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Kiniksa Pharmaceuticals International (KNSA) Institutional Ownership

Kiniksa Pharmaceuticals International logo
$33.49 -0.01 (-0.03%)
Closing price 08/29/2025 04:00 PM Eastern
Extended Trading
$33.50 +0.01 (+0.03%)
As of 08/29/2025 06:42 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.
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Institutional Ownership Changes (13F Filings) for Kiniksa Pharmaceuticals International (NASDAQ:KNSA)

Current
Institutional Ownership
Percentage
53.95%
Number of
Institutional Buyers
(last 12 months)
122
Total
Institutional Inflows
(last 12 months)
$338.37M
Number of
Institutional Sellers
(last 12 months)
72
Total
Institutional Outflows
(last 12 months)
$226.31M
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KNSA Institutional Buying and Selling by Quarter

Kiniksa Pharmaceuticals International Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/18/2025 Hudson Bay Capital Management LP70,780$1.96M0.0%-64.6%0.096%
8/15/2025 Tower Research Capital LLC TRC 25,275$699K0.0%+1,539.1%0.034%
8/15/2025 Soleus Capital Management L.P.254,689$7.05M0.5%-45.8%0.344%
8/15/2025 Rubric Capital Management LP3,909,806$108.18M1.6%+15.6%5.276%
8/15/2025 Lazard Asset Management LLC15,181$420K0.0%+428.8%0.020%
8/15/2025 Hudson Bay Capital Management LP70,780$1.96M0.0%-64.6%0.096%
8/15/2025 Engineers Gate Manager LP59,275$1.64M0.0%N/A0.080%
8/15/2025 Cubist Systematic Strategies LLC657,475$18.19M0.1%+213.2%0.887%
8/15/2025 BNP Paribas Financial Markets425,947$11.79M0.0%+88.9%0.575%
8/15/2025 Braidwell LP1,102,580$30.51M1.0%-43.8%1.488%
8/15/2025 Bank of America Corp DE272,629$7.54M0.0%+13.8%0.368%
8/15/2025 Ameriprise Financial Inc.32,257$893K0.0%-13.5%0.044%
8/15/2025 AQR Capital Management LLC398,232$11.02M0.0%-19.0%0.537%
8/14/2025 PDT Partners LLC102,886$2.85M0.2%+121.7%0.139%
8/14/2025 California State Teachers Retirement System31,498$872K0.0%-8.2%0.043%
8/14/2025 Raymond James Financial Inc.84,915$2.35M0.0%-18.1%0.115%
8/14/2025 Squarepoint Ops LLC416,572$11.53M0.0%+186.2%0.562%
8/14/2025 Sei Investments Co.101,496$2.81M0.0%+140.6%0.137%
8/14/2025 Nebula Research & Development LLC69,884$1.93M0.2%+82.4%0.094%
8/14/2025 Qube Research & Technologies Ltd888,364$24.58M0.0%+277.8%1.199%
8/14/2025 Cerity Partners LLC41,904$1.16M0.0%+2.9%0.057%
8/13/2025 Jump Financial LLC226,038$6.25M0.1%N/A0.305%
8/13/2025 Marshall Wace LLP76,347$2.11M0.0%N/A0.103%
8/13/2025 Baird Financial Group Inc.55,312$1.53M0.0%N/A0.075%
8/13/2025 Walleye Capital LLC119,885$3.32M0.0%+39.1%0.162%
8/13/2025 First Trust Advisors LP28,438$787K0.0%N/A0.038%
8/13/2025 EverSource Wealth Advisors LLC911$25K0.0%+140.4%0.001%
8/13/2025 Invesco Ltd.20,289$561K0.0%-39.4%0.027%
8/13/2025 Arrowstreet Capital Limited Partnership735,417$20.35M0.0%N/A0.992%
8/13/2025 Quantbot Technologies LP1,565$43K0.0%N/A0.002%
8/13/2025 Fisher Asset Management LLC102,259$2.83M0.0%-29.1%0.138%
8/13/2025 Virtus Investment Advisers LLC16,026$443K0.1%-10.1%0.022%
8/13/2025 Quadrature Capital Ltd10,440$289K0.0%N/A0.014%
8/13/2025 Advantage Alpha Capital Partners LP11,020$305K0.1%-19.0%0.015%
8/13/2025 Russell Investments Group Ltd.61,095$1.71M0.0%-26.5%0.082%
8/12/2025 Rhumbline Advisers7,286$202K0.0%-88.4%0.010%
8/12/2025 AXQ Capital LP10,455$289K0.1%N/A0.014%
8/12/2025 Franklin Resources Inc.108,574$3.00M0.0%+62.2%0.147%
8/12/2025 Legal & General Group Plc30,858$854K0.0%-22.7%0.042%
8/12/2025 Hillsdale Investment Management Inc.200,574$5.55M0.2%N/A0.271%
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8/12/2025 Swiss National Bank64,600$1.79M0.0%-10.2%0.087%
8/12/2025 Catalyst Funds Management Pty Ltd17,800$493K0.1%N/A0.024%
