Kiniksa Pharmaceuticals International Plc. Major Shareholders & Ownership History
| Major Shareholder Name | Reporting Date | Shares Held | Market Value | Change in Shares | Ownership |
|---|---|---|---|---|---|
| FMR LLC | 05/15/2026 | 6.82 M | $328.56 M | 315.35% | 9.20% |
| RUBRIC CAPITAL MANAGEMENT LP | 05/15/2026 | 3.75 M | $180.56 M | 12.66% | 5.05% |
| BAKER BROS. ADVISORS LP | 05/15/2026 | 2.83 M | $136.08 M | 0.00% | 3.81% |
| TANG CAPITAL MANAGEMENT LLC | 05/15/2026 | 2.26 M | $108.81 M | 0.00% | 3.05% |
| 05/08/2026 | 1.77 M | $85.05 M | 100.00% | 2.38% | |
| ACADIAN ASSET MANAGEMENT LLC | 05/13/2026 | 1.34 M | $64.32 M | -21.99% | 1.80% |
| 05/15/2026 | 1.33 M | $64.19 M | 100.00% | 1.80% | |
| CAPTION MANAGEMENT, LLC | 05/15/2026 | 999.40 K | $48.12 M | -32.95% | 1.35% |
| MORGAN STANLEY | 05/15/2026 | 997.79 K | $48.04 M | -26.64% | 1.34% |
| D. E. SHAW & CO., INC. | 05/15/2026 | 959.26 K | $46.19 M | -22.74% | 1.29% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 05/14/2026 | 892.67 K | $42.98 M | -16.43% | 1.20% |
| DIMENSIONAL FUND ADVISORS LP | 05/07/2026 | 811.92 K | $39.09 M | 18.79% | 1.09% |
| 05/14/2026 | 761.06 K | $36.65 M | 74.96% | 1.03% | |
| BANK OF AMERICA CORP /DE/ | 05/18/2026 | 735.94 K | $35.44 M | 220.86% | 0.99% |
| QUBE RESEARCH & TECHNOLOGIES LTD | 05/15/2026 | 686.85 K | $33.07 M | -10.37% | 0.93% |
| CONNOR, CLARK & LUNN INVESTMENT MANAGEMENT LTD. | 05/11/2026 | 649.63 K | $31.28 M | -12.13% | 0.88% |
| BNP PARIBAS ARBITRAGE, SNC | 05/12/2026 | 647.73 K | $31.19 M | -22.13% | 0.87% |
| POINT72 ASSET MANAGEMENT, L.P. | 05/15/2026 | 640.96 K | $30.86 M | -19.59% | 0.86% |
| SG AMERICAS SECURITIES, LLC | 04/16/2026 | 640.18 K | $30.83 M | 18.25% | 0.86% |
| PICTET ASSET MANAGEMENT HOLDING SA | 04/22/2026 | 623.29 K | $30.01 M | -20.85% | 0.84% |
| DRIEHAUS CAPITAL MANAGEMENT LLC | 05/15/2026 | 611.40 K | $29.44 M | -3.39% | 0.82% |
| RICE HALL JAMES & ASSOCIATES, LLC | 05/15/2026 | 608.42 K | $29.30 M | 2.01% | 0.82% |
| ALLIANCEBERNSTEIN L.P. | 05/15/2026 | 598.89 K | $24.70 M | 82.44% | 0.81% |
| MILLENNIUM MANAGEMENT LLC | 05/15/2026 | 564.42 K | $27.18 M | -31.61% | 0.76% |
| DEUTSCHE BANK AG\ | 05/06/2026 | 523.69 K | $25.22 M | -16.91% | 0.71% |
| SOLEUS CAPITAL MANAGEMENT, L.P. | 05/14/2026 | 521.35 K | $25.10 M | -11.18% | 0.70% |
| VICTORY CAPITAL MANAGEMENT INC | 05/15/2026 | 506.52 K | $24.39 M | -1.10% | 0.68% |
| BALYASNY ASSET MANAGEMENT L.P. | 05/15/2026 | 499.79 K | $24.06 M | 100.00% | 0.67% |
| BLACKROCK, INC. | 05/13/2026 | 486.74 K | $23.44 M | 8.99% | 0.66% |
