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, Q3 2025
Institutional positions in Kiniksa Pharmaceuticals International, plc as of Sep 30, 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
- 204
- +15 vs. Q2 2025
- Shares held
- 40.8M
- +989.0K (+2.5%) vs. Q2 2025
- Total value
- $1.59B
- +$483.0M (+43.8%) vs. Q2 2025
- New holders
- 47
- 60 more added
- Sold out
- 32
- 70 more reduced
Compare with Q2 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 267 | $2.99B |
| Q1 2026 | 228 | $2.18B |
| Q4 2025 | 224 | $1.77B |
| Q3 2025 | 204 | $1.59B |
| Q2 2025 | 189 | $1.10B |
| Q1 2025 | 176 | $889.4M |
| Q4 2024 | 160 | $773.1M |
| Q3 2024 | 176 | $991.2M |
| Q2 2024 | 133 | $659.4M |
| Q1 2024 | 154 | $768.1M |
| Q4 2023 | 142 | $600.4M |
| Q3 2023 | 134 | $605.8M |
| Q2 2023 | 127 | $447.7M |
| Q1 2023 | 132 | $339.6M |
| Q4 2022 | 125 | $450.0M |
| Q3 2022 | 104 | $383.2M |
| Q2 2022 | 92 | $290.5M |
| Q1 2022 | 96 | $306.0M |
| Q4 2021 | 103 | $346.4M |
| Q3 2021 | 101 | $332.0M |
| Q2 2021 | 102 | $402.0M |
| Q1 2021 | 105 | $537.6M |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Kiniksa Pharmaceuticals International, plc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Rubric Capital Management LP | 4,000,000 | $155.3M | 2.09% | +90,194+2.3% | Added |
| Vanguard Group Inc | 3,063,135 | $118.9M | 0.00% | −68,467−2.2% | Reduced |
| Baker Bros. Advisors LP | 2,824,669 | $109.7M | 0.79% | 00.0% | Unchanged |
| Tang Capital Management LLC | 2,328,609 | $90.4M | 3.48% | 00.0% | Unchanged |
| Fairmount Funds Management LLC | 1,772,839 | $68.8M | 6.19% | 00.0% | Unchanged |
| Acadian Asset Management LLC | 1,618,521 | $62.8M | 0.11% | +350,532+27.6% | Added |
| Morgan Stanley | 1,362,923 | $52.9M | 0.00% | +296,644+27.8% | Added |
| D. E. Shaw & Co., Inc. | 1,134,186 | $44.0M | 0.04% | +342,881+43.3% | Added |
| Arrowstreet Capital, Limited Partnership | 1,068,263 | $41.5M | 0.03% | +332,846+45.3% | Added |
| Millennium Management LLC | 1,014,125 | $39.4M | 0.03% | −5,843−0.6% | Reduced |
| Pictet Asset Management Holding SA | 932,096 | $36.2M | 0.03% | −52,501−5.3% | Reduced |
| FMR LLC | 799,755 | $31.1M | 0.00% | −7,143−0.9% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 725,355 | $28.2M | 0.09% | +101,666+16.3% | Added |
| Qube Research & Technologies Ltd | 689,888 | $26.8M | 0.04% | −198,476−22.3% | Reduced |
| Parkman Healthcare Partners LLC | 671,592 | $26.1M | 2.86% | +182,796+37.4% | Added |
| Driehaus Capital Management LLC | 654,585 | $25.4M | 0.18% | +6,605+1.0% | Added |
| BNP Paribas Arbitrage, SA | 653,411 | $25.4M | 0.02% | +227,464+53.4% | Added |
| Braidwell LP | 643,180 | $25.0M | 0.74% | −459,400−41.7% | Reduced |
| Dimensional Fund Advisors LP | 632,123 | $24.5M | 0.01% | −16,213−2.5% | Reduced |
| Rice Hall James & Associates, LLC | 577,822 | $22.4M | 1.22% | −60,411−9.5% | Reduced |
| Point72 Asset Management, L.P. | 566,927 | $22.0M | 0.05% | −281,622−33.2% | Reduced |
| Goldman Sachs Group Inc | 546,510 | $21.2M | 0.00% | +162,842+42.4% | Added |
| Deutsche Bank AG | 533,375 | $20.7M | 0.01% | +163,873+44.3% | Added |
