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NASDAQ: KNSA
Kiniksa Pharmaceuticals International PLC Stock Ownership - Who owns Kiniksa Pharmaceuticals International?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Kiniksa Pharmaceuticals International PLC insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Barry D. QuartDirector2026-02-042,602$15.47
$40.25kBuy
Barry D. QuartDirector2026-02-042,602$45.02
$117.14kSell
Barry D. QuartDirector2026-02-0312,528$45.27
$567.14kSell
Barry D. QuartDirector2026-02-0312,528$15.47
$193.81kBuy
Barry D. QuartDirector2026-02-02830$45.00
$37.35kSell
Barry D. QuartDirector2026-02-02830$15.47
$12.84kBuy
Mark RagosaCHIEF FINANCIAL OFFICER2026-01-0812,000$41.89
$502.68kSell
Eben TessariCHIEF OPERATING OFFICER2025-12-1512,048$41.56
$500.71kSell
Barry D. QuartDirector2025-12-1520,129$10.36
$208.54kBuy
Barry D. QuartDirector2025-12-1520,129$41.51
$835.55kSell

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Net Insider Buy/Sell (L12M) Ownership

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KNSA Shareholders

What type of owners hold Kiniksa Pharmaceuticals International PLC stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Rubric Capital Management LP5.28%4,000,000$172.36MInstitution
Vanguard Group Inc4.04%3,063,135$131.99MInstitution
Baker Bros Advisors LP3.73%2,824,669$121.71MInstitution
Baker Bros Advisors LP3.63%2,753,656$118.66MInsider
Tang Capital Management LLC3.07%2,328,609$100.34MInstitution
Fairmount Funds Management LLC2.34%1,772,839$76.39MInstitution
Cormorant Asset Management LP2.28%1,731,442$74.61MInsider
Acadian Asset Management LLC2.14%1,618,521$69.74MInstitution
Morgan Stanley1.80%1,362,923$58.73MInstitution
James E. Flynn1.62%1,226,890$52.87MInsider

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KNSA vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
KNSA53.90%9.37%Net SellingNet Selling
ERAS71.42%28.58%Net BuyingNet Buying
VKTX63.02%9.09%Net SellingNet Selling
TERN81.05%18.95%Net SellingNet Selling
ARQT76.75%23.25%Net SellingNet Selling
View Top Biotech Stocks

Kiniksa Pharmaceuticals International Stock Ownership FAQ

Who owns Kiniksa Pharmaceuticals International?

Kiniksa Pharmaceuticals International (NASDAQ: KNSA) is owned by 53.90% institutional shareholders, 9.37% Kiniksa Pharmaceuticals International insiders, and 36.73% retail investors. Baker Bros Advisors LP is the largest individual Kiniksa Pharmaceuticals International shareholder, owning 2.75M shares representing 3.63% of the company. Baker Bros Advisors LP's Kiniksa Pharmaceuticals International shares are currently valued at $122.12M.

If you're new to stock investing, here's how to buy Kiniksa Pharmaceuticals International stock.
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