| JANUS HENDERSON GROUP PLC | 05/18/2026 | 481.02 K | $23.20 M | 213.52% | 0.65% |
| CITADEL ADVISORS LLC | 05/15/2026 | 474.75 K | $22.86 M | -36.03% | 0.64% |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 05/14/2026 | 438.00 K | $21.09 M | 3.00% | 0.59% |
| FISHER ASSET MANAGEMENT, LLC | 05/05/2026 | 428.97 K | $20.66 M | 60.50% | 0.58% |
| TWO SIGMA INVESTMENTS, LP | 05/15/2026 | 420.91 K | $20.27 M | -20.66% | 0.57% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 05/15/2026 | 383.81 K | $18.48 M | 794.73% | 0.52% |
| AQR CAPITAL MANAGEMENT LLC | 05/15/2026 | 378.70 K | $18.23 M | 7.26% | 0.51% |
| ABRDN PLC | 04/29/2026 | 373.63 K | $17.99 M | -6.73% | 0.50% |
| NOMURA HOLDINGS INC | 05/15/2026 | 342.94 K | $16.51 M | -16.89% | 0.46% |
| OBERWEIS ASSET MANAGEMENT INC/ | 05/15/2026 | 318.63 K | $15.34 M | 1.87% | 0.43% |
| ARROWMARK COLORADO HOLDINGS LLC | 05/15/2026 | 316.96 K | $15.26 M | -5.02% | 0.43% |
| MARSHALL WACE, LLP | 05/15/2026 | 305.37 K | $14.70 M | 5,165.02% | 0.41% |
| PENN CAPITAL MANAGEMENT COMPANY, LLC | 05/07/2026 | 301.99 K | $14.56 M | 100.00% | 0.41% |
| SEI INVESTMENTS CO | 05/13/2026 | 284.01 K | $13.67 M | 30.58% | 0.38% |
| BRAIDWELL LP | 05/15/2026 | 272.52 K | $13.12 M | -13.16% | 0.37% |
| PARKMAN HEALTHCARE PARTNERS LLC | 05/15/2026 | 259.18 K | $12.48 M | -61.04% | 0.35% |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 05/11/2026 | 249.28 K | $12.00 M | -0.68% | 0.34% |
| NEW YORK STATE COMMON RETIREMENT FUND | 05/06/2026 | 209.62 K | $10.09 M | 100.00% | 0.28% |
| GRANAHAN INVESTMENT MANAGEMENT, LLC | 05/15/2026 | 209.26 K | $10.08 M | -33.82% | 0.28% |
| CASTLEARK MANAGEMENT LLC | 05/15/2026 | 181.51 K | $8.74 M | -5.56% | 0.24% |
| PEREGRINE CAPITAL MANAGEMENT LLC | 04/23/2026 | 181.36 K | $8.73 M | -14.01% | 0.24% |
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Kiniksa Pharmaceuticals International Plc. institutional Ownership - FAQ's
During the previous two years, 286 institutional investors and hedge funds held shares of Kiniksa Pharmaceuticals International Plc.. The most heavily invested institutionals were:
FMR LLC: 6.82 M
Rubric Capital Management LP: 3.75 M
BAKER BROS. ADVISORS LP: 2.83 M
TANG CAPITAL MANAGEMENT LLC: 2.26 M
ACADIAN ASSET MANAGEMENT LLC: 1.34 M
MORGAN STANLEY: 997,786
61.19% of Kiniksa Pharmaceuticals International Plc. stock is owned by institutional investors.
Institutional investors have bought a total of 56.57 M shares in the last 24 months. This purchase volume represents approximately $2.64 B in transactions.