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Kiniksa Pharmaceuticals International, plc

KNSA
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001730430

In the last 90 days, Kiniksa Pharmaceuticals International, plc insiders filed 0 open-market purchases and 2 sales; 267 institutions reported holding it in 13F filings for Q2 2026, worth $2.99B in total; no superinvestor holds it.

13F holders, Q4 2025

Institutional positions in Kiniksa Pharmaceuticals International, plc as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
224
+24 vs. Q3 2025
Shares held
43.0M
+2.55M (+6.3%) vs. Q3 2025
Total value
$1.77B
+$202.9M (+12.9%) vs. Q3 2025
New holders
42
79 more added
Sold out
18
70 more reduced

4 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting KNSA on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2025: 224 institutions
Q1 2021: 105 institutionsQ2 2021: 102 institutionsQ3 2021: 101 institutionsQ4 2021: 103 institutionsQ1 2022: 96 institutionsQ2 2022: 92 institutionsQ3 2022: 104 institutionsQ4 2022: 125 institutionsQ1 2023: 132 institutionsQ2 2023: 127 institutionsQ3 2023: 134 institutionsQ4 2023: 142 institutionsQ1 2024: 154 institutionsQ2 2024: 133 institutionsQ3 2024: 176 institutionsQ4 2024: 160 institutionsQ1 2025: 176 institutionsQ2 2025: 189 institutionsQ3 2025: 204 institutionsQ4 2025: 224 institutionsQ1 2026: 228 institutionsQ2 2026: 267 institutions
Value heldQ4 2025: $1.77B
Q1 2021: $537.6MQ2 2021: $402.0MQ3 2021: $332.0MQ4 2021: $346.4MQ1 2022: $306.0MQ2 2022: $290.5MQ3 2022: $383.2MQ4 2022: $450.0MQ1 2023: $339.6MQ2 2023: $447.7MQ3 2023: $605.8MQ4 2023: $600.4MQ1 2024: $768.1MQ2 2024: $659.4MQ3 2024: $991.2MQ4 2024: $773.1MQ1 2025: $889.4MQ2 2025: $1.10BQ3 2025: $1.59BQ4 2025: $1.77BQ1 2026: $2.18BQ2 2026: $2.99B
Institutions holding KNSA and their total value by quarter
QuarterHoldersValue
Q2 2026267$2.99B
Q1 2026228$2.18B
Q4 2025224$1.77B
Q3 2025204$1.59B
Q2 2025189$1.10B
Q1 2025176$889.4M
Q4 2024160$773.1M
Q3 2024176$991.2M
Q2 2024133$659.4M
Q1 2024154$768.1M
Q4 2023142$600.4M
Q3 2023134$605.8M
Q2 2023127$447.7M
Q1 2023132$339.6M
Q4 2022125$450.0M
Q3 2022104$383.2M
Q2 202292$290.5M
Q1 202296$306.0M
Q4 2021103$346.4M
Q3 2021101$332.0M
Q2 2021102$402.0M
Q1 2021105$537.6M

Institutions, Q4 2025

Shares, value and share of portfolio for each institution holding Kiniksa Pharmaceuticals International, plc; share changes are against Q3 2025.

