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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
Mark RagosaCHIEF FINANCIAL OFFICER2025-12-0842,841$41.49
$1.78MSell
Mark RagosaCHIEF FINANCIAL OFFICER2025-12-0810,512$10.76
$113.11kBuy
Mark RagosaCHIEF FINANCIAL OFFICER2025-12-0816,164$11.10
$179.42kBuy
Mark RagosaCHIEF FINANCIAL OFFICER2025-12-0816,165$11.97
$193.50kBuy
Eben TessariCHIEF OPERATING OFFICER2025-11-26200$22.89
$4.58kBuy
Eben TessariCHIEF OPERATING OFFICER2025-11-26200$42.89
$8.58kSell
Eben TessariCHIEF OPERATING OFFICER2025-11-1711,825$41.30
$488.37kSell
Eben TessariCHIEF OPERATING OFFICER2025-11-176,500$8.83
$57.40kBuy
Eben TessariCHIEF OPERATING OFFICER2025-11-17645$40.08
$25.85kSell
Mark RagosaCHIEF FINANCIAL OFFICER2025-11-1219,900$30.93
$615.51kBuy

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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$166.36MInstitution
Vanguard Group Inc4.04%3,063,135$127.40MInstitution
Baker Bros Advisors LP3.73%2,824,669$117.48MInstitution
Baker Bros Advisors LP3.63%2,753,656$114.52MInsider
Tang Capital Management LLC3.07%2,328,609$96.85MInstitution
Fairmount Funds Management LLC2.34%1,772,839$73.73MInstitution
Cormorant Asset Management LP2.28%1,731,442$72.01MInsider
Acadian Asset Management LLC2.14%1,618,521$67.31MInstitution
Morgan Stanley1.80%1,362,923$56.68MInstitution
James E. Flynn1.62%1,226,890$51.03MInsider

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KNSA vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
KNSA53.90%9.39%Net SellingNet Selling
VERA66.95%33.05%Net BuyingNet Selling
TVTX63.49%36.51%Net SellingNet Selling
APLS76.30%23.70%Net SellingNet Selling
OCUL83.72%16.28%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, 9.39% Kiniksa Pharmaceuticals International insiders, and 36.71% 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 $114.52M.

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