KNSA Kiniksa Pharmaceuticals, Ltd.
Kiniksa Pharmaceuticals, Ltd. (KNSA) Institutional Ownership
What the institutions did with KNSA last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| FMR LLC | 7.0M | 14.9% |
| Rubric Capital Management LP | 4.0M | 8.5% |
| BAKER BROS. ADVISORS LP | 2.8M | 6.0% |
| BlackRock, Inc. | 2.7M | 5.8% |
| TANG CAPITAL MANAGEMENT LLC | 2.3M | 4.8% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.9M | 4.1% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.4M | 2.9% |
| MORGAN STANLEY | 1.0M | 2.2% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 957.5K | 2.0% |
| Spruce Street Capital LP | 918.1K | 2.0% |
| DIMENSIONAL FUND ADVISORS LP | 874.8K | 1.9% |
| Invesco Ltd. | 772.8K | 1.6% |
| Driehaus Capital Management LLC | 718.2K | 1.5% |
| STATE STREET CORP | 704.2K | 1.5% |
| ACADIAN ASSET MANAGEMENT LLC | 679.1K | 1.4% |
| Point72 Asset Management, L.P. | 659.5K | 1.4% |
| RICE HALL JAMES & ASSOCIATES, LLC | 624.9K | 1.3% |
| Pictet Asset Management Holding SA | 608.7K | 1.3% |
| GEODE CAPITAL MANAGEMENT, LLC | 604.2K | 1.3% |
| Jupiter Topco LLC | 586.2K | 1.2% |
| Connor, Clark & Lunn Investment Management Ltd. | 572.6K | 1.2% |
| D. E. Shaw & Co., Inc. | 569.8K | 1.2% |
| TWO SIGMA INVESTMENTS, LP | 561.5K | 1.2% |
| ALLIANCEBERNSTEIN L.P. | 556.2K | 1.2% |
| VICTORY CAPITAL MANAGEMENT INC | 504.9K | 1.1% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| BlackRock, Inc. | Increased | 486.7K | 2.7M | +2.3M |
| Invesco Ltd. | Increased | 27.7K | 772.8K | +745.2K |
| ACADIAN ASSET MANAGEMENT LLC | Reduced | 1.3M | 679.1K | -657.2K |
| STATE STREET CORP | Increased | 76.6K | 704.2K | +627.6K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 44.3K | 604.2K | +559.9K |
| MILLENNIUM MANAGEMENT LLC | Reduced | 564.4K | 93.4K | -471.1K |
| CITADEL ADVISORS LLC | Reduced | 474.8K | 41.7K | -433.1K |
| D. E. Shaw & Co., Inc. | Reduced | 959.3K | 569.8K | -389.5K |
| Qube Research & Technologies Ltd | Reduced | 686.9K | 304.1K | -382.8K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 383.8K | 18.2K | -365.6K |
| BANK OF AMERICA CORP /DE/ | Reduced | 735.9K | 413.4K | -322.5K |
| MARSHALL WACE, LLP | Sold Out | 305.4K | 0 | -305.4K |
| NORTHERN TRUST CORP | Increased | 36.9K | 315.2K | +278.3K |
| Soleus Capital Management, L.P. | Reduced | 521.4K | 246.4K | -275.0K |
| Parkman Healthcare Partners LLC | Sold Out | 259.2K | 0 | -259.2K |
| Rubric Capital Management LP | Increased | 3.8M | 4.0M | +249.8K |
| ORBIMED ADVISORS LLC | Increased | 180.6K | 420.6K | +240.0K |
| Bank of New York Mellon Corp | Increased | 17.4K | 232.5K | +215.1K |
| BNP PARIBAS FINANCIAL MARKETS | Reduced | 647.7K | 437.2K | -210.5K |
| STEMPOINT CAPITAL LP | New | 0 | 209.2K | +209.2K |
| Balyasny Asset Management L.P. | Reduced | 499.8K | 309.7K | -190.1K |
| Spruce Street Capital LP | Increased | 761.1K | 918.1K | +157.0K |
| FMR LLC | Increased | 6.8M | 7.0M | +147.7K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 1.8M | 1.9M | +145.1K |
| TWO SIGMA INVESTMENTS, LP | Increased | 420.9K | 561.5K | +140.6K |
| SG Americas Securities, LLC | Reduced | 640.2K | 504.0K | -136.2K |
| DEUTSCHE BANK AG\ | Reduced | 523.7K | 387.6K | -136.1K |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | Sold Out | 134.5K | 0 | -134.5K |
| Driehaus Capital Management LLC | Increased | 611.4K | 718.2K | +106.8K |
| ArrowMark Colorado Holdings LLC | Reduced | 317.0K | 215.5K | -101.4K |
| Nuveen, LLC | Increased | 26.9K | 127.3K | +100.3K |
| SEI INVESTMENTS CO | Reduced | 284.0K | 188.6K | -95.4K |
| OBERWEIS ASSET MANAGEMENT INC/ | Increased | 318.6K | 413.0K | +94.4K |
| BRAIDWELL LP | Reduced | 272.5K | 183.8K | -88.7K |
| Voleon Capital Management LP | Reduced | 120.4K | 32.8K | -87.6K |
| Man Group plc | Reduced | 127.2K | 40.5K | -86.7K |
| Trexquant Investment LP | Reduced | 135.3K | 53.5K | -81.8K |
| Connor, Clark & Lunn Investment Management Ltd. | Reduced | 649.6K | 572.6K | -77.0K |
| JPMORGAN CHASE & CO | Reduced | 107.0K | 31.6K | -75.5K |
| NOMURA HOLDINGS INC | Reduced | 342.9K | 270.7K | -72.2K |
| SEGALL BRYANT & HAMILL, LLC | New | 0 | 71.9K | +71.9K |
| RENAISSANCE TECHNOLOGIES LLC | New | 0 | 68.1K | +68.1K |
| Hennion & Walsh Asset Management, Inc. | Sold Out | 67.3K | 0 | -67.3K |
| Linden Thomas Advisory Services, LLC | Reduced | 121.8K | 54.8K | -67.0K |
| Penn Capital Management Company, LLC | Increased | 302.0K | 368.1K | +66.1K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Increased | 892.7K | 957.5K | +64.8K |
| NEW YORK STATE COMMON RETIREMENT FUND | Increased | 209.6K | 272.6K | +63.0K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 811.9K | 874.8K | +62.9K |
| Granahan Investment Management, LLC | Reduced | 209.3K | 151.7K | -57.5K |
| Lisanti Capital Growth, LLC | Increased | 31.1K | 87.3K | +56.2K |
| TRUIST FINANCIAL CORP | New | 0 | 51.7K | +51.7K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Increased | 50.3K | 101.6K | +51.3K |
| RHUMBLINE ADVISERS | Increased | 7.3K | 58.5K | +51.2K |
| Fieldview Capital Management, LLC | Sold Out | 51.1K | 0 | -51.1K |
| Allspring Global Investments Holdings, LLC | Increased | 15.4K | 65.1K | +49.7K |
| AMERICAN CENTURY COMPANIES INC | Increased | 7.3K | 56.4K | +49.1K |
| Brevan Howard Capital Management LP | Reduced | 53.9K | 5.0K | -48.9K |
| OpenArc Corporate Advisory, LLC | Sold Out | 48.4K | 0 | -48.4K |
| LAZARD ASSET MANAGEMENT LLC | Increased | 21.4K | 67.3K | +45.9K |
| Schonfeld Strategic Advisors LLC | Sold Out | 43.6K | 0 | -43.6K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.