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Ionis Pharmaceuticals (IONS) Institutional Ownership

Ionis Pharmaceuticals logo
$30.71 +0.90 (+3.02%)
As of 04/30/2025 04:00 PM Eastern
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Institutional Ownership Changes (13F Filings) for Ionis Pharmaceuticals (NASDAQ:IONS)

Current
Institutional Ownership
Percentage
93.86%
Number of
Institutional Buyers
(last 12 months)
153
Total
Institutional Inflows
(last 12 months)
$540.45M
Number of
Institutional Sellers
(last 12 months)
102
Total
Institutional Outflows
(last 12 months)
$1.25B
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IONS Institutional Buying and Selling by Quarter

Ionis Pharmaceuticals Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
4/30/2025Significant Wealth Partners LLC13,605$410K0.2%+24.8%0.009%
4/30/2025Brown Advisory Inc.12,026$363K0.0%-5.5%0.008%
4/30/2025China Universal Asset Management Co. Ltd.31,886$962K0.1%-4.8%0.020%
4/29/2025 Envestnet Asset Management Inc.15,039$454K0.0%-71.5%0.009%
4/29/2025 GF Fund Management CO. LTD.4,042$122K0.0%+21.9%0.003%
4/28/2025 Principal Financial Group Inc.10,447$315K0.0%-23.3%0.007%
4/28/2025 Teacher Retirement System of Texas500,451$15.10M0.1%+660.7%0.315%
4/28/2025 DAVENPORT & Co LLC56,393$1.70M0.0%-10.1%0.035%
4/25/2025 Sovran Advisors LLC328,904$9.34M1.2%+91.4%0.207%
4/25/2025 Sumitomo Mitsui Trust Group Inc.142,433$4.30M0.0%-9.1%0.090%
4/22/2025 Moisand Fitzgerald Tamayo LLC5,000$151K0.0%N/A0.003%
4/17/2025 Exchange Traded Concepts LLC3,244$98K0.0%+1,722.5%0.002%
4/15/2025 Fifth Third Bancorp9,989$301K0.0%+4.8%0.006%
4/15/2025 Handelsbanken Fonder AB43,211$1.30M0.0%-1.4%0.027%
4/15/2025 SG Americas Securities LLC20,050$605K0.0%-16.2%0.013%
4/8/2025 Rhumbline Advisers188,216$5.68M0.0%-1.9%0.118%
4/7/2025 GAMMA Investing LLC28,993$961K0.0%+3,786.5%0.018%
3/18/2025California State Teachers Retirement System133,902$4.68M0.0%+6.1%0.084%
2/19/2025 GF Fund Management CO. LTD.3,315$116K0.0%N/A0.002%
2/19/2025Public Employees Retirement System of Ohio53,748$1.88M0.0%-5.4%0.034%
2/17/2025UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC619,641$21.66M0.0%-40.8%0.392%
2/17/2025Voloridge Investment Management LLC316,943$11.08M0.0%-16.7%0.201%
2/17/2025Woodline Partners LP107,610$3.76M0.0%N/A0.068%
2/17/2025Vestal Point Capital LP595,000$20.80M1.2%N/A0.377%
2/17/2025Two Sigma Advisers LP1,349,211$47.17M0.1%+1.3%0.854%
2/17/2025Two Sigma Investments LP921,439$32.21M0.1%+0.3%0.584%
2/17/2025Tidal Investments LLC17,407$609K0.0%-7.9%0.011%
2/17/2025Teza Capital Management LLC8,525$298K0.0%-19.6%0.005%
2/17/2025Tanaka Capital Management Inc.6,892$241K0.6%-52.5%0.004%
2/17/2025Tema Etfs LLC56,844$1.99M0.8%N/A0.036%
2/17/2025Silvercrest Asset Management Group LLC6,617$231K0.0%N/A0.004%
2/17/2025Rafferty Asset Management LLC237,337$8.30M0.0%+19.4%0.150%
2/17/2025Raiffeisen Bank International AG1,754$62K0.0%N/A0.001%
2/17/2025ProShare Advisors LLC7,480$262K0.0%-13.4%0.005%
2/17/2025Nuveen Asset Management LLC290,954$10.17M0.0%-96.9%0.184%
2/17/2025OCONNOR A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS LLC 60,580$2.12M0.2%+63.9%0.038%
2/17/2025Orbimed Advisors LLC2,817,347$98.49M2.2%+21.2%1.784%
2/17/2025Millennium Management LLC774,215$27.07M0.0%+79.7%0.490%
2/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.9,450$330K0.0%+20.8%0.006%
2/17/2025J. Goldman & Co LP607,499$21.24M0.6%+17.1%0.385%
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2/17/2025Jacobs Levy Equity Management Inc.281,813$9.85M0.0%-56.7%0.178%
2/17/2025Janus Henderson Group PLC63,877$2.23M0.0%+8.3%0.040%
2/17/2025Hudson Bay Capital Management LP821,200$28.71M0.1%+7.1%0.520%
