Kiniksa Pharmaceuticals International, plc (KNSA) — Institutional Holders, Q2 2026

266 institutional investment managers reported a KNSA position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $3.0B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← KNSA stock profile

KNSA in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

Added to

Trimmed

Sold out

Biggest buyers

BlackRockAdded · +2,252,878 sh+$144.1M
Invesco Ltd.Added · +745,150 sh+$47.7M
STATE STREETAdded · +627,561 sh+$40.1M
GEODE CAPITAL MANAGEMENTAdded · +559,860 sh+$35.8M
NORTHERNAdded · +278,322 sh+$17.8M

Biggest sellers

ACADIAN ASSET MANAGEMENTTrimmed · -657,230 sh-$42.0M
MILLENNIUM MANAGEMENTTrimmed · -471,056 sh-$30.1M
CITADEL ADVISORSTrimmed · -433,085 sh-$27.7M
D. E. ShawTrimmed · -389,501 sh-$24.9M
Qube Research & Technologies LtdTrimmed · -382,773 sh-$24.5M

KNSA 13F holders ranked 1–100 of 266

Institutional investors reporting a position in Kiniksa Pharmaceuticals International, plc on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	FMR#1 · 6,971,361 sh	6,971,361	$445.8M	0.02%	+2.2%
2	Rubric Capital Management#2 · 3,999,800 sh	3,999,800	$255.8M	2.35%	+6.7%
3	BAKER BROS. ADVISORS#3 · 2,834,643 sh	2,834,643	$181.3M	0.91%	+0.3%
4	BlackRock#4 · 2,739,615 sh	2,739,615	$175.2M	<0.01%	+462.9%
5	TANG CAPITAL MANAGEMENT#5 · 2,259,889 sh	2,259,889	$144.5M	6.56%	0.0%
6	VANGUARD PORTFOLIO MANAGEMENT#6 · 1,911,335 sh	1,911,335	$122.2M	<0.01%	+8.2%
7	VANGUARD CAPITAL MANAGEMENT#7 · 1,360,840 sh	1,360,840	$87.0M	<0.01%	+2.1%
8	MORGAN STANLEY#8 · 1,011,143 sh	1,011,143	$64.7M	<0.01%	+1.3%
9	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP#9 · 957,514 sh	957,514	$61.2M	0.03%	+7.3%
10	Spruce Street Capital#10 · 918,070 sh	918,070	$58.7M	11.52%	+20.6%
11	DIMENSIONAL FUND ADVISORS#11 · 874,786 sh	874,786	$55.9M	0.01%	+7.7%
12	Invesco Ltd.#12 · 772,806 sh	772,806	$49.4M	<0.01%	+2694.4%
13	DRIEHAUS CAPITAL MANAGEMENT#13 · 718,199 sh	718,199	$45.9M	0.27%	+17.5%
14	STATE STREET#14 · 704,194 sh	704,194	$45.0M	<0.01%	+818.9%
15	ACADIAN ASSET MANAGEMENT#15 · 679,083 sh	679,083	$43.4M	0.05%	-49.2%
16	Point72 Asset Management, L.P.#16 · 659,493 sh	659,493	$42.2M	0.05%	+2.9%
17	RICE HALL JAMES & ASSOCIATES#17 · 624,928 sh	624,928	$40.0M	1.95%	+2.7%
18	Pictet Asset Management Holding SA#18 · 608,650 sh	608,650	$38.9M	0.04%	-2.3%
19	GEODE CAPITAL MANAGEMENT#19 · 604,180 sh	604,180	$38.6M	<0.01%	+1263.2%
20	Jupiter Topco#20 · 586,177 sh	586,177	$37.5M	0.02%	—
21	Connor, Clark & Lunn Investment Management Ltd.#21 · 572,598 sh	572,598	$36.6M	0.07%	-11.9%
22	D. E. Shaw#22 · 569,756 sh	569,756	$36.4M	0.02%	-40.6%
23	TWO SIGMA INVESTMENTS#23 · 561,480 sh	561,480	$35.9M	0.03%	+33.4%
