Kiniksa Pharmaceuticals International, plc - Common Stock (KNSA)

CUSIP: G52694109

Q2 2026 13F Holders as of 30 Jun 2026

Security type / class
Equity / Common Stock
Total 13F shares
46,936,395
Total 13F value
$2,992,781,887
Holder snapshot 6 visible 7 signals
Share change
+1,669,247
Put/Call ratio
357%
SEC-reported price per share
$63.95
Number of holders
265
Value change
+$125,527,864
Number of buys
153
Open additional details 1 more signal available
Number of sells
106
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
46,087,073

Security key

G52694109

Report period

Q2 2026

Institutions

265

Top holders

10

KNSA full security history Ownership snapshot Full 13F holder table Newer quarter: Q3 2026 Kiniksa Pharmaceuticals International, plc SEC filings Kiniksa Pharmaceuticals International, plc company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Ownership snapshot

Top reported holders of KNSA - Kiniksa Pharmaceuticals International, plc - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
FMR LLC
Disclosed value leader
FMR LLC
Comparable rows
6/15
Latest evidence
30 Jun 2026
13F 13D/G 3/4/5 Lead comparable stake: 15% 9 rows are not safely comparable across share classes. 13D/G row: FMR LLC Showing 1-6 of 15 holder rows.

Quick read

FMR LLC leads the comparable SEC ownership view at 15%.

6 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens FMR LLC's linked filing trail.
Comparable ownership Top 5
FMR LLC 15%
Rubric Capital Management LP 7.4%
VANGUARD GROUP INC 7%
BAKER BROS. ADVISORS LP 7%
BlackRock, Inc. 5.5%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
FMR LLC
13F 13D/G
Company
13F 13D/G
15%
Reported 13D/G · 31 Mar 2026
$328,561,167
6,823,700 shares
 — 31 Mar 2026
Rubric Capital Management LP
13F 13D/G
Company
13F 13D/G
7.4%
Reported 13D/G · 31 Dec 2025
$180,562,500
3,750,000 shares
 — 31 Mar 2026
VANGUARD GROUP INC
13D/G
The Vanguard Group
13D/G
7%
Reported 13D/G · 30 Sep 2025
$118,941,532
3,063,135 shares
 $0 30 Sep 2025
BAKER BROS. ADVISORS LP
13D/G 3/4/5 13F
Julian C. Baker · Director · Company
13D/G 3/4/5 13F
7%
Reported 13D/G · 21 May 2026
$140,056,330
3,253,341 shares
 $0 21 May 2026
BlackRock, Inc.
13D/G 13F
Company
13D/G 13F
5.5%
Reported 13D/G · 30 Jun 2026
$162,099,757
2,534,789 shares
 +$135,359,000 30 Jun 2026
TANG CAPITAL MANAGEMENT LLC
13F 13D/G
Company
13F 13D/G
5.2%
Reported 13D/G · 28 Mar 2025
$108,813,655
2,259,889 shares
 — 31 Mar 2026
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q2 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
265
Shares
46,936,395
Rows available
265
Investor Option Weight % Change % SEC-reported value * Price Shares Share Change Activity Report Period

* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q2 2026 vs Q1 2026 Across Filers

Q1 2026 holders
226
Q2 2026 holders
265
Holder diff
39
Investor Q1 2026 Shares Q2 2026 Shares Share Diff Share Chg % Q1 2026 value Q2 2026 value Value change Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
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