Institutions holding KNSA in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Legal & General Group Plc28,566$1.18M0.00%−2,292−7.4%Reduced
Fox Run Management, L.L.C.27,804$1.15M0.18%+14,241+105.0%Added
Amundi23,496$969.2K0.00%+23,496New
Kornitzer Capital Management Inc22,091$911.3K0.02%+22,091New
Toth Financial Advisory Corp21,565$889.6K0.10%00.0%Unchanged
Harbor Capital Advisors, Inc.21,543$889.0K0.07%+843+4.1%Added
Los Angeles Capital Management LLC23,659$882.2K0.00%+5,376+29.4%Added
CWM, LLC20,605$850.0K0.00%+764+3.9%Added
Nuveen, LLC20,233$834.6K0.00%00.0%Unchanged
Wealth Enhancement Advisory Services, LLC16,424$701.0K0.00%+771+4.9%Added
Zurcher Kantonalbank (Zurich Cantonalbank)16,933$698.5K0.00%+1,446+9.3%Added
State of Wisconsin Investment Board16,799$693.0K0.00%−1,081−6.0%Reduced
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main16,525$681.7K0.00%+16,525New
Virtus Investment Advisers, Inc.16,432$677.8K0.18%+406+2.5%Added
Mark Sheptoff Financial Planning, LLC16,350$674.4K0.32%+250+1.6%Added
Brinker Capital Investments, LLC15,573$642.4K0.00%+6,765+76.8%Added
Magnetar Financial LLC15,295$630.9K0.01%+15,295New
Sound View Wealth Advisors Group, LLC14,792$610.2K0.04%+2,063+16.2%Added
Bank of New York Mellon Corp14,471$596.9K0.00%−18,058−55.5%Reduced
Mirae Asset Global Investments Co., Ltd.14,186$585.2K0.00%+2,485+21.2%Added
Allspring Global Investments Holdings, LLC13,772$568.1K0.00%−4,984−26.6%Reduced
Mariner, LLC13,519$557.7K0.00%+266+2.0%Added
Catalyst Funds Management Pty Ltd13,400$552.8K0.13%00.0%Unchanged
State of Wyoming13,280$547.8K0.06%+5,318+66.8%Added
Graham Capital Management, L.P.12,960$534.6K0.02%+6,366+96.5%Added
BIT Capital GmbH12,800$528.0K0.02%+12,800New
PSP Research LLC12,655$522.0K0.46%+12,655New
National Asset Management, Inc.11,993$494.7K0.02%+11,993New
Skopos Labs, Inc.11,968$490.6K0.02%+11,968New
State of New Jersey Common Pension Fund D11,871$489.7K0.00%+11,871New
Creative Planning11,482$473.6K0.00%−1,275−10.0%Reduced
TD Waterhouse Canada Inc.11,447$471.0K0.00%+9,407+461.1%Added
Tudor Investment Corp Et Al11,249$464.0K0.00%−6,642−37.1%Reduced
Twinbeech Capital LP10,828$446.7K0.03%+10,828New
Arizona State Retirement System9,709$400.5K0.00%−307−3.1%Reduced
First Trust Advisors LP9,583$395.3K0.00%+1,518+18.8%Added
HighTower Advisors, LLC8,724$359.9K0.00%+8,724New
Pallas Capital Advisors LLC8,570$353.5K0.01%+30+0.4%Added
Juncture Wealth Strategies, LLC8,146$336.0K0.11%+1,282+18.7%Added
ExodusPoint Capital Management, LP7,958$328.3K0.00%−51,918−86.7%Reduced
Mercer Global Advisors Inc7,684$317.0K0.00%+508+7.1%Added
KLP Kapitalforvaltning AS7,500$309.4K0.00%+900+13.6%Added
China Universal Asset Management Co., Ltd.7,359$303.6K0.02%−261−3.4%Reduced
Rhumbline Advisers7,286$300.5K0.00%00.0%Unchanged
Sheets Smith Wealth Management7,162$295.4K0.03%00.0%Unchanged
Prelude Capital Management, LLC7,070$291.6K0.02%+7,070New
XTX Topco Ltd7,062$291.3K0.01%+7,062New
Round Rock Advisors, LLC7,055$291.0K0.04%+1,899+36.8%Added