2/17/2025Focus Partners Wealth7,555$282K0.0%+32.6%0.005%
2/17/2025Ensign Peak Advisors Inc53,320$1.86M0.0%-23.7%0.034%
2/17/2025D. E. Shaw & Co. Inc.23,123$808K0.0%-84.1%0.015%
2/17/2025Driehaus Capital Management LLC180,002$6.29M0.1%-21.7%0.114%
2/17/2025Deep Track Capital LP1,933,928$67.61M2.5%-12.1%1.225%
2/17/2025Caption Management LLC5,417$189K0.0%-93.5%0.003%
2/17/2025Brevan Howard Capital Management LP21,366$747K0.0%-25.0%0.014%
2/17/2025Bridgefront Capital LLC21,802$762K0.3%+94.7%0.014%
2/17/2025Bellevue Group AG7,868,700$275.09M5.3%-0.1%4.983%
2/17/2025Alyeska Investment Group L.P.150,000$5.24M0.0%-11.2%0.095%
2/17/2025Allostery Investments LP65,000$2.27M2.4%N/A0.041%
2/14/2025BlueCrest Capital Management Ltd26,200$916K0.0%N/A0.017%
2/14/2025Comerica Bank7,393$258K0.0%-30.4%0.005%
2/14/2025PDT Partners LLC28,994$1.01M0.1%+116.4%0.018%
2/14/2025Schonfeld Strategic Advisors LLC371,381$12.98M0.1%+2.3%0.235%
2/14/2025Northern Trust Corp840,271$29.38M0.0%+13.1%0.532%
2/14/2025The Manufacturers Life Insurance Company 286,279$10.01M0.0%-7.3%0.181%
2/14/2025Quarry LP6,000$210K0.0%N/A0.004%
2/14/2025Aquatic Capital Management LLC230,016$8.04M0.2%N/A0.146%
2/14/2025Susquehanna Fundamental Investments LLC213,015$7.45M0.1%N/A0.135%
2/14/2025Ghisallo Capital Management LLC100,000$3.50M0.2%-75.0%0.063%
2/14/2025Virtus ETF Advisers LLC9,448$330K0.1%+18.0%0.006%
2/14/2025Adage Capital Partners GP L.L.C.275,000$9.61M0.0%-45.0%0.174%
2/14/2025Syon Capital LLC10,119$354K0.0%N/A0.006%
2/14/2025T. Rowe Price Investment Management Inc.14,169,199$495.36M0.3%+0.0%8.974%
2/14/2025Price T Rowe Associates Inc. MD3,826,939$133.79M0.0%-9.1%2.424%
2/14/2025Eversept Partners LP214,952$7.52M0.7%-54.4%0.136%
2/14/2025Hsbc Holdings PLC83,055$2.93M0.0%N/A0.053%
2/14/2025Stifel Financial Corp211,493$7.39M0.0%+15.9%0.134%
2/14/2025Tower Research Capital LLC TRC14,157$495K0.0%+229.2%0.009%
2/14/2025Natixis16,626$581K0.0%N/A0.011%
2/14/2025Capital World Investors11,465,413$400.83M0.1%+46.5%7.261%
2/14/2025Commerce Bank13,584$475K0.0%-82.5%0.009%
2/13/2025CANADA LIFE ASSURANCE Co39,214$1.37M0.0%-1.6%0.025%
2/13/2025Canada Pension Plan Investment Board19,900$696K0.0%+77.7%0.013%
2/13/2025Marshall Wace LLP812,306$28.40M0.0%-57.7%0.514%
2/13/2025Jump Financial LLC39,737$1.39M0.0%-98.0%0.025%
2/13/2025Guggenheim Capital LLC35,373$1.24M0.0%-4.8%0.022%
2/13/2025XTX Topco Ltd25,362$887K0.1%+50.9%0.016%
2/13/2025Mariner LLC27,661$967K0.0%+19.6%0.018%
2/13/2025Granite Investment Partners LLC73,866$2.58M0.1%-13.9%0.047%
2/13/2025Kennedy Capital Management LLC223,278$7.81M0.2%+37.8%0.141%
2/13/2025Treasurer of the State of North Carolina68,803$2.41M0.0%+0.6%0.044%
2/13/2025Raymond James Financial Inc.105,619$3.69M0.0%N/A0.067%
2/13/2025Renaissance Technologies LLC205,514$7.19M0.0%+7.9%0.130%
2/13/2025Legal & General Group Plc168,080$5.88M0.0%-1.9%0.106%
2/13/2025 Envestnet Asset Management Inc.52,688$1.84M0.0%-10.4%0.033%
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2/13/2025Rhenman & Partners Asset Management AB212,500$7.43M0.8%+9.0%0.135%
2/13/2025Orion Investment Co216,000$7.55M3.0%-1.2%0.137%
2/12/2025Landscape Capital Management L.L.C.10,270$359K0.0%-59.6%0.007%
2/12/2025Annis Gardner Whiting Capital Advisors LLC10,736$375K0.1%+8.1%0.007%
2/12/2025Huntington National Bank951$33K0.0%+193.5%0.001%
2/12/2025Groupama Asset Managment1,017,191$35.56M0.3%+11.0%0.644%
2/12/2025Trexquant Investment LP84,913$2.97M0.0%-35.1%0.054%
2/12/2025Tweedy Browne Co LLC3,248,863$113.58M7.7%-6.0%2.058%
2/12/2025Geode Capital Management LLC2,687,248$93.98M0.0%+0.7%1.702%
2/12/2025Nicollet Investment Management Inc.19,786$692K0.2%-3.0%0.013%
(Data available from 1/1/2016 forward)