8/11/2025 Universal Beteiligungs und Servicegesellschaft mbH9,140$253K0.0%N/A0.012%
8/8/2025 Creative Planning12,942$358K0.0%N/A0.018%
8/8/2025 SG Americas Securities LLC134,404$3.72M0.0%+1,746.7%0.184%
8/8/2025 Geode Capital Management LLC50,942$1.41M0.0%-89.9%0.070%
8/8/2025 PNC Financial Services Group Inc.3,488$97K0.0%-23.2%0.005%
8/7/2025 Acadian Asset Management LLC1,267,989$35.07M0.1%+22.6%1.738%
8/7/2025 Sound View Wealth Advisors Group LLC12,505$346K0.0%-14.7%0.017%
8/7/2025 Connor Clark & Lunn Investment Management Ltd.623,689$17.26M0.1%+56.0%0.855%
8/7/2025 Los Angeles Capital Management LLC8,037$222K0.0%-82.0%0.011%
8/6/2025 Fox Run Management L.L.C.35,743$989K0.2%+214.9%0.049%
8/6/2025 Savant Capital LLC14,385$398K0.0%N/A0.020%
8/1/2025 Peregrine Capital Management LLC288,636$7.99M0.2%-6.6%0.396%
8/1/2025 Teacher Retirement System of Texas9,144$253K0.0%-9.1%0.013%
8/1/2025 Y Intercept Hong Kong Ltd59,564$1.65M0.0%N/A0.082%
7/31/2025 Linden Thomas Advisory Services LLC116,115$3.21M0.4%-1.0%0.159%
7/31/2025 Asset Management One Co. Ltd.13,470$373K0.0%+624.2%0.018%
7/29/2025 Cannon Global Investment Management LLC17,300$479K1.0%N/A0.024%
7/29/2025 Nordea Investment Management AB130,160$3.58M0.0%+1.6%0.178%
7/25/2025 Allspring Global Investments Holdings LLC18,941$524K0.0%-61.1%0.026%
7/25/2025 CWM LLC20,715$573K0.0%-6.3%0.028%
7/23/2025 KLP Kapitalforvaltning AS6,600$183K0.0%-17.5%0.009%
7/22/2025 Knights of Columbus Asset Advisors LLC32,622$903K0.1%-47.9%0.045%
7/18/2025 AMI Asset Management Corp43,141$1.19M0.1%-44.5%0.059%
7/18/2025 Robeco Institutional Asset Management B.V.8,436$233K0.0%N/A0.012%
7/14/2025 Toth Financial Advisory Corp10,700$296K0.0%N/A0.015%
7/10/2025 Wealth Enhancement Advisory Services LLC15,410$430K0.0%+13.6%0.021%
7/9/2025 Pallas Capital Advisors LLC8,535$236K0.0%N/A0.012%
6/27/2025 Goldman Sachs Group Inc.156,328$3.47M0.0%-26.0%0.214%
6/18/2025 Voya Investment Management LLC30,866$686K0.0%+54.4%0.042%
5/29/2025 Rhumbline Advisers62,700$1.39M0.0%+6.4%0.086%
5/28/2025 Strs Ohio26,800$595K0.0%N/A0.037%
5/21/2025 Acadian Asset Management LLC1,034,321$22.96M0.1%+170.3%1.417%
5/19/2025 Jane Street Group LLC129,291$2.87M0.0%-31.8%0.177%
5/16/2025 Fred Alger Management LLC21,823$485K0.0%N/A0.030%
5/16/2025 Goldman Sachs Group Inc.156,328$3.47M0.0%-26.0%0.214%
5/16/2025 Parkman Healthcare Partners LLC762,621$16.94M2.0%-0.4%1.045%
5/16/2025 Millennium Management LLC847,124$18.82M0.0%+8.7%1.161%
5/16/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.22,843$507K0.0%+4.6%0.031%
5/16/2025 Granahan Investment Management LLC361,894$8.04M0.4%-21.9%0.496%
5/16/2025 AQR Capital Management LLC491,761$10.92M0.0%+149.1%0.674%
5/16/2025 Amundi15,972$348K0.0%N/A0.022%
5/16/2025 ADAR1 Capital Management LLC41,412$920K0.2%-75.1%0.057%
5/15/2025 Vestal Point Capital LP169,864$3.77M0.3%N/A0.233%
5/15/2025 Birchview Capital LP30,006$666K0.6%N/A0.041%
5/15/2025 PDT Partners LLC46,407$1.03M0.1%-28.5%0.064%
5/15/2025 Braidwell LP1,962,909$43.60M1.5%-43.1%2.690%
5/15/2025 Cubist Systematic Strategies LLC209,939$4.66M0.0%N/A0.288%
5/15/2025Kodai Capital Management LP185,364$4.12M0.2%N/A0.254%
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While Wall Street focused on Tesla’s earnings, Elon Musk was quietly building a supercomputer so powerful it could transform warfare, robotics, and the global economy. But you don’t need to buy Tesla or wait for xAI to IPO to benefit. One overlooked public company is supplying the critical tech behind Musk’s AI push — and it trades for a fraction of Nvidia’s price. Hedge funds are already loading up, but most investors haven’t noticed yet.tc pixel

