Ionis Pharmaceuticals Ownership | Who Owns Ionis Pharmaceuticals?


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Ionis Pharmaceuticals Ownership Summary


Ionis Pharmaceuticals is owned by 104.99% institutional investors, 0.77% insiders. Fmr is the largest institutional shareholder, holding 15.04% of IONS shares. Fidelity Growth Compy Commingled Pl S is the top mutual fund, with 6.34% of its assets in Ionis Pharmaceuticals shares.

IONS Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockIonis Pharmaceuticals104.99%0.77%-5.75%
SectorHealthcare Stocks 49.73%8.84%41.43%
IndustryBiotech Stocks 47.04%8.74%44.21%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Fmr21.89M15.04%$1.04B
Vanguard group13.85M9.51%$659.89M
T. rowe price investment management12.64M8.68%$602.41M
Blackrock10.32M7.09%$491.90M
Bellevue group8.26M5.68%$393.69M
Wellington management group llp6.57M4.51%$313.07M
State street4.19M2.88%$199.72M
Price t rowe associates inc /md/3.93M2.70%$187.51M
Tweedy, browne3.45M2.37%$164.65M
Bvf inc/il3.19M2.19%$151.86M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Tweedy, browne3.45M7.57%$164.65M
Bellevue group8.26M6.40%$393.69M
Bvf inc/il3.19M4.26%$151.86M
Orion investment218.57K4.15%$10.42M
Sicart associates191.52K3.50%$9.13M
Sector gamma as170.00K3.03%$8.10M
Great point partners330.00K3.01%$15.73M
Privium fund management b.v.247.27K2.85%$11.16M
Deep track capital, lp2.00M2.85%$95.32M
Cutter capital management, lp160.17K2.30%$7.63M

Top Buyers

HolderShares% AssetsChange
Capital world investors2.25M0.02%1.41M
Artisan partners limited partnership1.67M0.12%1.25M
Norges bank1.02M0.01%1.02M
Wellington management group llp6.57M0.06%873.11K
Bvf inc/il3.19M4.26%757.76K

Top Sellers

HolderShares% AssetsChange
Clearbridge investments2.16M0.08%-2.31M
Pictet asset management sa2.41M0.13%-1.33M
Macquarie group1.87M0.10%-1.33M
Balyasny asset management---1.08M
T. rowe price investment management12.64M0.38%-677.43K

New Positions

HolderShares% AssetsChangeValue
Norges bank1.02M0.01%1.02M$48.58M
Great point partners330.00K3.01%330.00K$15.73M
Logos global management lp300.00K1.15%300.00K$14.30M
Integral health asset management250.00K1.13%250.00K$11.91M
Orion investment218.57K4.15%218.57K$10.42M

Sold Out

HolderChange
Assetmark-1.00
Bokf, na-7.00
Concourse financial group securities-26.00
Corecap advisors-26.00
First pacific financial-29.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Sep 30, 20243780.27%156,005,8968.92%1041.08%1823.41%106-17.83%
Jun 30, 2024375-2.60%143,227,4871.66%981.02%1762.92%1270.79%
Mar 31, 20243851.05%140,888,836-0.88%981.00%171-9.04%1265.88%
Dec 31, 202338117.59%142,138,8862.61%991.06%18838.24%11910.19%
Sep 30, 20233243.18%138,518,2122.21%961.08%1363.03%108-1.82%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Fidelity Growth Compy Commingled Pl S10.00M6.34%287.29K
Fidelity Growth Compy Commingled Pl O9.71M6.16%90.97K
BB Biotech AG Ord7.85M4.98%-360.00K
Fidelity Growth Company Fund7.30M4.63%253.01K
Vanguard Health Care Inv5.73M3.64%1.54M
T. Rowe Price Mid-Cap Growth5.30M3.36%606.80K
T. Rowe Price US Mid-Cap Growth Equity5.30M3.36%603.80K
Vanguard Total Stock Mkt Idx Inv4.48M2.84%-23.41K
Vanguard Small Cap Index3.56M2.25%6.95K
Tweedy, Browne International Value Fund2.59M1.64%-

Recent Insider Transactions


DateNameRoleActivityValue
Nov 12, 2024Swayze Eric EVP ResearchSell$45.28K
Nov 12, 2024Monia Brett P Chief Executive OfficerSell$252.29K
Nov 12, 2024LOSCALZO JOSEPH-Sell$511.43K
Oct 16, 2024Swayze Eric EVP ResearchSell$2.03K
Feb 02, 2024Geary Richard S EVP, Chief Development OfficerSell$99.84K

Insider Transactions Trends


DateBuySell
2024 Q4-4
2024 Q3-6
2024 Q2-9
2024 Q1-33
2023 Q4-21

IONS Ownership FAQ


Who Owns Ionis Pharmaceuticals?

Ionis Pharmaceuticals shareholders are primarily institutional investors at 104.99%, followed by 0.77% insiders and -5.76% retail investors. The average institutional ownership in Ionis Pharmaceuticals's industry, Biotech Stocks , is 47.04%, which Ionis Pharmaceuticals exceeds.

Who owns the most shares of Ionis Pharmaceuticals?

Ionis Pharmaceuticals’s largest shareholders are Fmr (21.89M shares, 15.04%), Vanguard group (13.85M shares, 9.51%), and T. rowe price investment management (12.64M shares, 8.68%). Together, they hold 33.24% of Ionis Pharmaceuticals’s total shares outstanding.

Does Blackrock own Ionis Pharmaceuticals?

Yes, BlackRock owns 7.09% of Ionis Pharmaceuticals, totaling 10.32M shares as of Jun 2024. This represents 0.01% of BlackRock's total assets, with a market value of 491.9M$. In the last quarter, BlackRock increased its holdings by 549.14K shares, a 5.62% change.

Who is Ionis Pharmaceuticals’s biggest shareholder by percentage of total assets invested?

Tweedy, browne is Ionis Pharmaceuticals’s biggest shareholder by percentage of total assets invested, with 7.57% of its assets in 3.45M Ionis Pharmaceuticals shares, valued at 164.65M$.

Who is the top mutual fund holder of Ionis Pharmaceuticals shares?

Fidelity Growth Compy Commingled Pl S is the top mutual fund holder of Ionis Pharmaceuticals shares, with 6.34% of its total shares outstanding invested in 10M Ionis Pharmaceuticals shares.

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