Purchases and Sales Made in Q3 2025 in Ionis Pharmaceuticals Inc (IONS)
This table provides information about the institutional ownership of Ionis Pharmaceuticals Inc (IONS) during Q3 2025. The information is specifically focused on institutions that hold shares of IONIS PHARMACEUTICALS INC.
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Nov 12, 2025
Q3 2025
|
Dld Asset Management, LP
New York, NY |
BUY
|
- |
25MNew |
$999M - $1.64B
|
25M
$1.79B
|
|
|
Nov 14, 2025
Q3 2025
|
Lombard Odier Asset Management (Europe) LTD
London, X0 |
BUY
|
- |
6.49MNew |
$259M - $425M
|
6.49M
$465M
|
|
|
Nov 14, 2025
Q3 2025
|
Deerfield Management Company, L.P. (Series C)
New York, NY |
BUY
|
- |
1.98MNew |
$79.1M - $130M
|
1.98M
$142M
|
|
|
Nov 13, 2025
Q3 2025
|
Marshall Wace, LLP
London, X0 |
BUY
|
- |
946K+ 7219.31% |
$37.8M - $61.9M
|
959K
$68.6M
|
|
|
Nov 14, 2025
Q3 2025
|
Ken Griffin
Citadel Advisors LLC | Chicago, Il
|
BUY
|
- |
907K+ 60.68% |
$36.2M - $59.3M
|
2.4M
$172M
|
|
|
Nov 12, 2025
Q3 2025
|
American Century Companies Inc
Kansas City, MO |
BUY
|
- |
899K+ 190.27% |
$35.9M - $58.8M
|
1.37M
$98.2M
|
|
|
Nov 18, 2025
Q3 2025
|
Pictet Asset Management Holding Sa
Carouge, V8 |
BUY
|
- |
784K+ 128.89% |
$31.3M - $51.3M
|
1.39M
$99.7M
|
|
|
Nov 14, 2025
Q3 2025
|
Summit Partners Public Asset Management, LLC
Boston, MA |
BUY
|
- |
750KNew |
$30M - $49.1M
|
750K
$53.7M
|
|
|
Nov 14, 2025
Q3 2025
|
Nomura Holdings Inc
Tokyo, M0 |
BUY
|
- |
701K+ 2180.4% |
$28M - $45.9M
|
733K
$52.5M
|
|
|
Nov 12, 2025
Q3 2025
|
Artisan Partners Limited Partnership
Milwaukee, WI |
BUY
|
- |
687K+ 338.07% |
$27.4M - $44.9M
|
890K
$63.7M
|
|
|
Nov 14, 2025
Q3 2025
|
D. E. Shaw & Co., Inc.
New York, NY |
BUY
|
- |
631KNew |
$25.2M - $41.3M
|
631K
$45.1M
|
|
|
Nov 13, 2025
Q3 2025
|
Arrowstreet Capital, Limited Partnership
Boston, MA |
BUY
|
- |
630KNew |
$25.2M - $41.2M
|
630K
$45.1M
|
|
|
Nov 13, 2025
Q3 2025
|
Connor, Clark & Lunn Investment Management Ltd.
|
BUY
|
- |
612K+ 230.39% |
$24.5M - $40.1M
|
878K
$62.8M
|
|
|
Nov 14, 2025
Q3 2025
|
Vestal Point Capital, LP
New York, NY |
BUY
|
- |
575K+ 115.0% |
$23M - $37.6M
|
1.08M
$76.9M
|
|
|
Nov 14, 2025
Q3 2025
|
Baker Bros. Advisors LP
New York, NY |
BUY
|
- |
567KNew |
$22.6M - $37.1M
|
567K
$40.6M
|
|
|
Nov 14, 2025
Q3 2025
|
Royal Bank Of Canada
Toronto, A6 |
BUY
|
- |
427K+ 53.34% |
$17M - $27.9M
|
1.23M
$87.8M
|
|
|
Nov 14, 2025
Q3 2025
|
Susquehanna International Group, LLP
Bala Cynwyd, PA |
BUY
|
- |
421KNew |
$16.8M - $27.5M
|
421K
$30.1M
|
|
|
Nov 14, 2025
Q3 2025
|
Boone Capital Management LLC
Atlanta, GA |
BUY
|
- |
418KNew |
$16.7M - $27.3M
|
418K
$29.9M
|
|
|
Nov 14, 2025
Q3 2025
|
Ikarian Capital, LLC
Dallas, TX |
BUY
|
- |
415KNew |
$16.6M - $27.2M
|
415K
$29.7M
|
|
|
Nov 14, 2025
Q3 2025
|
Axa Investment Managers S.A.
Puteaux, I0 |
BUY
|
- |
406KNew |
$16.2M - $26.6M
|
406K
$29.1M
|
|
|
Nov 14, 2025
Q3 2025
|
Tang Capital Management LLC
San Diego, CA |
BUY
|
- |
400K+ 266.67% |
$16M - $26.2M
|
550K
$39.4M
|
|
|
Nov 14, 2025
Q3 2025
|
Ameriprise Financial Inc
Minneapolis, MN |
BUY
|
- |
398K+ 108.04% |
$15.9M - $26M
|
766K
$54.8M
|
|
|
Nov 13, 2025
Q3 2025
|
Jane Street Group, LLC
New York, NY |
BUY
|
- |
365KNew |
$14.6M - $23.9M
|
365K
$26.1M
|
|
|
Nov 14, 2025
Q3 2025
|
Ubs Asset Management Americas Inc
Chicago, IL |
BUY
|
- |
363K+ 45.9% |
$14.5M - $23.8M
|
1.15M
$82.6M
|
|
|
Oct 29, 2025
Q3 2025
|
Massachusetts Financial Services CO
Boston, MA |
BUY
|
- |
343K+ 66.14% |
$13.7M - $22.5M
|
863K
$61.7M
|
|
|
Nov 14, 2025
Q3 2025
|
Man Group PLC
London, X0 |
BUY
|
- |
325K+ 3621.93% |
$13M - $21.3M
|
334K
$23.9M
|
|
|
Oct 07, 2025
Q3 2025
|
Assenagon Asset Management S.A.