24	VICTORY CAPITAL MANAGEMENT#24 · 504,853 sh	504,853	$32.3M	0.02%	-0.3%
25	SG Americas Securities#25 · 504,001 sh	504,001	$32.2M	0.02%	-21.3%
26	BNP PARIBAS FINANCIAL MARKETS#26 · 437,192 sh	437,192	$28.0M	<0.01%	-32.5%
27	MASSACHUSETTS FINANCIAL SERVICES#27 · 431,324 sh	431,324	$27.6M	<0.01%	-1.5%
28	ORBIMED ADVISORS#28 · 420,600 sh	420,600	$26.9M	0.50%	+132.9%
29	ALLIANCEBERNSTEIN L.P.#29 · 556,151 sh	556,151	$26.8M	<0.01%	-7.1%
30	BANK OF AMERICA#30 · 413,411 sh	413,411	$26.4M	<0.01%	-43.8%
31	OBERWEIS ASSET MANAGEMENT#31 · 413,034 sh	413,034	$26.4M	0.55%	+29.6%
32	abrdn plc#32 · 403,485 sh	403,485	$25.8M	0.04%	+8.0%
33	Fisher Asset Management#33 · 398,266 sh	398,266	$25.5M	<0.01%	-7.2%
34	DEUTSCHE BANK AG\#34 · 387,606 sh	387,606	$24.8M	<0.01%	-26.0%
35	AQR CAPITAL MANAGEMENT#35 · 375,039 sh	375,039	$24.0M	<0.01%	-1.0%
36	Penn Capital Management Company#36 · 368,114 sh	368,114	$23.6M	1.49%	+21.9%
37	NORTHERN#37 · 315,246 sh	315,246	$20.2M	<0.01%	+753.8%
38	BALYASNY ASSET MANAGEMENT L.P.#38 · 309,682 sh	309,682	$19.8M	0.02%	-38.0%
39	Qube Research & Technologies Ltd#39 · 304,080 sh	304,080	$19.4M	0.02%	-55.7%
40	NEW YORK STATE COMMON RETIREMENT FUND#40 · 272,579 sh	272,579	$17.4M	0.02%	+30.0%
41	NOMURA#41 · 270,724 sh	270,724	$17.3M	0.02%	-21.1%
42	Soleus Capital Management, L.P.#42 · 246,353 sh	246,353	$15.8M	0.54%	-52.7%
43	ESSEX INVESTMENT MANAGEMENT#43 · 241,382 sh	241,382	$15.4M	—	-3.2%
44	Bank of New York Mellon#44 · 232,531 sh	232,531	$14.9M	<0.01%	+1237.3%
45	ArrowMark Colorado#45 · 215,546 sh	215,546	$13.8M	0.57%	-32.0%
46	StemPoint Capital#46 · 209,234 sh	209,234	$13.4M	2.30%	New
47	GOLDMAN SACHS GROUP#47 · 191,364 sh	191,364	$12.2M	<0.01%	+9.4%
48	SEI INVESTMENTS#48 · 188,565 sh	188,565	$12.1M	0.01%	-33.6%
49	BRAIDWELL#49 · 183,822 sh	183,822	$11.8M	0.43%	-32.5%
50	CASTLEARK MANAGEMENT#50 · 174,032 sh	174,032	$11.1M	0.30%	-4.1%
51	Rockefeller Capital Management L.P.#51 · 173,438 sh	173,438	$11.1M	0.02%	0.0%
52	PEREGRINE CAPITAL MANAGEMENT#52 · 161,464 sh	161,464	$10.3M	0.34%	-11.0%
53	Granahan Investment Management#53 · 151,725 sh	151,725	$9.7M	0.35%	-27.5%
54	Squarepoint Ops#54 · 140,059 sh	140,059	$9.0M	<0.01%	-11.4%
55	Nuveen#55 · 127,255 sh	127,255	$8.1M	<0.01%	+372.2%
56	SILVERCREST ASSET MANAGEMENT GROUP#56 · 109,359 sh	109,359	$7.0M	0.05%	-4.3%
57	NORDEA INVESTMENT MANAGEMENT AB#57 · 107,157 sh	107,157	$6.8M	<0.01%	+0.5%
58	CHARLES SCHWAB INVESTMENT MANAGEMENT#58 · 101,575 sh	101,575	$6.5M	<0.01%	+101.9%
59	Universal- Beteiligungs- und Servicegesellschaft mbH#59 · 99,852 sh	99,852	$6.4M	<0.01%	-4.6%
60	GLOBEFLEX CAPITAL L P#60 · 93,396 sh	93,396	$6.0M	0.76%	0.0%
