Caption Management’s Kiniksa Pharmaceuticals KNSA Stock Holding History

Caption Management’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	$19.2M	Buy	+299,800	New	+$15.6M	0.09%	241
2025 Q4	–	Sell	-90,000	Closed	-$3.49M	–	1849
2025 Q3	$3.49M	Sell	90,000 -1,052,500	-92%	-$34.2M	0.03%	620
2025 Q2	$31.6M	Buy	1,142,500 +1,112,500	+3,708%	+$28.3M	0.35%	48
2025 Q1	$666K	Buy	+30,000	New	+$617K	0.01%	1024
2024 Q4	–	Sell	-30,000	Closed	-$750K	–	1655
2024 Q3	$750K	Buy	+30,000	New	+$731K	0.01%	848
2024 Q1	–	Sell	-195,100	Closed	-$3.42M	–	1453
2023 Q4	$3.42M	Buy	195,100 +105,100	+117%	+$1.73M	0.05%	467
2023 Q3	$1.56M	Buy	90,000 +30,000	+50%	+$505K	0.02%	642
2023 Q2	$845K	Sell	60,000 -5,000	-8%	-$66.9K	0.02%	702
2023 Q1	$699K	Buy	65,000 +30,000	+86%	+$395K	0.01%	713
2022 Q4	$524K	Buy	35,000 +5,000	+17%	+$72.8K	0.01%	913
2022 Q3	$386K	Sell	30,000 -30,000	-50%	-$342K	0.01%	1127
2022 Q2	$581K	Sell	60,000 -45,000	-43%	-$420K	0.01%	1040
2022 Q1	$1.04M	Buy	105,000 +30,000	+40%	+$318K	0.01%	959
2021 Q4	$883K	Buy	75,000 +45,000	+150%	+$553K	0.01%	1089
2021 Q3	$342K	Hold	30,000	–	–	﹤0.01%	1270
2021 Q2	$418K	Sell	30,000 -30,000	-50%	-$456K	0.01%	1084
2021 Q1	$1.11M	Buy	60,000 +30,000	+100%	+$614K	0.02%	663
2020 Q4	$530K	Sell	30,000 -500	-2%	-$8.78K	0.01%	731
2020 Q3	$467K	Buy	+30,500	New	+$573K	0.01%	784

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

Caption Management's KNSA Position: Q2 2026 in Review

Caption Management opened a new position in Kiniksa Pharmaceuticals (KNSA) in Q2 2026: 25,000 shares worth $1.6M. The stake represents 0.01% of the portfolio and ranks #977 among its holdings. This is a return to the name: Caption Management previously reported a position in KNSA as recently as Q2 2024.

Caption Management first reported a position in KNSA in Q3 2020 and has held it in 10 quarters since. 266 funds tracked by Wall St. Rank hold KNSA as of Q2 2026.

Caption Management held 25,000 shares of Kiniksa Pharmaceuticals worth $1.6M as of Q2 2026.
Kiniksa Pharmaceuticals was a new Caption Management position in Q2 2026.
Kiniksa Pharmaceuticals made up 0.01% of Caption Management's portfolio in Q2 2026, its #977 holding.
Caption Management first reported a position in Kiniksa Pharmaceuticals in Q3 2020 and has held it in 10 quarters since.
266 funds tracked by Wall St. Rank held Kiniksa Pharmaceuticals as of Q2 2026.

Based on Caption Management's 13F filing for Q2 2026, filed 14 Aug 2026.