| Bank of America Corp | 495,483 | $19.2M | 0.00% | +222,854+81.7% | Added |
| Two Sigma Investments, LP | 461,770 | $17.9M | 0.03% | +298,030+182.0% | Added |
| Jane Street Group, LLC | 461,388 | $17.9M | 0.02% | −97,004−17.4% | Reduced |
| Massachusetts Financial Services Co | 458,304 | $17.8M | 0.01% | +394,072+613.5% | Added |
| BlackRock, Inc. | 457,647 | $17.8M | 0.00% | −245,233−34.9% | Reduced |
| Walleye Capital LLC | 413,086 | $16.0M | 0.13% | +293,201+244.6% | Added |
| Nomura Holdings Inc | 397,139 | $15.4M | 0.07% | +397,139 | New |
| Cubist Systematic Strategies, LLC | 381,319 | $14.8M | 0.21% | −276,156−42.0% | Reduced |
| Trexquant Investment LP | 359,838 | $14.0M | 0.14% | −97,149−21.3% | Reduced |
| ArrowMark Colorado Holdings LLC | 340,627 | $13.2M | 0.25% | −125,272−26.9% | Reduced |
| AQR Capital Management LLC | 332,417 | $12.9M | 0.01% | −65,815−16.5% | Reduced |
| Citadel Advisors LLC | 314,556 | $12.2M | 0.01% | +47,163+17.6% | Added |
| Oberweis Asset Management Inc | 305,200 | $11.9M | 0.45% | 00.0% | Unchanged |
| Voloridge Investment Management, LLC | 298,347 | $11.6M | 0.04% | −35,576−10.7% | Reduced |
| Granahan Investment Management Inc | 283,571 | $11.0M | 0.45% | −27,421−8.8% | Reduced |
| Fisher Asset Management, LLC | 282,288 | $11.0M | 0.00% | +180,029+176.1% | Added |
| Essex Investment Management Co LLC | 247,301 | $9.60M | 1.47% | +75,864+44.3% | Added |
| Hillsdale Investment Management Inc. | 225,374 | $8.75M | 0.26% | +24,800+12.4% | Added |
| Peregrine Capital Management LLC | 214,364 | $8.32M | 0.25% | −74,272−25.7% | Reduced |
| JPMorgan Chase & Co | 192,456 | $7.47M | 0.00% | +57,174+42.3% | Added |
| Two Sigma Advisers, LP | 177,100 | $6.88M | 0.01% | +91,700+107.4% | Added |
| Rockefeller Capital Management L.P. | 173,438 | $6.73M | 0.01% | +173,438 | New |
| SEI Investments Co | 171,169 | $6.65M | 0.01% | +69,673+68.6% | Added |
| Standard Life Aberdeen plc | 158,722 | $6.16M | 0.01% | +158,722 | New |
| Castleark Management LLC | 158,632 | $6.16M | 0.17% | +158,632 | New |
| Soleus Capital Management, L.P. | 150,000 | $5.82M | 0.31% | −104,689−41.1% | Reduced |
| SG Americas Securities, LLC | 139,318 | $5.41M | 0.02% | +4,914+3.7% | Added |
| Lazard Asset Management LLC | 138,312 | $5.37M | 0.01% | +123,131+811.1% | Added |
| Nordea Investment Management AB | 131,074 | $5.02M | 0.00% | +914+0.7% | Added |
| Silvercrest Asset Management Group LLC | 126,260 | $4.90M | 0.03% | +126,260 | New |
| Hennion & Walsh Asset Management, Inc. | 121,819 | $4.73M | 0.17% | −11,195−8.4% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 121,400 | $4.71M | 0.01% | +53,900+79.9% | Added |
| Linden Thomas Advisory Services, LLC | 116,040 | $4.51M | 0.46% | −75−0.1% | Reduced |
| Jump Financial, LLC | 112,935 | $4.39M | 0.06% | −113,103−50.0% | Reduced |
| PDT Partners, LLC | 101,622 | $3.95M | 0.25% | −1,264−1.2% | Reduced |
| EAM Investors, LLC | 97,939 | $3.74M | 0.43% | −7,808−7.4% | Reduced |
| Globeflex Capital L P | 93,396 | $3.63M | 0.56% | +4,800+5.4% | Added |
| Voleon Capital Management LP | 89,166 | $3.46M | 0.08% | +89,166 | New |
