Security key
462222100
IONIS PHARMACEUTICALS INC - COMMON STOCK (IONS)
CUSIP: 462222100
Q1 2025 13F Holders as of 31 Mar 2025
- Type / Class
- Equity / COMMON STOCK
- Shares outstanding
- 166,460,189
- Total 13F shares
- 165,860,888
- Share change
- +5,291,035
- Total reported value
- $5,004,903,523
- Put/Call ratio
- 77%
- Price per share
- $30.17
- Number of holders
- 340
- Value change
- +$131,542,151
- Number of buys
- 151
- Number of sells
- 182
Report period
Q1 2025
Institutions
340
Top holders
10
IONS full security history
Newer quarter: Q2 2025
Previous quarter: Q4 2024
IONIS PHARMACEUTICALS INC SEC filings
IONIS PHARMACEUTICALS INC company facts
Broader feeds
Reporting periods
Holder history for CUSIP 462222100
Recent filing periods:
Top shareholders of IONS - IONIS PHARMACEUTICALS INC - COMMON STOCK (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
|
Company |
5.7%
from 13D/G
|
11,665,548
|
$407,827,557 | — | 31 Dec 2024 | |
| FMR LLC |
13F
|
Company |
14%
|
22,689,491
|
$793,224,593 | — | 31 Dec 2024 | |
| VANGUARD GROUP INC |
13F
|
Company |
9.9%
|
16,472,539
|
$575,879,963 | — | 31 Dec 2024 | |
| T. Rowe Price Investment Management, Inc. |
13F
|
Company |
8.5%
|
14,169,199
|
$495,356,000 | — | 31 Dec 2024 | |
| Capital World Investors |
13F
|
Company |
6.9%
|
11,465,413
|
$400,830,838 | — | 31 Dec 2024 | |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
|
Company |
5.2%
|
8,672,148
|
$303,178,294 | — | 31 Dec 2024 | |
| Bellevue Group AG |
13F
|
Company |
4.7%
|
7,868,700
|
$275,089,752 | — | 31 Dec 2024 | |
| STATE STREET CORP |
13F
|
Company |
3.3%
|
5,426,413
|
$189,707,398 | — | 31 Dec 2024 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
2.3%
|
3,826,939
|
$133,791,000 | — | 31 Dec 2024 | |
| Tweedy, Browne Co LLC |
13F
|
Company |
2%
|
3,248,863
|
$113,580,250 | — | 31 Dec 2024 | |
| ORBIMED ADVISORS LLC |
13F
|
Company |
1.7%
|
2,817,347
|
$98,494,451 | — | 31 Dec 2024 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1.6%
|
2,687,248
|
$93,975,889 | — | 31 Dec 2024 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
1.3%
|
2,165,916
|
$75,720,424 | — | 31 Dec 2024 | |
| Deep Track Capital, LP |
13F
|
Company |
1.2%
|
1,933,928
|
$67,610,123 | — | 31 Dec 2024 | |
| UBS Group AG |
13F
|
Company |
1.2%
|
1,917,608
|
$67,039,575 | — | 31 Dec 2024 | |
| MACQUARIE GROUP LTD |
13F
|
Company |
1.1%
|
1,769,743
|
$61,870,000 | — | 31 Dec 2024 | |
| NORGES BANK |
13F
|
Company |
1%
|
1,714,762
|
$59,948,080 | — | 31 Dec 2024 | |
| Clearbridge Investments, LLC |
13F
|
Company |
0.97%
|
1,618,220
|
$56,572,971 | — | 31 Dec 2024 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.89%
|
1,481,440
|
$51,791,142 | — | 31 Dec 2024 | |
| TWO SIGMA ADVISERS, LP |
13F
|
Company |
0.81%
|
1,349,211
|
$47,168,417 | — | 31 Dec 2024 | |
| MORGAN STANLEY |
13F
|
Company |
0.8%
|
1,329,929
|
$46,494,395 | — | 31 Dec 2024 | |
| BNP Paribas Asset Management Holding S.A. |
13F
|
Company |
0.65%
|
1,080,341
|
$37,768,000 | — | 31 Dec 2024 | |
| TD ASSET MANAGEMENT INC |
13F
|
Company |
0.63%
|
1,049,990
|
$36,707,650 | — | 31 Dec 2024 | |
| ARK Investment Management LLC |
13F
|
Company |
0.62%
|
1,025,260
|
$35,843,086 | — | 31 Dec 2024 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
0.55%
|
921,439
|
$32,213,507 | — | 31 Dec 2024 | |
