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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 OFFICER2026-03-0917,981$45.58
$819.57kSell
Mark RagosaCHIEF FINANCIAL OFFICER2026-03-092,036$22.89
$46.60kBuy
Mark RagosaCHIEF FINANCIAL OFFICER2026-03-0910,513$17.76
$186.71kBuy
Mark RagosaCHIEF FINANCIAL OFFICER2026-03-0913,813$18.06
$249.46kBuy
Mark RagosaCHIEF FINANCIAL OFFICER2026-03-0910,360$26.74
$277.03kBuy
Mark RagosaCHIEF FINANCIAL OFFICER2026-03-0918,741$46.24
$866.58kSell
John F. PaoliniCHIEF MEDICAL OFFICER2026-03-0240,000$10.36
$414.40kBuy
John F. PaoliniCHIEF MEDICAL OFFICER2026-03-025,714$45.92
$262.39kSell
John F. PaoliniCHIEF MEDICAL OFFICER2026-03-0222,223$44.88
$997.37kSell
John F. PaoliniCHIEF MEDICAL OFFICER2026-03-0212,063$44.20
$533.18kSell

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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
Rockefeller Capital Management LP9.35%7,154,317$331.32MInstitution
Rubric Capital Management LP4.35%3,328,653$154.15MInstitution
Vanguard Group Inc4.07%3,112,937$144.16MInstitution
Baker Bros Advisors LP3.69%2,826,246$130.88MInstitution
Baker Bros Advisors LP3.60%2,753,656$127.52MInsider
Tang Capital Management LLC2.95%2,259,889$104.66MInstitution
Cormorant Asset Management LP2.26%1,731,442$80.18MInsider
Acadian Asset Management LLC2.24%1,713,043$79.33MInstitution
Fmr LLC2.15%1,642,863$76.08MInstitution
Morgan Stanley1.78%1,360,044$62.98MInstitution

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KNSA vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
KNSA65.27%9.27%Net SellingNet Selling
LEGN23.68%0.00%
ADMA79.68%20.32%Net SellingNet Selling
DNTH59.33%40.67%Net Buying
CORT28.26%71.74%Net BuyingNet Buying
View Top Biotech Stocks

Kiniksa Pharmaceuticals International Stock Ownership FAQ

Who owns Kiniksa Pharmaceuticals International?

Kiniksa Pharmaceuticals International (NASDAQ: KNSA) is owned by 65.27% institutional shareholders, 9.27% Kiniksa Pharmaceuticals International insiders, and 25.46% retail investors. Baker Bros Advisors LP is the largest individual Kiniksa Pharmaceuticals International shareholder, owning 2.75M shares representing 3.60% of the company. Baker Bros Advisors LP's Kiniksa Pharmaceuticals International shares are currently valued at $126.86M.

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