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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
Sanj K. PatelCHAIRMAN CEO2026-05-0148,565$54.02
$2.62MSell
John F. PaoliniCHIEF MEDICAL OFFICER2026-05-0121,097$54.04
$1.14MSell
John F. PaoliniCHIEF MEDICAL OFFICER2026-05-0137,327$53.52
$2.00MSell
John F. PaoliniCHIEF MEDICAL OFFICER2026-05-0158,424$10.36
$605.27kBuy
Sanj K. PatelCHAIRMAN CEO2026-05-0148,565$30.93
$1.50MBuy
Sanj K. PatelCHAIRMAN CEO2026-04-302,141$30.93
$66.22kBuy
Sanj K. PatelCHAIRMAN CEO2026-04-302,141$54.01
$115.64kSell
Sanj K. PatelCHAIRMAN CEO2026-04-2922,544$54.01
$1.22MSell
Sanj K. PatelCHAIRMAN CEO2026-04-2922,544$30.93
$697.29kBuy
Sanj K. PatelCHAIRMAN CEO2026-04-28431,904$10.36
$4.47MBuy

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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
Fmr LLC8.87%6,823,700$388.20MInstitution
Rubric Capital Management LP4.87%3,750,000$213.34MInstitution
Baker Bros Advisors LP3.67%2,826,246$160.79MInstitution
Baker Bros Advisors LP3.59%2,759,734$157.00MInsider
Tang Capital Management LLC2.94%2,259,889$128.57MInstitution
Vanguard Portfolio Management LLC2.30%1,766,268$100.48MInstitution
Cormorant Asset Management LP2.25%1,731,442$98.50MInsider
Sanj K. Patel1.94%1,492,483$84.91MInsider
Acadian Asset Management LLC1.74%1,336,313$76.02MInstitution
Vanguard Capital Management LLC1.73%1,333,093$75.84MInstitution

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KNSA vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
KNSA59.03%10.53%Net SellingNet Selling
TNGX68.39%31.61%Net SellingNet Buying
EWTX88.33%11.67%Net SellingNet Selling
VKTX63.04%8.85%Net Selling
ACAD71.81%28.19%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 59.03% institutional shareholders, 10.53% Kiniksa Pharmaceuticals International insiders, and 30.43% retail investors. Baker Bros Advisors LP is the largest individual Kiniksa Pharmaceuticals International shareholder, owning 2.76M shares representing 3.59% of the company. Baker Bros Advisors LP's Kiniksa Pharmaceuticals International shares are currently valued at $163.38M.

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