| S.c.a. Candriam |
13F
|
Individual |
0.51%
|
849,824
|
$29,709,847 | — | 31 Dec 2024 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.5%
|
840,271
|
$29,375,874 | — | 31 Dec 2024 | |
| Hudson Bay Capital Management LP |
13F
|
Company |
0.49%
|
821,200
|
$28,709,152 | — | 31 Dec 2024 | |
| MARSHALL WACE, LLP |
13F
|
Company |
0.49%
|
812,306
|
$28,398,216 | — | 31 Dec 2024 | |
| Invesco Ltd. |
13F
|
Company |
0.47%
|
788,599
|
$27,569,422 | — | 31 Dec 2024 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.47%
|
774,215
|
$27,066,556 | — | 31 Dec 2024 | |
| ROYAL BANK OF CANADA |
13F
|
Company |
0.39%
|
643,192
|
$22,485,000 | — | 31 Dec 2024 | |
| Camber Capital Management LP |
13F
|
Company |
0.38%
|
625,000
|
$21,850,000 | — | 31 Dec 2024 | |
| Pictet Asset Management Holding SA |
13F
|
Company |
0.37%
|
620,798
|
$21,703,098 | — | 31 Dec 2024 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
0.37%
|
619,641
|
$21,662,650 | — | 31 Dec 2024 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.37%
|
616,071
|
$21,537,852 | — | 31 Dec 2024 | |
| J. Goldman & Co LP |
13F
|
Company |
0.36%
|
607,499
|
$21,238,165 | — | 31 Dec 2024 | |
| AXA S.A. |
13F
|
Company |
0.36%
|
605,345
|
$21,162,861 | — | 31 Dec 2024 | |
| BARCLAYS PLC |
13F
|
Company |
0.36%
|
596,072
|
$20,838,677 | — | 31 Dec 2024 | |
| Vestal Point Capital, LP |
13F
|
Company |
0.36%
|
595,000
|
$20,801,200 | — | 31 Dec 2024 | |
| PINNACLE ASSOCIATES LTD |
13F
|
Company |
0.33%
|
547,642
|
$19,145,564 | — | 31 Dec 2024 | |
| Asset Managment Groupama |
13F
|
Individual |
0.31%
|
517,191
|
$18,060,310 | — | 31 Dec 2024 | |
| GREAT POINT PARTNERS LLC |
13F
|
Company |
0.3%
|
505,007
|
$17,655,045 | — | 31 Dec 2024 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.25%
|
422,861
|
$14,783,220 | — | 31 Dec 2024 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.25%
|
415,919
|
$14,540,529 | — | 31 Dec 2024 | |
| Aberdeen Group plc |
13F
|
Company |
0.24%
|
401,501
|
$14,028,445 | — | 31 Dec 2024 | |
| C WorldWide Group Holding A/S |
13F
|
Company |
0.24%
|
400,000
|
$13,984,000 | — | 31 Dec 2024 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
0.23%
|
387,448
|
$13,542,735 | — | 31 Dec 2024 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.23%
|
378,208
|
$13,222,152 | — | 31 Dec 2024 | |
| Schonfeld Strategic Advisors LLC |
13F
|
Company |
0.22%
|
371,381
|
$12,983,479 | — | 31 Dec 2024 |
Institutional Holders of IONIS PHARMACEUTICALS INC - COMMON STOCK (IONS) as of Q1 2025
As of 31 Mar 2025,
IONIS PHARMACEUTICALS INC - COMMON STOCK (IONS) was held by
340 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
165,860,888 shares.
The largest 10 holders included
FMR LLC, VANGUARD GROUP INC, T. Rowe Price Investment Management, Inc., Capital World Investors, BlackRock, Inc., WELLINGTON MANAGEMENT GROUP LLP, Bellevue Group AG, STATE STREET CORP, Deep Track Capital, LP, and CITADEL ADVISORS LLC.
This page lists
342
institutional shareholders reporting positions in this security
for the Q1 2025 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q1 2025 vs Q4 2024 Across Filers
Q4 2024 holders
348
Q1 2025 holders
340
Holder diff
-8
| Investor | Q4 2024 Shares | Q1 2025 Shares | Share Diff | Share Chg % | Q4 2024 Value $ | Q1 2025 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.