Therapeutics, Inc.
|
1,640,381 | $111,759,157 | |
| 8 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
248,960 | $111,170,598 |
All Filings in IONS
Export CSV
31 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $32,258,587 | 429,599 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $26,328,045 | 332,803 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $41,275,963 | 630,938 | Shares | Defined | 2025-11-14 | |
| 2024-12-31 | $808,379 | 23,123 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 | $5,812,344 | 145,091 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $9,092,622 | 190,781 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $6,956,894 | 160,482 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $6,028,202 | 119,158 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $16,422,361 | 362,045 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $8,050,619 | 196,213 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $3,096,906 | 86,651 | Shares | Defined | 2023-05-15 | |
| 2022-12-31 | $11,301,954 | 299,231 | Shares | Defined | 2023-02-14 | |
| 2022-09-30 | $9,263,751 | 209,445 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $4,687,509 | 126,621 | Shares | Defined | 2022-08-15 | |
| 2021-12-31 | $4,888,853 | 160,659 | Shares | Defined | 2022-02-14 | |
| 2021-09-30 | $4,229,595 | 126,106 | Shares | Defined | 2021-11-15 | |
| 2021-06-30 | $355,021 | 8,900 | Put | Defined | 2021-08-16 | |
| 2021-06-30 | $2,978,426 | 74,666 | Shares | Defined | 2021-08-16 | |
| 2021-03-31 | $364,445 | 8,106 | Shares | Defined | 2021-05-17 | |
| 2021-03-31 | $400,144 | 8,900 | Put | Defined | 2021-05-17 | |
| 2020-12-31 | $503,206 | 8,900 | Put | Defined | 2021-02-16 | |
| 2020-12-31 | $758,597 | 13,417 | Shares | Defined | 2021-02-16 | |
| 2020-12-31 | $2,199,406 | 38,900 | Call | Defined | 2021-02-16 | |
| 2020-09-30 | $422,305 | 8,900 | Put | Defined | 2020-11-16 | |
| 2020-09-30 | $10,588,419 | 223,149 | Shares | Defined | 2020-11-16 | |
| 2020-09-30 | $1,845,805 | 38,900 | Call | Defined | 2020-11-16 | |
| 2020-06-30 | $524,744 | 8,900 | Put | Defined | 2020-08-14 | |
| 2020-06-30 | $6,654,933 | 112,872 | Shares | Defined | 2020-08-14 | |
| 2020-06-30 | $2,293,544 | 38,900 | Call | Defined | 2020-08-14 | |
| 2020-03-31 | $1,181,810 | 24,996 | Shares | Defined | 2020-05-15 | |
| 2020-03-31 | $1,839,192 | 38,900 | Call | Defined | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||