James Investment Research Inc7,027$289.9K0.03%00.0%Unchanged
Savant Capital, LLC6,876$283.6K0.00%+1,129+19.6%Added
Gotham Asset Management, LLC6,662$274.8K0.00%+317+5.0%Added
Roman Butler Fullerton & Co6,388$271.1K0.07%+1,000+18.6%Added
Quantedge Capital Pte Ltd6,545$270.0K0.13%−8,500−56.5%Reduced
Virtu Financial LLC6,466$267.0K0.01%+6,466New
Two Sigma Securities, LLC6,136$253.1K0.03%+6,136New
Campbell & CO Investment Adviser LLC5,869$242.1K0.01%−32,248−84.6%Reduced
Marshall Wace, LLP5,800$239.3K0.00%−55,516−90.5%Reduced
Voya Investment Management LLC5,790$238.8K0.00%−2,075−26.4%Reduced
Holocene Advisors, LP5,715$235.7K0.00%+5,715New
Vestcor Inc5,623$232.0K0.01%00.0%Unchanged
Sanctuary Advisors, LLC5,391$222.4K0.00%+5,391New
Financiere des Professionnels - Fonds d,investissement inc.5,376$221.8K0.01%+5,376New
MML Investors Services, LLC5,260$217.0K0.00%+44+0.8%Added
Teacher Retirement System of Texas5,153$212.6K0.00%−3,193−38.3%Reduced
Franklin Resources Inc4,943$203.9K0.00%+4,943New
Swiss Life Asset Management Ltd4,894$201.9K0.00%+4,894New
Barclays PLC4,577$188.8K0.00%−2,776−37.8%Reduced
Asset Management One Co.,Ltd.4,282$175.5K0.00%−3,941−47.9%Reduced
Russell Investments Group, Ltd.3,194$131.0K0.00%−45,988−93.5%Reduced
Oregon Public Employees Retirement Fund2,324$95.9K0.00%00.0%Unchanged
Steward Partners Investment Advisory, LLC2,266$93.5K0.00%00.0%Unchanged
State of Alaska, Department of Revenue2,268$93.0K0.00%00.0%Unchanged
Aquatic Capital Management LLC1,939$80.0K0.00%+1,939New
Essential Partners LLC1,926$79.4K0.02%+3+0.2%Added
The PNC Financial Services Group, Inc.1,922$79.3K0.00%+21+1.1%Added
Citigroup Inc1,693$69.8K0.00%−8,071−82.7%Reduced
Advisor Group Holdings, Inc.1,569$64.7K0.00%+31+2.0%Added
Farther Finance Advisors, LLC1,554$64.1K0.00%+196+14.4%Added
US Bancorp1,380$56.9K0.00%00.0%Unchanged
GAMMA Investing LLC1,068$44.1K0.00%−58−5.2%Reduced
Nano Cap New Millennium Growth Fund L P1,000$41.3K0.04%+1,000New
CIBC Private Wealth Group, LLC1,000$41.3K0.00%+1,000New
Signaturefd, LLC947$39.1K0.00%00.0%Unchanged
GF Fund Management Co. Ltd.887$36.6K0.00%−48−5.1%Reduced
Smartleaf Asset Management LLC889$36.4K0.00%+889New
True Wealth Design, LLC687$28.3K0.01%00.0%Unchanged
USA Financial Portformulas Corp657$27.1K0.00%−159−19.5%Reduced
Truvestments Capital LLC627$25.9K0.00%00.0%Unchanged
EverSource Wealth Advisors, LLC546$22.5K0.00%−41−7.0%Reduced
Parallel Advisors, LLC535$22.1K0.00%−1−0.2%Reduced
Federation des caisses Desjardins du Quebec500$20.6K0.00%00.0%Unchanged
Larson Financial Group LLC412$17.0K0.00%+75+22.3%Added
Tower Research Capital LLC (TRC)379$15.6K0.00%+325+601.9%Added
Caitong International Asset Management Co., Ltd331$13.7K0.00%−282−46.0%Reduced
Jones Financial Companies LLLP277$11.4K0.00%+277New
Quarry LP270$11.1K0.00%−856−76.0%Reduced
Fortitude Family Office, LLC249$10.3K0.00%00.0%Unchanged
Group One Trading, L.P.200$8.25K0.00%+200New
Versant Capital Management, Inc166$6.85K0.00%00.0%Unchanged
Rothschild Investment LLC160$6.60K0.00%+10+6.7%Added