61	MILLENNIUM MANAGEMENT#61 · 93,364 sh	93,364	$6.0M	<0.01%	-83.5%
62	Lisanti Capital Growth#62 · 87,305 sh	87,305	$5.6M	1.23%	+181.0%
63	Swiss National Bank#63 · 73,700 sh	73,700	$4.7M	<0.01%	+3.1%
64	VANGUARD FIDUCIARY#64 · 72,351 sh	72,351	$4.6M	<0.01%	+125.4%
65	SEGALL BRYANT & HAMILL#65 · 71,901 sh	71,901	$4.6M	0.05%	New
66	RENAISSANCE TECHNOLOGIES#66 · 68,077 sh	68,077	$4.4M	<0.01%	New
67	MANUFACTURERS LIFE INSURANCE COMPANY, THE#67 · 67,715 sh	67,715	$4.3M	<0.01%	+6.9%
68	LAZARD ASSET MANAGEMENT#68 · 67,291 sh	67,291	$4.3M	<0.01%	+214.0%
69	Allspring Global Investments#69 · 65,097 sh	65,097	$4.2M	<0.01%	+323.9%
70	RHUMBLINE ADVISERS#70 · 58,529 sh	58,529	$3.7M	<0.01%	+703.3%
71	AMERICAN CENTURY COMPANIES#71 · 56,408 sh	56,408	$3.6M	<0.01%	+672.5%
72	Informed Momentum#72 · 55,765 sh	55,765	$3.6M	0.32%	-1.3%
73	Linden Thomas Advisory Services#73 · 54,803 sh	54,803	$3.5M	—	-55.0%
74	Trexquant Investment#74 · 53,507 sh	53,507	$3.4M	0.02%	-60.4%
75	HEALTHCARE OF ONTARIO PENSION PLAN FUND#75 · 52,700 sh	52,700	$3.4M	<0.01%	-40.5%
76	TRUIST FINANCIAL#76 · 51,671 sh	51,671	$3.3M	<0.01%	New
77	LOS ANGELES CAPITAL MANAGEMENT#77 · 50,786 sh	50,786	$3.2M	0.01%	+212.9%
78	WELLS FARGO & COMPANY#78 · 48,677 sh	48,677	$3.1M	<0.01%	+481.7%
79	UBS Group AG#79 · 45,174 sh	45,174	$2.9M	<0.01%	-35.2%
80	CITADEL ADVISORS#80 · 41,665 sh	41,665	$2.7M	<0.01%	-91.2%
81	Aquatic Capital Management#81 · 41,528 sh	41,528	$2.7M	0.09%	+850.5%
82	MUTUAL OF AMERICA CAPITAL MANAGEMENT#82 · 41,504 sh	41,504	$2.7M	—	New
83	PDT Partners#83 · 40,567 sh	40,567	$2.6M	0.14%	-49.5%
84	Man Group plc#84 · 40,524 sh	40,524	$2.6M	<0.01%	-68.1%
85	CITIGROUP#85 · 40,513 sh	40,513	$2.6M	<0.01%	+20.2%
86	Cerity Partners#86 · 40,488 sh	40,488	$2.6M	<0.01%	-7.4%
87	RAYMOND JAMES FINANCIAL#87 · 38,148 sh	38,148	$2.4M	<0.01%	+22.7%
88	Legal & General Group Plc#88 · 35,549 sh	35,549	$2.3M	<0.01%	+44.5%
89	PRICE T ROWE ASSOCIATES#89 · 34,830 sh	34,830	$2.2M	<0.01%	New
90	Timothy G. Youngquist 2020 Irrevocable#90 · 34,341 sh	34,341	$2.2M	—	New
91	ExodusPoint Capital Management#91 · 33,017 sh	33,017	$2.1M	0.01%	-36.9%
92	Voleon Capital Management#92 · 32,806 sh	32,806	$2.1M	0.04%	-72.7%
93	JPMORGAN CHASE#93 · 31,553 sh	31,553	$2.1M	<0.01%	-70.5%
94	AMERIPRISE FINANCIAL#94 · 32,571 sh	32,571	$2.1M	<0.01%	+2.6%
95	LPL Financial#95 · 32,420 sh	32,420	$2.1M	<0.01%	+54.9%
96	Financial Enhancement Group#96 · 31,391 sh	31,391	$2.0M	—	New
97	Baird Financial Group#97 · 30,708 sh	30,708	$2.0M	<0.01%	-23.7%
98	Penserra Capital Management#98 · 30,226 sh	30,226	$1.9M	0.01%	-43.1%
99	STATE OF WISCONSIN INVESTMENT BOARD#99 · 29,876 sh	29,876	$1.9M	<0.01%	+75.0%
100	IEQ CAPITAL#100 · 29,746 sh	29,746	$1.9M	<0.01%	-30.7%

