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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
Eben TessariCHIEF OPERATING OFFICER2025-08-18100$34.44
$3.44kSell
Eben TessariCHIEF OPERATING OFFICER2025-08-186,500$8.83
$57.40kBuy
Eben TessariCHIEF OPERATING OFFICER2025-08-1816,100$33.77
$543.70kSell
Thomas MalleyDirector2025-08-1418,760$15.47
$290.22kBuy
Thomas MalleyDirector2025-08-1478,233$33.09
$2.59MSell
Thomas MalleyDirector2025-08-1433,237$14.33
$476.29kBuy
Thomas MalleyDirector2025-08-1426,236$15.19
$398.52kBuy
Thomas MalleyDirector2025-08-1350,129$33.32
$1.67MSell
Thomas MalleyDirector2025-08-1320,129$10.36
$208.54kBuy
Thomas MalleyDirector2025-08-1330,000$9.88
$296.40kBuy

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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%3,909,806$131.96MInstitution
Vanguard Group Inc4.23%3,131,602$105.69MInstitution
Baker Bros Advisors LP3.81%2,824,669$95.33MInstitution
Baker Bros Advisors LP3.72%2,753,656$92.94MInsider
Tang Capital Management LLC3.14%2,328,609$78.59MInstitution
Fairmount Funds Management LLC2.39%1,772,839$59.83MInstitution
Cormorant Asset Management LP2.34%1,731,442$58.44MInsider
Acadian Asset Management LLC1.71%1,267,989$42.79MInstitution
James E. Flynn1.66%1,226,890$41.41MInsider
Braidwell LP1.49%1,102,580$37.21MInstitution

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KNSA vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
KNSA53.73%9.46%Net SellingNet Selling
VCYT66.66%33.34%Net SellingNet Selling
CPRX82.61%15.77%Net BuyingNet Selling
TARS73.83%26.17%Net SellingNet Selling
FOLD66.48%33.52%Net Selling
View Top Biotech Stocks

Kiniksa Pharmaceuticals International Stock Ownership FAQ

Who owns Kiniksa Pharmaceuticals International?

Kiniksa Pharmaceuticals International (NASDAQ: KNSA) is owned by 53.73% institutional shareholders, 9.46% Kiniksa Pharmaceuticals International insiders, and 36.81% retail investors. Baker Bros Advisors LP is the largest individual Kiniksa Pharmaceuticals International shareholder, owning 2.75M shares representing 3.72% of the company. Baker Bros Advisors LP's Kiniksa Pharmaceuticals International shares are currently valued at $92.94M.

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