Latest Institutional Sells of Ionis Pharmaceuticals Inc (IONS)
This list provides information on the latest institutional transactions involving Ionis Pharmaceuticals Inc (IONS) stock that were sells. 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 sale has occurred.
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Aug 14, 2025
Q2 2025
|
Wellington Management Group LLP
Boston, MA |
SELL
|
- |
-2.07M- 24.6% |
$52.8M - $82.8M
|
6.35M
$261M
|
|
|
Aug 14, 2025
Q2 2025
|
Ken Griffin
Citadel Advisors LLC | Chicago, Il
|
SELL
|
- |
-1.99M- 57.04% |
$50.6M - $79.4M
|
1.49M
$61.6M
|
|
|
Aug 13, 2025
Q2 2025
|
Invesco Ltd.
Atlanta, GA |
SELL
|
- |
-619K- 70.71% |
$15.8M - $24.7M
|
256K
$10.6M
|
|
|
Aug 14, 2025
Q2 2025
|
Ubs Group Ag
|
SELL
|
- |
-361K- 19.11% |
$9.22M - $14.5M
|
1.53M
$63M
|
|
|
Aug 18, 2025
Q2 2025
|
Nomura Holdings Inc
Tokyo, M0 |
SELL
|
- |
-338K- 91.32% |
$8.63M - $13.5M
|
32.2K
$1.32M
|
|
|
Aug 14, 2025
Q2 2025
|
State Street Corp
Boston, MA |
SELL
|
- |
-315K- 6.5% |
$8.03M - $12.6M
|
4.53M
$187M
|
|
|
Aug 14, 2025
Q2 2025
|
Hudson Bay Capital Management LP
Greenwich, CT |
SELL
|
- |
-300K- 28.56% |
$7.65M - $12M
|
750K
$30.9M
|
|
|
Aug 05, 2025
Q2 2025
|
Bank Of Montreal
Toronto, A6 |
SELL
|
- |
-300K- 38.26% |
$7.64M - $12M
|
483K
$19.9M
|
|
|
Aug 08, 2025
Q2 2025
|
Candriam S.C.A.
|
SELL
|
- |
-269K- 27.07% |
$6.86M - $10.8M
|
725K
$29.8M
|
|
|
Aug 14, 2025
Q2 2025
|
Macquarie Group LTD
Australia, C3 |
SELL
|
- |
-233K- 13.98% |
$5.95M - $9.32M
|
1.43M
$59.1M
|
|
|
Aug 14, 2025
Q2 2025
|
Squarepoint Ops LLC
New York, NY |
SELL
|
- |
-171K- 55.99% |
$4.36M - $6.84M
|
134K
$5.53M
|
|
|
Aug 14, 2025
Q2 2025
|
J. Goldman & CO LP
New York, NY |
SELL
|
- |
-160K- 52.02% |
$4.08M - $6.4M
|
148K
$6.08M
|
|
|
Aug 14, 2025
Q2 2025
|
Price T Rowe Associates Inc
Baltimore, MD |
SELL
|
- |
-139K- 4.26% |
$3.54M - $5.56M
|
3.13M
$129M
|
|
|
Aug 14, 2025
Q2 2025
|
T. Rowe Price Investment Management, Inc.
Baltimore, MD |
SELL
|
- |
-127K- 0.78% |
$3.23M - $5.07M
|
16M
$661M
|
|
|
Aug 04, 2025
Q2 2025
|
Pinnacle Associates LTD
|
SELL
|
- |
-114K- 18.73% |
$2.91M - $4.56M
|
495K
$20.4M
|
|
|
Aug 14, 2025
Q2 2025
|
Schonfeld Strategic Advisors LLC
New York, NY |
SELL
|
- |
-111K- 19.84% |
$2.84M - $4.45M
|
449K
$18.5M
|
|
|
Jul 30, 2025
Q2 2025
|
Cathie Wood
Ark Investment Management LLC | St. Petersburg, Fl
|
SELL
|
- |
-100K- 10.02% |
$2.56M - $4.01M
|
900K
$37.1M
|
|
|
Jul 29, 2025
Q2 2025
|
Tweedy Browne Co.
Tweedy, Browne CO LLC | Stamford, Ct
|
SELL
|
- |
-91.6K- 3.07% |
$2.34M - $3.66M
|
2.89M
$119M
|
|
|
Aug 11, 2025
Q2 2025
|
Citigroup Inc
|
SELL
|
- |
-85.5K- 20.05% |
$2.18M - $3.42M
|
341K
$14M
|
|
|
Aug 13, 2025
Q2 2025
|
Jump Financial, LLC
Chicago, IL |
SELL
|
- |
-72.3K- 88.91% |
$1.84M - $2.89M
|
9.02K
$371K
|
|
|
Aug 12, 2025
Q2 2025
|
Nuveen, LLC
Charlotte, NC |
SELL
|
- |
-63.7K- 20.63% |
$1.62M - $2.55M
|
245K
$10.1M
|
|
|
Aug 14, 2025
Q2 2025
|
Alliancebernstein L.P.
