Kiniksa Pharmaceuticals International, plc Class A Ordinary Shares (KNSA)
PHARMACEUTICAL PREPARATIONS
Kiniksa Pharmaceuticals International, plc Class A Ordinary Shares (KNSA) is listed on Nasdaq, where it has traded since May 24, 2018.
- Listed On
- Nasdaq
- Listed Since
- May 24, 2018
- Employees
- 366
- Market Cap
- $7.5B
About Kiniksa Pharmaceuticals International, plc Class A Ordinary Shares
Kiniksa Pharmaceuticals International PLC is a clinical-stage biopharmaceutical company focused on discovering, acquiring, developing, and commercializing therapeutic medicines for patients suffering from debilitating cardiovascular diseases. The company's clinical-stage product candidates include Rilonacept, abiprubart, and Vixarelimab. Geographically, the company earns maximum revenue from United States.
Institutional ownership
In 13F filings for the quarter ended June 30, 2026, 259 institutions reported holding KNSA, with 46.8 million shares worth $3.0 billion in aggregate. The largest reported holder was FMR, with 7.0 million shares worth $445.8 million. Of the 5 largest holders listed below, all 5 added shares during the quarter.
| Institution | Shares | Value | Quarter change |
|---|---|---|---|
| FMR | 6,971,361 | $446M | Added 2.16% |
| Rubric Capital Management | 3,999,800 | $256M | Added 6.66% |
| Vanguard | 3,384,723 | $216M | Added 6.97% |
| Baker Bros. Advisors | 2,834,643 | $181M | Added 0.3% |
| BlackRock | 2,739,615 | $175M | Added 462.85% |
Form 13F is a quarterly report that institutional investment managers with at least $100 million in qualifying securities file with the SEC. It lists long positions as of the last day of the quarter and is due within 45 days of quarter end, so these holdings describe that date rather than today.
Frequently asked questions
What is KNSA?
Kiniksa Pharmaceuticals International, plc Class A Ordinary Shares (KNSA) is listed on Nasdaq, where it has traded since May 24, 2018.
Who are the largest institutional holders of KNSA?
In 13F filings for the quarter ended June 30, 2026, the largest reported holders of KNSA were FMR, Rubric Capital Management and Vanguard.
How many institutions own KNSA?
259 institutions reported a position in KNSA for the quarter ended June 30, 2026, worth $3.0 billion in total.
Did institutions buy or sell KNSA last quarter?
Of the 5 largest reported holders, all 5 added shares during the quarter. Every reported holder and its change is on the SentiSense ownership page for KNSA.
Every reported institutional holder, plus insider and congressional trades in KNSA, on SentiSense.