Funds that sold out of KNSA in Q2 2026 (27)

Held KNSA at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held KNSA in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
MARSHALL WACE, LLP305,371 sh	305,371	$14.7M
Parkman Healthcare Partners259,184 sh	259,184	$12.5M
VOLORIDGE INVESTMENT MANAGEMENT134,516 sh	134,516	$6.5M
Hennion & Walsh Asset Management67,341 sh	67,341	$3.2M
Fieldview Capital Management51,072 sh	51,072	$2.5M
OpenArc Corporate Advisory48,353 sh	48,353	$2.3M
Schonfeld Strategic Advisors43,599 sh	43,599	$2.1M
Jain Global43,027 sh	43,027	$2.1M
Jump Financial39,735 sh	39,735	$1.9M
Inspire Investing35,271 sh	35,271	$1.7M
Hudson Bay Capital Management27,670 sh	27,670	$1.3M
HUSSMAN STRATEGIC ADVISORS21,000 sh	21,000	$1.0M
LANDSCAPE CAPITAL MANAGEMENT, L.L.C.19,492 sh	19,492	$938.5K
OMERS ADMINISTRATION13,100 sh	13,100	$630.8K
Cannon Global Investment Management11,000 sh	11,000	$529.6K
Cynosure Management9,331 sh	9,331	$449.3K
TWINBEECH CAPITAL6,595 sh	6,595	$317.5K
HSBC PLC5,157 sh	5,157	$248.4K
LEUCADIA NATIONAL5,000 sh	5,000	$240.8K
Quantessence Capital4,761 sh	4,761	$229.2K
PRELUDE CAPITAL MANAGEMENT4,594 sh	4,594	$221.2K
MAI Capital Management185 sh	185	$8.9K
Root Financial Partners135 sh	135	$6.5K
Quarry110 sh	110	$5.3K
Western Wealth Management56 sh	56	$2.7K
Caitong International Asset Management , Ltd15 sh	15	$722.00
Advisory Services Network8 sh	8	$385.00

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.