IONS Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of IONS shares?

During the previous two years, 295 institutional investors and hedge funds held shares of Ionis Pharmaceuticals. The most heavily invested institutionals were FMR LLC ($975.19M), Vanguard Group Inc. ($575.88M), T. Rowe Price Investment Management Inc. ($495.36M), Capital World Investors ($400.83M), Bellevue Group AG ($275.09M), Wellington Management Group LLP ($233.57M), and Price T Rowe Associates Inc. MD ($133.79M).Learn more on IONS's institutional investors.

What percentage of Ionis Pharmaceuticals stock is owned by institutional investors?

93.86% of Ionis Pharmaceuticals stock is owned by institutional investors. Learn more on IONS's institutional investor holdings.

Which institutional investors have been buying Ionis Pharmaceuticals stock?

Of the 225 institutional investors that purchased Ionis Pharmaceuticals stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Capital World Investors ($4.48M), Wellington Management Group LLP ($3.70M), Norges Bank ($2.89M), BVF Inc. IL ($1.72M), Vanguard Group Inc. ($1.42M), Adage Capital Partners GP L.L.C. ($1.07M), and Pictet Asset Management SA ($739.46K).

How much institutional buying is happening at Ionis Pharmaceuticals?

Institutional investors have bought a total of 29,734,072 shares in the last 24 months. This purchase volume represents approximately $1.21B in transactions.

Which Ionis Pharmaceuticals major shareholders have been selling company stock?

Of the 155 institutional investors that sold Ionis Pharmaceuticals stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Nuveen Asset Management LLC ($9.01M), Schroder Investment Management Group ($4.83M), New York State Common Retirement Fund ($3.53M), Clearbridge Investments LLC ($3.35M), Jump Financial LLC ($2.02M), Artisan Partners Limited Partnership ($1.99M), and BVF Inc. IL ($1.58M).

How much institutional selling is happening at Ionis Pharmaceuticals?

Institutional investors have sold a total of 43,579,325 shares in the last 24 months. This volume of shares sold represents approximately $1.71B in transactions.


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This page (NASDAQ:IONS) was last updated on 5/1/2025 by MarketBeat.com Staff
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