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Kiniksa Pharmaceuticals International (KNSA) Institutional Ownership

Kiniksa Pharmaceuticals International logo
$38.49 +1.02 (+2.72%)
Closing price 10/3/2025 04:00 PM Eastern
Extended Trading
$37.76 -0.73 (-1.91%)
As of 10/3/2025 07:38 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)
123
Total
Institutional Inflows
(last 12 months)
$338.40M
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
9/4/2025Osaic Holdings Inc.1,127$31K0.0%N/A0.002%
8/18/2025Hudson Bay Capital Management LP70,780$1.96M0.0%-64.6%0.096%
8/15/2025Tower Research Capital LLC TRC 25,275$699K0.0%+1,539.1%0.034%
8/15/2025Soleus Capital Management L.P.254,689$7.05M0.5%-45.8%0.344%
8/15/2025Rubric Capital Management LP3,909,806$108.18M1.6%+15.6%5.276%
8/15/2025Lazard Asset Management LLC15,181$420K0.0%+428.8%0.020%
8/15/2025Hudson Bay Capital Management LP70,780$1.96M0.0%-64.6%0.096%
8/15/2025Engineers Gate Manager LP59,275$1.64M0.0%N/A0.080%
8/15/2025Cubist Systematic Strategies LLC657,475$18.19M0.1%+213.2%0.887%
8/15/2025BNP Paribas Financial Markets425,947$11.79M0.0%+88.9%0.575%
8/15/2025Braidwell LP1,102,580$30.51M1.0%-43.8%1.488%
8/15/2025Bank of America Corp DE272,629$7.54M0.0%+13.8%0.368%
8/15/2025Ameriprise Financial Inc.32,257$893K0.0%-13.5%0.044%
8/15/2025AQR Capital Management LLC398,232$11.02M0.0%-19.0%0.537%
8/14/2025PDT Partners LLC102,886$2.85M0.2%+121.7%0.139%
8/14/2025California State Teachers Retirement System31,498$872K0.0%-8.2%0.043%
8/14/2025Raymond James Financial Inc.84,915$2.35M0.0%-18.1%0.115%
8/14/2025Squarepoint Ops LLC416,572$11.53M0.0%+186.2%0.562%
8/14/2025Sei Investments Co.101,496$2.81M0.0%+140.6%0.137%
8/14/2025Nebula Research & Development LLC69,884$1.93M0.2%+82.4%0.094%
8/14/2025Qube Research & Technologies Ltd888,364$24.58M0.0%+277.8%1.199%
8/14/2025Cerity Partners LLC41,904$1.16M0.0%+2.9%0.057%
8/13/2025Jump Financial LLC226,038$6.25M0.1%N/A0.305%
8/13/2025Marshall Wace LLP76,347$2.11M0.0%N/A0.103%
8/13/2025Baird Financial Group Inc.55,312$1.53M0.0%N/A0.075%
8/13/2025Walleye Capital LLC119,885$3.32M0.0%+39.1%0.162%
8/13/2025First Trust Advisors LP28,438$787K0.0%N/A0.038%
8/13/2025EverSource Wealth Advisors LLC911$25K0.0%+140.4%0.001%
8/13/2025Invesco Ltd.20,289$561K0.0%-39.4%0.027%
8/13/2025Arrowstreet Capital Limited Partnership735,417$20.35M0.0%N/A0.992%
8/13/2025Quantbot Technologies LP1,565$43K0.0%N/A0.002%
8/13/2025Fisher Asset Management LLC102,259$2.83M0.0%-29.1%0.138%
8/13/2025Virtus Investment Advisers LLC16,026$443K0.1%-10.1%0.022%
8/13/2025Quadrature Capital Ltd10,440$289K0.0%N/A0.014%
8/13/2025Advantage Alpha Capital Partners LP11,020$305K0.1%-19.0%0.015%
8/13/2025Russell Investments Group Ltd.61,095$1.71M0.0%-26.5%0.082%
8/12/2025Rhumbline Advisers7,286$202K0.0%-88.4%0.010%
8/12/2025AXQ Capital LP10,455$289K0.1%N/A0.014%
8/12/2025Franklin Resources Inc.108,574$3.00M0.0%+62.2%0.147%
8/12/2025Legal & General Group Plc30,858$854K0.0%-22.7%0.042%
8/12/2025Hillsdale Investment Management Inc.200,574$5.55M0.2%N/A0.271%
8/12/2025Swiss National Bank64,600$1.79M0.0%-10.2%0.087%
8/12/2025Catalyst Funds Management Pty Ltd17,800$493K0.1%N/A0.024%
8/11/2025Universal Beteiligungs und Servicegesellschaft mbH9,140$253K0.0%N/A0.012%
8/8/2025Creative Planning12,942$358K0.0%N/A0.018%
8/8/2025SG Americas Securities LLC134,404$3.72M0.0%+1,746.7%0.184%
8/8/2025Geode Capital Management LLC50,942$1.41M0.0%-89.9%0.070%
8/8/2025PNC Financial Services Group Inc.3,488$97K0.0%-23.2%0.005%
8/7/2025Acadian Asset Management LLC1,267,989$35.07M0.1%+22.6%1.738%
8/7/2025Sound View Wealth Advisors Group LLC12,505$346K0.0%-14.7%0.017%
