Kiniksa Pharmaceuticals International, plc

KNSA

Exchange: Nasdaq
Industry: Pharmaceutical Preparations
SEC CIK: 0001730430

SEC filings (opens in a new tab)

In the last 90 days, Kiniksa Pharmaceuticals International, plc insiders filed 0 open-market purchases and 2 sales; 267 institutions reported holding it in 13F filings for Q2 2026, worth $2.99B in total; no superinvestor holds it.

Q4 2025 vs. Q3 2025

How the institutions holding Kiniksa Pharmaceuticals International, plc changed between Q3 2025 and Q4 2025.

All holders in Q4 2025 All holders in Q3 2025

13F holders of KNSA: Q3 2025 compared with Q4 2025
Measure	Q3 2025	Of which not filed for Q4 2025	Q4 2025	Change
Holders	204	4	224	+24
Shares	40.8M	416.2K	43.0M	+2.55M (+6.3%)
Value	$1.59B	$16.2M	$1.77B	+$202.9M (+12.9%)

4 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (42)

Institutions that held Kiniksa Pharmaceuticals International, plc at the end of Q4 2025 but not at the end of Q3 2025.

Institutions new to KNSA in Q4 2025
Institution	Shares	Value	% of portfolio
Victory Capital Management Inc	512,163	$21.1M	0.01%
Spruce Street Capital LP	434,982	$17.9M	5.93%
Logos Global Management LP	350,000	$14.4M	0.96%
Alliancebernstein L.P.	328,274	$13.5M	0.00%
OrbiMed Advisors LLC	187,199	$7.72M	0.16%
Atika Capital Management LLC	93,970	$3.88M	0.54%
SummitTX Capital, L.P.	48,808	$2.01M	0.06%
Manufacturers Life Insurance Company, The	40,429	$1.66M	0.00%
OpenArc Corporate Advisory, LLC	33,862	$1.40M	0.02%
Public Employees Retirement System of Ohio	28,955	$1.19M	0.00%
Amundi	23,496	$969.2K	0.00%
Kornitzer Capital Management Inc	22,091	$911.3K	0.02%
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main	16,525	$681.7K	0.00%
Magnetar Financial LLC	15,295	$630.9K	0.01%
BIT Capital GmbH	12,800	$528.0K	0.02%
PSP Research LLC	12,655	$522.0K	0.46%
National Asset Management, Inc.	11,993	$494.7K	0.02%
Skopos Labs, Inc.	11,968	$490.6K	0.02%
State of New Jersey Common Pension Fund D	11,871	$489.7K	0.00%
Twinbeech Capital LP	10,828	$446.7K	0.03%
HighTower Advisors, LLC	8,724	$359.9K	0.00%
Prelude Capital Management, LLC	7,070	$291.6K	0.02%
XTX Topco Ltd	7,062	$291.3K	0.01%
Virtu Financial LLC	6,466	$267.0K	0.01%
Two Sigma Securities, LLC	6,136	$253.1K	0.03%
Holocene Advisors, LP	5,715	$235.7K	0.00%
Sanctuary Advisors, LLC	5,391	$222.4K	0.00%
Financiere des Professionnels - Fonds d,investissement inc.	5,376	$221.8K	0.01%
Franklin Resources Inc	4,943	$203.9K	0.00%
Swiss Life Asset Management Ltd	4,894	$201.9K	0.00%
Aquatic Capital Management LLC	1,939	$80.0K	0.00%
Nano Cap New Millennium Growth Fund L P	1,000	$41.3K	0.04%
CIBC Private Wealth Group, LLC	1,000	$41.3K	0.00%
Smartleaf Asset Management LLC	889	$36.4K	0.00%
Jones Financial Companies LLLP	277	$11.4K	0.00%
Group One Trading, L.P.	200	$8.25K	0.00%
Aster Capital Management (DIFC) Ltd	155	$6.39K	0.00%
Global Retirement Partners, LLC	103	$4.25K	0.00%
Basecamp Wealth Advisors LLC	79	$3.26K	0.00%
Cornerstone Financial Management LLC	32	$1.32K	0.00%
Optima Capital LLC	18	$743	0.00%
MAI Capital Management	5	$207	0.00%

Sold out (18)

Institutions that held Kiniksa Pharmaceuticals International, plc at the end of Q3 2025 and filed for Q4 2025 without it.

Institutions that sold out of KNSA in Q4 2025
Institution	Shares, Q3 2025	Value, Q3 2025
Silverarc Capital Management, LLC	88,910	$3.45M
Adage Capital Partners GP, L.L.C.	59,000	$2.29M
Dark Forest Capital Management LP	43,346	$1.68M
Algert Global LLC	35,847	$1.39M
Danske Bank A/S	30,389	$1.18M
Birchview Capital, LP	30,000	$1.16M
Lion Point Capital, LP	23,400	$908.6K
Aigen Investment Management, LP	19,777	$767.9K
Prosperity Wealth Management, Inc.	13,900	$539.7K
Kingsview Wealth Management, LLC	9,941	$386.0K
Baader Bank INC	9,040	$351.0K
Martingale Asset Management L P	8,100	$314.5K
HSBC Holdings PLC	8,080	$308.1K
PharVision Advisers, LLC	6,722	$261.0K
Bailard, Inc.	5,854	$227.3K
Omers Administration Corp	5,800	$225.2K
Marquette Asset Management, LLC	61	$2.37K
Optiver Holding B.V.	26	$1.01K

Not filed for Q4 2025 yet (4)

Institutions that held Kiniksa Pharmaceuticals International, plc at the end of Q3 2025 and haven't filed a 13F for Q4 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding KNSA in Q3 2025 that haven't filed for Q4 2025
Institution	Shares, Q3 2025	Value, Q3 2025
Cubist Systematic Strategies, LLC	381,319	$14.8M
Sheets Smith Investment Management	16,992	$659.8K
Point72 Asia (Singapore) Pte. Ltd.	11,101	$431.1K
Bryce Point Capital, LLC	6,831	$265.2K