Simplex Trading’s Kiniksa Pharmaceuticals KNSA Stock Holding History

Simplex Trading’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	$385K	Buy	+8,002	New	+$354K	﹤0.01%	3563
2024 Q2	–	Sell	-5,049	Closed	-$94.6K	–	9332
2024 Q1	$99K	Buy	+5,049	New	+$98.6K	﹤0.01%	5586
2023 Q2	–	Sell	-395	Closed	-$5.29K	–	9472
2023 Q1	$4K	Buy	395 +45	+13%	+$593	﹤0.01%	8178
2022 Q4	$5K	Buy	+350	New	+$5.1K	﹤0.01%	8065
2022 Q1	–	Sell	-3,052	Closed	-$32.3K	–	10927
2021 Q4	$35K	Sell	3,052 -19,141	-86%	-$235K	﹤0.01%	7699
2021 Q3	$321K	Buy	22,193 +100	+0.5%	+$1.3K	﹤0.01%	4796
2021 Q2	$307K	Buy	22,093 +15,818	+252%	+$240K	﹤0.01%	4944
2021 Q1	$116K	Buy	+6,275	New	+$128K	﹤0.01%	5541
2020 Q4	–	Sell	-1,166	Closed	-$20.5K	–	8720
2020 Q3	$17K	Buy	1,166 +704	+152%	+$13.2K	﹤0.01%	6459
2020 Q2	$11K	Buy	+462	New	+$9.65K	﹤0.01%	6595

Other funds holding KNSA

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

RCMNY

Rubric Capital Management (New York) New York $9.44B AUM 68.42% 1-Year Est. Return

BBA

Baker Bros. Advisors New York $17.4B AUM 131.5% 1-Year Est. Return

TCM

Tang Capital Management San Diego, California $1.97B AUM 125.1% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return

Simplex Trading's KNSA Position: Q1 2026 in Review

Simplex Trading opened a new position in Kiniksa Pharmaceuticals (KNSA) in Q1 2026: 8,002 shares worth $385K. The stake represents ﹤0.01% of the portfolio and ranks #3563 among its holdings. This is a return to the name: Simplex Trading previously reported a position in KNSA as recently as Q1 2024.

Simplex Trading first reported a position in KNSA in Q2 2020 and has held it in 10 quarters since. 228 funds tracked by Wall St. Rank hold KNSA as of Q1 2026.

Simplex Trading held 8,002 shares of Kiniksa Pharmaceuticals worth $385K as of Q1 2026.
Kiniksa Pharmaceuticals was a new Simplex Trading position in Q1 2026.
Kiniksa Pharmaceuticals made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #3563 holding.
Simplex Trading first reported a position in Kiniksa Pharmaceuticals in Q2 2020 and has held it in 10 quarters since.
228 funds tracked by Wall St. Rank held Kiniksa Pharmaceuticals as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.