Janus Henderson Group’s Kiniksa Pharmaceuticals KNSA Stock Holding History

Janus Henderson Group’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 Q1	$23.2M	Buy	481,023 +327,595	+214%	+$14.5M	0.01%	577
2025 Q4	$6.33M	Buy	153,428 +141,249	+1,160%	+$5.67M	﹤0.01%	857
2025 Q3	$473K	Hold	12,179	–	–	﹤0.01%	2029
2025 Q2	$337K	Hold	12,179	–	–	﹤0.01%	2123
2025 Q1	$281K	Hold	12,179	–	–	﹤0.01%	2234
2024 Q4	$241K	Hold	12,179	–	–	﹤0.01%	2353
2024 Q3	$304K	Hold	12,179	–	–	﹤0.01%	2266
2024 Q2	$228K	Sell	12,179 -180	-1%	-$3.37K	﹤0.01%	2348
2024 Q1	$244K	Buy	12,359 +6	+0%	+$117	﹤0.01%	2331
2023 Q4	$217K	Sell	12,353 -26	-0.2%	-$427	﹤0.01%	2406
2023 Q3	$215K	Buy	12,379 +3	+0%	+$51	﹤0.01%	2344
2023 Q2	$174K	Hold	12,376	–	–	﹤0.01%	2488
2023 Q1	$133K	Buy	+12,376	New	+$163K	﹤0.01%	2580
2021 Q3	–	Sell	-1,096,252	Closed	-$15.3M	–	2212
2021 Q2	$15.3M	Sell	1,096,252 -30,650	-3%	-$466K	0.01%	852
2021 Q1	$20.9M	Sell	1,126,902 -6,046	-0.5%	-$124K	0.01%	761
2020 Q4	$20M	Buy	1,132,948 +14,687	+1%	+$258K	0.01%	750
2020 Q3	$17.1M	Buy	+1,118,261	New	+$21M	0.01%	741

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

TCM

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

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

D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return

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

Janus Henderson Group's KNSA Position: Q1 2026 in Review

Janus Henderson Group increased its Kiniksa Pharmaceuticals (KNSA) stake by 214% in Q1 2026, buying an estimated $14.5M and bringing the position to 481,023 shares worth $23.2M. The position accounts for 0.01% of the portfolio, ranked #577.

Janus Henderson Group first reported a position in KNSA in Q3 2020 and has held it in 17 quarters since. 228 funds tracked by Wall St. Rank hold KNSA as of Q1 2026.

Janus Henderson Group held 481,023 shares of Kiniksa Pharmaceuticals worth $23.2M as of Q1 2026.
Janus Henderson Group bought 327,595 Kiniksa Pharmaceuticals shares in Q1 2026, an estimated $14.5M.
Kiniksa Pharmaceuticals made up 0.01% of Janus Henderson Group's portfolio in Q1 2026, its #577 holding.
Janus Henderson Group first reported a position in Kiniksa Pharmaceuticals in Q3 2020 and has held it in 17 quarters since.
228 funds tracked by Wall St. Rank held Kiniksa Pharmaceuticals as of Q1 2026.

Based on Janus Henderson Group's 13F filing for Q1 2026, filed 15 May 2026.