Kiniksa Pharmaceuticals International

KNSA · NASDAQ

$83.17+$3.69 (+4.64%)TodayMarket closed ·
Prev close $79.48

Who owns KNSA

Largest institutional holders, from their latest 13F filings

The 10 largest institutions hold 27.4% of KNSA’s shares.

  • Braidwell LP4.4%
  • The Vanguard Group, Inc.4.1%
  • Baker Bros. Advisors LP3.6%
  • Rubric Capital Management LP3.4%
  • Next 6 largest institutions11.9%
  • All other shareholders72.6%
Top institutional holders of KNSA
HolderShares% of shares
Braidwell LP3.45M4.43%
The Vanguard Group, Inc.3.20M4.10%
Baker Bros. Advisors LP2.82M3.61%
Rubric Capital Management LP2.62M3.36%
BlackRock Institutional Trust Company, N.A.2.55M3.27%
Fairmount Funds Management LLC2.19M2.81%
HHLR Advisors, Ltd.1.58M2.03%
Pictet Asset Management Ltd.1.13M1.45%
Desnick (Robert)1.05M1.35%
Nuveen LLC791.88K1.01%

Largest mutual fund holders

Top mutual fund holders of KNSA
HolderShares% of shares
Vanguard Total Stock Market Index Fund1.16M1.48%
iShares Russell 2000 ETF1.05M1.35%
Vanguard Small-Cap Index Fund953.23K1.22%
Pictet-Biotech661.40K0.85%
Vanguard Small-Cap Growth Index Fund538.25K0.69%

Insider trades

Form 4 filings by officers, directors and large holders

Over the last 6 months, insiders sold $33.50M (12 trades) of KNSA on the open market, with no buys.

Latest KNSA insider transactions
InsiderTypeSharesValue
Megna Michael RSale4.60K$369.38K
Moat RossOption exercise2.48K—
Moat RossOption exercise1.61K—
Moat RossOption exercise1.74K—
Moat RossOption exercise2.46K—
Moat RossAward36.95K—
Moat RossAward9.25K—
Moat RossTax withholding4.01K$317.67K
Moat RossOption exercise2.46K—
Moat RossOption exercise1.74K—

Short interest

Settled Sep 30, 2026

Shares short
3.78M
Days to cover
6.41
% of shares outstanding
4.84%
Average daily volume
589.06K
Change since last report
−2.5%

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