SEI Investments’s Kiniksa Pharmaceuticals KNSA Stock Holding History

SEI Investments’s Portfolio KNSA Stock Details KNSA Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$12.1M	Sell	188,565 -95,440	-34%	-$4.95M	0.01%	1042
2026 Q1	$13.7M	Buy	284,005 +66,509	+31%	+$2.95M	0.01%	965
2025 Q4	$8.97M	Buy	217,496 +46,327	+27%	+$1.86M	0.01%	1105
2025 Q3	$6.65M	Buy	171,169 +69,673	+69%	+$2.26M	0.01%	1187
2025 Q2	$2.81M	Buy	101,496 +25,860	+34%	+$658K	﹤0.01%	1511
2025 Q1	$1.68M	Buy	75,636 +33,452	+79%	+$689K	﹤0.01%	1706
2024 Q4	$834K	Sell	42,184 -2,354	-5%	-$53.7K	﹤0.01%	2018
2024 Q3	$1.11M	Buy	44,538 +5,562	+14%	+$135K	﹤0.01%	1911
2024 Q2	$728K	Sell	38,976 -34,505	-47%	-$646K	﹤0.01%	2026
2024 Q1	$1.45M	Buy	+73,481	New	+$1.44M	﹤0.01%	1752
2023 Q4	–	Sell	-20,819	Closed	-$362K	–	2652
2023 Q3	$362K	Buy	+20,819	New	+$351K	﹤0.01%	2232

Other funds holding KNSA

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

RCMNY

Rubric Capital Management (New York) New York $10.9B AUM 70.31% 1-Year Est. Return

BBA

Baker Bros. Advisors New York $20B AUM 154.41% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

TCM

Tang Capital Management San Diego, California $2.2B AUM 156.35% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return

SSC

Spruce Street Capital New York $510M AUM

SEI Investments's KNSA Position: Q2 2026 in Review

SEI Investments reduced its Kiniksa Pharmaceuticals (KNSA) stake by 34% in Q2 2026, selling an estimated $4.95M and leaving 188,565 shares worth $12.1M. The position accounts for 0.01% of the portfolio, ranked #1042.

SEI Investments first reported a position in KNSA in Q3 2023 and has held it in 11 quarters since. The position peaked at $13.7M in Q1 2026. 266 funds tracked by Wall St. Rank hold KNSA as of Q2 2026.

SEI Investments held 188,565 shares of Kiniksa Pharmaceuticals worth $12.1M as of Q2 2026.
SEI Investments sold 95,440 Kiniksa Pharmaceuticals shares in Q2 2026, an estimated $4.95M.
Kiniksa Pharmaceuticals made up 0.01% of SEI Investments's portfolio in Q2 2026, its #1042 holding.
SEI Investments first reported a position in Kiniksa Pharmaceuticals in Q3 2023 and has held it in 11 quarters since.
SEI Investments's Kiniksa Pharmaceuticals position peaked at $13.7M in Q1 2026.
266 funds tracked by Wall St. Rank held Kiniksa Pharmaceuticals as of Q2 2026.

Based on SEI Investments's 13F filing for Q2 2026, filed 14 Aug 2026.