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5/15/2025 Driehaus Capital Management LLC611,278$13.58M0.1%-0.4%0.838%
5/15/2025 State of Wyoming17,064$379K0.1%+15.3%0.023%
5/15/2025 Trexquant Investment LP236,483$5.25M0.1%+192.5%0.324%
5/14/2025 Ieq Capital LLC43,625$969K0.0%N/A0.060%
5/14/2025 Corebridge Financial Inc.15,979$355K0.0%+3.6%0.022%
5/14/2025 MetLife Investment Management LLC22,695$504K0.0%-1.7%0.031%
5/14/2025 Walleye Capital LLC86,203$1.92M0.0%N/A0.119%
5/14/2025 Advantage Alpha Capital Partners LP13,597$302K0.1%+52.9%0.019%
5/14/2025 Martingale Asset Management L P50,000$1.11M0.0%+1.3%0.069%
5/14/2025 Hsbc Holdings PLC12,676$280K0.0%-3.3%0.017%
(Data available from 1/1/2016 forward)

KNSA Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of KNSA shares?

During the previous two years, 180 institutional investors and hedge funds held shares of Kiniksa Pharmaceuticals International. The most heavily invested institutionals were Rubric Capital Management LP ($108.18M), Vanguard Group Inc. ($74.61M), Fairmount Funds Management LLC ($43.40M), Hhlr Advisors LTD. ($39.55M), Acadian Asset Management LLC ($35.07M), Braidwell LP ($30.51M), and Qube Research & Technologies Ltd ($24.58M).Learn more on Kiniksa Pharmaceuticals International's institutional investors.

What percentage of Kiniksa Pharmaceuticals International's stock is owned by institutional investors?

53.95% of Kiniksa Pharmaceuticals International's stock is owned by institutional investors. Learn more on KNSA's institutional investor holdings.

Which institutional investors have been buying Kiniksa Pharmaceuticals International's stock?

Of the 151 institutional investors that purchased Kiniksa Pharmaceuticals International's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Hhlr Advisors LTD. ($3.14M), Braidwell LP ($1.39M), Acadian Asset Management LLC ($1.19M), Nuveen LLC ($765.05K), Rubric Capital Management LP ($749.66K), Arrowstreet Capital Limited Partnership ($735.42K), and Millennium Management LLC ($713.14K).

How much institutional buying is happening at Kiniksa Pharmaceuticals International?

Institutional investors have bought a total of 13,984,417 shares in the last 24 months. This purchase volume represents approximately $338.37M in transactions.

Which of Kiniksa Pharmaceuticals International's major shareholders have been selling company stock?

Of the 72 institutional investors that sold Kiniksa Pharmaceuticals International's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Braidwell LP ($2.35M), Hhlr Advisors LTD. ($1.56M), Fairmount Funds Management LLC ($1.01M), Geode Capital Management LLC ($820.43K), State Street Corp ($713.24K), ADAR1 Capital Management LLC ($395.26K), and Hudson Bay Capital Management LP ($258.44K).

How much institutional selling is happening at Kiniksa Pharmaceuticals International?

Institutional investors have sold a total of 9,576,189 shares in the last 24 months. This volume of shares sold represents approximately $226.31M in transactions.


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This page (NASDAQ:KNSA) was last updated on 9/1/2025 by MarketBeat.com Staff
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