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

Insider buying vs selling

Have Kiniksa Pharmaceuticals International PLC insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Eben TessariCHIEF OPERATING OFFICER2025-06-166,500$8.83
$57.40kBuy
Eben TessariCHIEF OPERATING OFFICER2025-06-1617,300$28.28
$489.24kSell
Barry D. QuartDirector2025-06-1112,336$3.80
$46.88kBuy
Barry D. QuartDirector2025-06-1112,336$30.39
$374.89kSell
Eben TessariCHIEF OPERATING OFFICER2025-06-1145,042$30.51
$1.37MSell
Eben TessariCHIEF OPERATING OFFICER2025-06-1145,042$10.36
$466.64kBuy
Barry D. QuartDirector2025-06-108,212$30.36
$249.32kSell
Eben TessariCHIEF OPERATING OFFICER2025-06-1015,506$30.46
$472.31kSell
Eben TessariCHIEF OPERATING OFFICER2025-06-1015,506$10.36
$160.64kBuy
Barry D. QuartDirector2025-06-108,212$3.80
$31.21kBuy

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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
Blackrock Inc4.70%3,432,699$95.94MInstitution
Rubric Capital Management LP4.64%3,383,239$94.56MInstitution
Vanguard Group Inc4.60%3,359,101$93.89MInstitution
Baker Bros Advisors LP3.86%2,818,323$78.77MInstitution
Baker Bros Advisors LP3.77%2,753,656$76.96MInsider
Tang Capital Management LLC2.90%2,118,579$59.21MInstitution
Braidwell LP2.69%1,962,909$54.86MInstitution
Cormorant Asset Management LP2.37%1,731,442$48.39MInsider
James E. Flynn1.68%1,226,890$34.29MInsider
Point72 Asset Management LP1.58%1,149,411$32.13MInstitution

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KNSA vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
KNSA54.78%9.64%Net SellingNet Selling
CGON88.05%11.95%Net SellingNet Buying
VCEL91.20%8.80%Net SellingNet Buying
BEAM84.84%15.16%Net SellingNet Selling
FOLD65.78%34.22%Net Selling

Kiniksa Pharmaceuticals International Stock Ownership FAQ

Who owns Kiniksa Pharmaceuticals International?

Kiniksa Pharmaceuticals International (NASDAQ: KNSA) is owned by 54.78% institutional shareholders, 9.64% Kiniksa Pharmaceuticals International insiders, and 35.59% retail investors. Baker Bros Advisors LP is the largest individual Kiniksa Pharmaceuticals International shareholder, owning 2.75M shares representing 3.77% of the company. Baker Bros Advisors LP's Kiniksa Pharmaceuticals International shares are currently valued at $74.93M.

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