|
BUY
|
- |
295K+ 1668.99% |
$11.8M - $19.3M
|
312K
$22.3M
|
|
|
Nov 13, 2025
Q3 2025
|
Bank Of Montreal
Toronto, A6 |
BUY
|
- |
264K+ 54.65% |
$10.5M - $17.3M
|
747K
$53.5M
|
|
|
Nov 13, 2025
Q3 2025
|
Invesco Ltd.
Atlanta, GA |
BUY
|
- |
263K+ 102.58% |
$10.5M - $17.2M
|
519K
$37.1M
|
|
|
Nov 14, 2025
Q3 2025
|
Squarepoint Ops LLC
New York, NY |
BUY
|
- |
249K+ 185.57% |
$9.96M - $16.3M
|
384K
$27.5M
|
|
|
Nov 14, 2025
Q3 2025
|
Wellington Management Group LLP
Boston, MA |
BUY
|
- |
243K+ 3.83% |
$9.71M - $15.9M
|
6.59M
$471M
|
|
|
Nov 14, 2025
Q3 2025
|
Jain Global LLC
New York, NY |
BUY
|
- |
219K+ 3037.44% |
$8.73M - $14.3M
|
226K
$16.2M
|
|
|
Nov 13, 2025
Q3 2025
|
Jim Simons
Renaissance Technologies LLC | New York, Ny
|
BUY
|
- |
216K+ 79.79% |
$8.63M - $14.1M
|
487K
$34.8M
|
|
|
Nov 14, 2025
Q3 2025
|
Algert Global LLC
San Francisco, CA |
BUY
|
- |
214K+ 562.33% |
$8.55M - $14M
|
252K
$18.1M
|
|
|
Nov 13, 2025
Q3 2025
|
Capital World Investors
Los Angeles, CA |
BUY
|
- |
183K+ 1.46% |
$7.29M - $11.9M
|
12.7M
$910M
|
|
|
Nov 12, 2025
Q3 2025
|
Geode Capital Management, LLC
Boston, MA |
BUY
|
- |
175K+ 6.06% |
$7M - $11.5M
|
3.07M
$219M
|
|
|
Nov 14, 2025
Q3 2025
|
Cinctive Capital Management LP
New York, NY |
BUY
|
- |
174KNew |
$6.94M - $11.4M
|
174K
$12.4M
|
|
|
Nov 12, 2025
Q3 2025
|
Nuveen, LLC
Charlotte, NC |
BUY
|
- |
171K+ 69.58% |
$6.81M - $11.2M
|
416K
$29.7M
|
|
|
Nov 14, 2025
Q3 2025
|
Boothbay Fund Management, LLC
New York, NY |
BUY
|
- |
163KNew |
$6.53M - $10.7M
|
163K
$11.7M
|
|
|
Oct 17, 2025
Q3 2025
|
Capricorn Fund Managers LTD
London, X0 |
BUY
|
- |
163KNew |
$6.5M - $10.7M
|
163K
$11.6M
|
|
|
Nov 14, 2025
Q3 2025
|
Alyeska Investment Group, L.P.
Chicago, IL |
BUY
|
- |
152K+ 95.75% |
$6.08M - $9.96M
|
311K
$22.3M
|
|
|
Nov 14, 2025
Q3 2025
|
Exodus Point Capital Management, LP
New York, NY |
BUY
|
- |
152KNew |
$6.08M - $9.95M
|
152K
$10.9M
|
|
|
Nov 14, 2025
Q3 2025
|
Natixis
Paris, I0 |
BUY
|
- |
145KNew |
$5.8M - $9.5M
|
145K
$10.4M
|
|
|
Nov 12, 2025
Q3 2025
|
Barclays PLC
London, X0 |
BUY
|
- |
131K+ 22.42% |
$5.22M - $8.56M
|
714K
$51.1M
|
|
|
Nov 13, 2025
Q3 2025
|
Rhenman & Partners Asset Management Ab
Stockholm, V7 |
BUY
|
- |
128K+ 70.33% |
$5.11M - $8.37M
|
310K
$22.2M
|
|
|
Nov 07, 2025
Q3 2025
|
Jpmorgan Chase & CO
New York, NY |
BUY
|
- |
123K+ 29.17% |
$4.91M - $8.04M
|
544K
$39M
|
|
|
Nov 13, 2025
Q3 2025
|
Acadian Asset Management LLC
Boston, MA |
BUY
|
- |
110KNew |
$4.41M - $7.23M
|
110K
$7.9M
|
|
|
Nov 14, 2025
Q3 2025
|
Amundi
Paris, I0 |
BUY
|
- |
102KNew |
$4.06M - $6.64M
|
102K
$7.26M
|
|
|
Nov 07, 2025
Q3 2025
|
Skandinaviska Enskilda Banken Ab (Publ)
Stockholm, V7 |
BUY
|
- |
96.2K+ 161.28% |
$3.84M - $6.29M
|
156K
$11.1M
|
|
|
Nov 03, 2025
Q3 2025
|
Lisanti Capital Growth, LLC
|
BUY
|
- |
92.1KNew |
$3.68M - $6.03M
|
92.1K
$6.59M
|
|