8/7/2025Connor Clark & Lunn Investment Management Ltd.623,689$17.26M0.1%+56.0%0.855%
8/7/2025Los Angeles Capital Management LLC8,037$222K0.0%-82.0%0.011%
8/6/2025Fox Run Management L.L.C.35,743$989K0.2%+214.9%0.049%
8/6/2025Savant Capital LLC14,385$398K0.0%N/A0.020%
8/1/2025Peregrine Capital Management LLC288,636$7.99M0.2%-6.6%0.396%
8/1/2025Teacher Retirement System of Texas9,144$253K0.0%-9.1%0.013%
8/1/2025Y Intercept Hong Kong Ltd59,564$1.65M0.0%N/A0.082%
7/31/2025Linden Thomas Advisory Services LLC116,115$3.21M0.4%-1.0%0.159%
7/31/2025Asset Management One Co. Ltd.13,470$373K0.0%+624.2%0.018%
7/29/2025Cannon Global Investment Management LLC17,300$479K1.0%N/A0.024%
7/29/2025Nordea Investment Management AB130,160$3.58M0.0%+1.6%0.178%
7/25/2025Allspring Global Investments Holdings LLC18,941$524K0.0%-61.1%0.026%
7/25/2025CWM LLC20,715$573K0.0%-6.3%0.028%
7/23/2025KLP Kapitalforvaltning AS6,600$183K0.0%-17.5%0.009%
7/22/2025Knights of Columbus Asset Advisors LLC32,622$903K0.1%-47.9%0.045%
7/18/2025AMI Asset Management Corp43,141$1.19M0.1%-44.5%0.059%
7/18/2025Robeco Institutional Asset Management B.V.8,436$233K0.0%N/A0.012%
7/14/2025Toth Financial Advisory Corp10,700$296K0.0%N/A0.015%
7/10/2025Wealth Enhancement Advisory Services LLC15,410$430K0.0%+13.6%0.021%
7/9/2025Pallas Capital Advisors LLC8,535$236K0.0%N/A0.012%
6/27/2025Goldman Sachs Group Inc.156,328$3.47M0.0%-26.0%0.214%
6/18/2025Voya Investment Management LLC30,866$686K0.0%+54.4%0.042%
5/29/2025Rhumbline Advisers62,700$1.39M0.0%+6.4%0.086%
5/28/2025Strs Ohio26,800$595K0.0%N/A0.037%
5/21/2025Acadian Asset Management LLC1,034,321$22.96M0.1%+170.3%1.417%
5/19/2025Jane Street Group LLC129,291$2.87M0.0%-31.8%0.177%
5/16/2025Fred Alger Management LLC21,823$485K0.0%N/A0.030%
5/16/2025Goldman Sachs Group Inc.156,328$3.47M0.0%-26.0%0.214%
5/16/2025Parkman Healthcare Partners LLC762,621$16.94M2.0%-0.4%1.045%
5/16/2025Millennium Management LLC847,124$18.82M0.0%+8.7%1.161%
5/16/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.22,843$507K0.0%+4.6%0.031%
5/16/2025Granahan Investment Management LLC361,894$8.04M0.4%-21.9%0.496%
5/16/2025AQR Capital Management LLC491,761$10.92M0.0%+149.1%0.674%
5/16/2025Amundi15,972$348K0.0%N/A0.022%
5/16/2025ADAR1 Capital Management LLC41,412$920K0.2%-75.1%0.057%
5/15/2025Vestal Point Capital LP169,864$3.77M0.3%N/A0.233%
5/15/2025Birchview Capital LP30,006$666K0.6%N/A0.041%
5/15/2025PDT Partners LLC46,407$1.03M0.1%-28.5%0.064%
5/15/2025Braidwell LP1,962,909$43.60M1.5%-43.1%2.690%
5/15/2025Cubist Systematic Strategies LLC209,939$4.66M0.0%N/A0.288%
5/15/2025Kodai Capital Management LP185,364$4.12M0.2%N/A0.254%
5/15/2025Driehaus Capital Management LLC611,278$13.58M0.1%-0.4%0.838%
5/15/2025State of Wyoming17,064$379K0.1%+15.3%0.023%
5/15/2025Trexquant Investment LP236,483$5.25M0.1%+192.5%0.324%
5/14/2025Ieq Capital LLC43,625$969K0.0%N/A0.060%
5/14/2025Corebridge Financial Inc.15,979$355K0.0%+3.6%0.022%
5/14/2025MetLife Investment Management LLC22,695$504K0.0%-1.7%0.031%
5/14/2025Walleye Capital LLC86,203$1.92M0.0%N/A0.119%
5/14/2025Advantage Alpha Capital Partners LP13,597$302K0.1%+52.9%0.019%
5/14/2025Martingale Asset Management L P50,000$1.11M0.0%+1.3%0.069%
(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, 181 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 152 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 13,985,544 shares in the last 24 months. This purchase volume represents approximately $338.40M 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 10/5/2025 by MarketBeat.com Staff
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