Latest Institutional Purchases of Ionis Pharmaceuticals Inc (IONS)
This list provides information on the latest institutional transactions involving Ionis Pharmaceuticals Inc (IONS) stock that were buys. The list includes the name of the institution, the number of shares exchanged, the range of values for the transaction, and the number of shares held by the institution after the purchase has occurred.
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Jan 12, 2026
Q4 2025
|
Davenport & CO LLC
|
BUY
|
- |
155K+ 248.28% |
$10.2M - $11.6M
|
218K
$15.6M
|
|
|
Jan 09, 2026
Q4 2025
|
Sg Americas Securities, LLC
|
BUY
|
- |
28.3K+ 548.72% |
$1.86M - $2.11M
|
33.4K
$2.39M
|
|
|
Jan 15, 2026
Q4 2025
|
J. Safra Sarasin Holding Ag
Basel, V8 |
BUY
|
- |
17.4KNew |
$1.15M - $1.3M
|
17.4K
$1.25M
|
|
|
Jan 12, 2026
Q4 2025
|
Avanza Fonder Ab
Stockholm, V7 |
BUY
|
- |
3.6KNew |
$237K - $269K
|
3.6K
$257K
|
|
|
Jan 05, 2026
Q4 2025
|
Park Avenue Securities LLC
|
BUY
|
- |
3.57KNew |
$235K - $267K
|
3.57K
$256K
|
|
|
Jan 07, 2026
Q4 2025
|
Everhart Financial Group, Inc.
|
BUY
|
- |
3.47KNew |
$228K - $259K
|
3.47K
$248K
|
|
|
Jan 14, 2026
Q4 2025
|
Exchange Traded Concepts, LLC
|
BUY
|
- |
3.02K+ 16.73% |
$199K - $226K
|
21.1K
$1.51M
|
|
|
Jan 13, 2026
Q4 2025
|
Norden Group LLC
Provo, UT |
BUY
|
- |
2.94KNew |
$193K - $219K
|
2.94K
$210K
|
|
|
Jan 08, 2026
Q4 2025
|
Wealth Enhancement Advisory Services, LLC
|
BUY
|
- |
817+ 10.98% |
$53.8K - $61K
|
8.26K
$591K
|
|
|
Jan 02, 2026
Q4 2025
|
Gamma Investing LLC
Foster City, CA |
BUY
|
- |
392+ 29.23% |
$25.8K - $29.3K
|
1.73K
$124K
|
|
|
Jan 13, 2026
Q4 2025
|
Core Cap Advisors, LLC
Southfield, MI |
BUY
|
- |
325+ 722.22% |
$21.4K - $24.3K
|
370
$26.5K
|
|
|
Jan 08, 2026
Q4 2025
|
Wedmont Private Capital
|
BUY
|
- |
173+ 3.23% |
$11.4K - $12.9K
|
5.54K
$396K
|
|
|
Jan 08, 2026
Q4 2025
|
Versant Capital Management, Inc
|
BUY
|
- |
31+ 2.12% |
$2.04K - $2.32K
|
1.5K
$107K
|
|
|
Jan 15, 2026
Q4 2025
|
Frank, Rimerman Advisors LLC
Palo Alto, CA |
BUY
|
- |
16+ 0.28% |
$1.05K - $1.19K
|
5.78K
$414K
|
|
|
Jan 16, 2026
Q4 2025
|
Marquette Asset Management, LLC
|
BUY
|
- |
7New |
$461 - $523
|
7
$501
|
|
|
Jan 07, 2026
Q4 2025
|
Massmutual Trust CO Fsb
|
BUY
|
- |
2+ 2.25% |
$132 - $149
|
91
$6.51K
|
|
|
Jan 15, 2026
Q4 2025
|
Nisa Investment Advisors, LLC
|
BUY
|
- |
1New |
$65.8 - $74.7
|
1
$71.6
|
|
| Q3 2025 | |||||||
|
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
|
Summit Partners Public Asset Management, LLC
Boston, MA |
BUY
|
CALL |
599KNew |
$23.9M - $39.2M
|
599K
$42.9M
|
|
|
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
|
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
|
|
|
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
|
|