New York, NY |
SELL
|
- |
-48.7K- 48.33% |
$1.24M - $1.95M
|
52.1K
$2.14M
|
|
|
Aug 14, 2025
Q2 2025
|
Wells Fargo & Company
San Francisco, CA |
SELL
|
- |
-46.4K- 18.1% |
$1.18M - $1.86M
|
210K
$8.64M
|
|
|
Aug 14, 2025
Q2 2025
|
Pdt Partners, LLC
New York, NY |
SELL
|
- |
-41.7K- 43.4% |
$1.06M - $1.67M
|
54.4K
$2.24M
|
|
|
Jul 24, 2025
Q2 2025
|
Abrdn PLC
|
SELL
|
- |
-39.5K- 8.85% |
$1.01M - $1.58M
|
407K
$16.7M
|
|
|
Aug 14, 2025
Q2 2025
|
Point72 (Difc) LTD
Dubai, C0 |
SELL
|
- |
-33.3K- 80.44% |
$848K - $1.33M
|
8.09K
$333K
|
|
|
Aug 14, 2025
Q2 2025
|
Rafferty Asset Management, LLC
New York, NY |
SELL
|
- |
-31.5K- 17.86% |
$803K - $1.26M
|
145K
$5.96M
|
|
|
Aug 11, 2025
Q2 2025
|
Citigroup Inc
|
SELL
|
CALL |
-30K- 52.17% |
$765K - $1.2M
|
27.5K
$1.13M
|
|
|
Aug 13, 2025
Q2 2025
|
Walleye Capital LLC
Plymouth, MN |
SELL
|
- |
-28.5K- 30.01% |
$727K - $1.14M
|
66.5K
$2.74M
|
|
|
Aug 13, 2025
Q2 2025
|
Capital Fund Management S.A.
Paris, I0 |
SELL
|
- |
-26.8K- 46.19% |
$684K - $1.07M
|
31.2K
$1.29M
|
|
|
Aug 13, 2025
Q2 2025
|
Granite Investment Partners, LLC
|
SELL
|
- |
-25.3K- 36.9% |
$644K - $1.01M
|
43.2K
$1.78M
|
|
|
Aug 05, 2025
Q2 2025
|
Simplex Trading, LLC
|
SELL
|
- |
-24.9K- 38.62% |
$636K - $998K
|
39.6K
$1.63M
|
|
|
Aug 13, 2025
Q2 2025
|
Northern Trust Corp
Chicago, IL |
SELL
|
- |
-20.6K- 2.47% |
$525K - $824K
|
814K
$33.5M
|
|
|
Aug 13, 2025
Q2 2025
|
Kennedy Capital Management, Inc.
St Louis, MO |
SELL
|
- |
-18.4K- 12.22% |
$469K - $735K
|
132K
$5.44M
|
|
|
Aug 14, 2025
Q2 2025
|
Summit Tx Capital, L.P.
Fort Worth, TX |
SELL
|
- |
-18K- 51.15% |
$458K - $718K
|
17.1K
$706K
|
|
|
Aug 14, 2025
Q2 2025
|
Exome Asset Management LLC
New York, NY |
SELL
|
- |
-14.5K- 10.69% |
$370K - $580K
|
121K
$4.99M
|
|
|
Aug 14, 2025
Q2 2025
|
State Of Wisconsin Investment Board
Madison, WI |
SELL
|
- |
-11.6K- 10.73% |
$296K - $465K
|
96.7K
$3.98M
|
|
|
Aug 13, 2025
Q2 2025
|
Walleye Capital LLC
Plymouth, MN |
SELL
|
PUT |
-11.1K- 71.61% |
$283K - $444K
|
4.4K
$181K
|
|
|
Aug 13, 2025
Q2 2025
|
Pictet Asset Management Holding Sa
Carouge, V8 |
SELL
|
- |
-9.91K- 1.6% |
$253K - $396K
|
609K
$25.1M
|
|
|
Aug 14, 2025
Q2 2025
|
Ubs Oconnor LLC
Chicago, IL |
SELL
|
- |
-9.53K- 10.5% |
$243K - $381K
|
81.3K
$3.35M
|
|
|
Aug 14, 2025
Q2 2025
|
Tower Research Capital LLC (Trc)
New York, NY |
SELL
|
- |
-8.29K- 83.99% |
$212K - $332K
|
1.58K
$65.1K
|
|
|
Jul 09, 2025
Q2 2025
|
Sovran Advisors, LLC
San Diego, CA |
SELL
|
- |
-6.99K- 2.13% |
$178K - $280K
|
322K
$13.3M
|
|
|
Aug 12, 2025
Q2 2025
|
Rhumbline Advisers
Boston, MA |
SELL
|
- |
-6.62K- 3.52% |
$169K - $265K
|
182K
$7.48M
|
|
|
Aug 13, 2025
Q2 2025
|
Jones Financial Companies Lllp
|
SELL
|
- |
-6.54K- 47.61% |
$167K - $262K
|
7.2K
$296K
|
|
|
Aug 07, 2025
Q2 2025
|
Profund Advisors LLC
|
SELL
|
- |
-6.03K- 17.28% |
$154K - $241K
|
28.9K
$1.19M
|
|
|
Aug 13, 2025
Q2 2025
|
Walleye Trading LLC
Plymouth, MN |
SELL
|
PUT |
-5.4K- 56.25% |
$138K - $216K
|
4.2K
$173K
|
|
|
Aug 14, 2025
Q2 2025
|
Stifel Financial Corp
St. Louis, MO |
SELL
|
- |
-4.59K- 2.28% |
$117K - $183K
|
196K
$8.09M
|
|
|
Jul 30, 2025
Q2 2025
|
Bleakley Financial Group, LLC
Fairfield, NJ |
SELL
|
- |
-4.16K- 18.65% |
$106K - $166K
|
18.1K
$747K
|
|
|
Aug 14, 2025
Q2 2025
|
Paul Tudor Jones
Tudor Investment Corp Et Al | Stamford, Ct
|
SELL
|
CALL |
-3.8K- 33.04% |
$96.9K - $152K
|
7.7K
$317K
|
|
|
Aug 14, 2025
Q2 2025
|
Teza Capital Management LLC
Chicago, IL |
SELL
|
- |
-3.64K- 35.53% |
$92.9K - $146K
|
6.6K
$272K
|