| Silverarc Capital Management, LLC | 88,910 | $3.45M | 0.50% | +12,951+17.0% | Added |
| Engineers Gate Manager LP | 87,464 | $3.40M | 0.04% | +28,189+47.6% | Added |
| Squarepoint Ops LLC | 85,198 | $3.31M | 0.01% | −331,374−79.5% | Reduced |
| Schonfeld Strategic Advisors LLC | 83,881 | $3.26M | 0.02% | +15,130+22.0% | Added |
| Raymond James Financial Inc | 79,079 | $3.07M | 0.00% | −5,836−6.9% | Reduced |
| Gsa Capital Partners LLP | 77,984 | $3.03M | 0.25% | +57,566+281.9% | Added |
| ADAR1 Capital Management, LLC | 75,187 | $2.92M | 0.29% | +18,647+33.0% | Added |
| State Street Corp | 75,050 | $2.91M | 0.00% | +2,146+2.9% | Added |
| Man Group plc | 67,905 | $2.64M | 0.01% | +67,905 | New |
| Swiss National Bank | 65,700 | $2.55M | 0.00% | +1,100+1.7% | Added |
| Charles Schwab Investment Management Inc | 65,112 | $2.53M | 0.00% | −5,203−7.4% | Reduced |
| Marshall Wace, LLP | 61,316 | $2.38M | 0.00% | −15,031−19.7% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 60,344 | $2.34M | 0.00% | +51,204+560.2% | Added |
| Susquehanna Fundamental Investments, LLC | 60,125 | $2.33M | 0.09% | 00.0% | Unchanged |
| ExodusPoint Capital Management, LP | 59,876 | $2.32M | 0.03% | −73,400−55.1% | Reduced |
| Adage Capital Partners GP, L.L.C. | 59,000 | $2.29M | 0.00% | +59,000 | New |
| Legato Capital Management LLC | 57,641 | $2.24M | 0.24% | +7,000+13.8% | Added |
| UBS Asset Management Americas Inc | 55,519 | $2.16M | 0.00% | −49,186−47.0% | Reduced |
| Baird Financial Group, Inc. | 55,312 | $2.15M | 0.00% | 00.0% | Unchanged |
| Northern Trust Corp | 52,407 | $2.03M | 0.00% | −2,180−4.0% | Reduced |
| UBS Group AG | 49,817 | $1.93M | 0.00% | +19,201+62.7% | Added |
| Russell Investments Group, Ltd. | 49,182 | $1.91M | 0.00% | −11,913−19.5% | Reduced |
| Ieq Capital, LLC | 45,987 | $1.79M | 0.01% | −929−2.0% | Reduced |
| Geode Capital Management, LLC | 45,562 | $1.77M | 0.00% | −5,380−10.6% | Reduced |
| Dark Forest Capital Management LP | 43,346 | $1.68M | 0.06% | −4,861−10.1% | Reduced |
| Ami Asset Management Corp | 43,107 | $1.67M | 0.09% | −34−0.1% | Reduced |
| Cerity Partners LLC | 43,036 | $1.67M | 0.00% | +1,132+2.7% | Added |
| Campbell & CO Investment Adviser LLC | 38,117 | $1.48M | 0.11% | +38,117 | New |
| Algert Global LLC | 35,847 | $1.39M | 0.02% | −196,340−84.6% | Reduced |
| Ameriprise Financial Inc | 33,546 | $1.30M | 0.00% | +1,289+4.0% | Added |
| Bank of New York Mellon Corp | 32,529 | $1.26M | 0.00% | +790+2.5% | Added |
| California State Teachers Retirement System | 31,498 | $1.22M | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 30,858 | $1.20M | 0.00% | 00.0% | Unchanged |
| Danske Bank A/S | 30,389 | $1.18M | 0.00% | −12,565−29.3% | Reduced |
| Birchview Capital, LP | 30,000 | $1.16M | 0.88% | 00.0% | Unchanged |
| Artia Global Partners LP | 29,200 | $1.13M | 0.20% | 00.0% | Unchanged |
| Invesco Ltd. | 25,678 | $997.1K | 0.00% | +5,389+26.6% | Added |
| Lion Point Capital, LP | 23,400 | $908.6K | 5.16% | −22,500−49.0% | Reduced |
| Toth Financial Advisory Corp | 21,565 | $837.4K | 0.09% | +10,865+101.5% | Added |