Acadian Asset Management
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Acadian Asset Management’s Kiniksa Pharmaceuticals KNSA Stock Holding History

Acadian Asset 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 		$43.4M Sell
679,083
-657,230
-49% -$34.1M 0.05% 281
2026
Q1 		$64.3M Sell
1,336,313
-376,730
-22% -$16.7M 0.09% 190
2025
Q4 		$70.6M Buy
1,713,043
+94,522
+6% +$3.79M 0.12% 159
2025
Q3 		$62.8M Buy
1,618,521
+350,532
+28% +$11.4M 0.11% 171
2025
Q2 		$35.1M Buy
1,267,989
+233,668
+23% +$5.95M 0.07% 223
2025
Q1 		$23M Buy
1,034,321
+651,700
+170% +$13.4M 0.06% 209
2024
Q4 		$7.56M Buy
382,621
+276,402
+260% +$6.31M 0.02% 418
2024
Q3 		$2.65M Buy
106,219
+48,989
+86% +$1.19M 0.01% 668
2024
Q2 		$1.07M Sell
57,230
-107,338
-65% -$2.01M ﹤0.01% 970
2024
Q1 		$3.24M Buy
164,568
+103,120
+168% +$2.01M 0.01% 560
2023
Q4 		$1.08M Sell
61,448
-164,733
-73% -$2.71M ﹤0.01% 839
2023
Q3 		$3.92M Buy
226,181
+203,933
+917% +$3.44M 0.02% 508
2023
Q2 		$310K Buy
22,248
+5,089
+30% +$68.1K ﹤0.01% 1175
2023
Q1 		$183K Buy
17,159
+4,145
+32% +$54.6K ﹤0.01% 1273
2022
Q4 		$193K Buy
+13,014
New +$189K ﹤0.01% 1285
2020
Q3 		– Sell
-14,021
Closed -$357K – 2265
2020
Q2 		$357K Buy
14,021
+8,326
+146% +$174K ﹤0.01% 1312
2020
Q1 		$88K Buy
+5,695
New +$89.1K ﹤0.01% 1375

Other funds holding KNSA

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return
SSC
Spruce Street Capital New York $510M AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
RHJA
Rice Hall James & Associates San Diego, California $2.05B AUM 43.16% 1-Year Est. Return
Pictet Asset Management
Pictet Asset Management Carouge, Switzerland $105B AUM 38.07% 1-Year Est. Return

Acadian Asset Management's KNSA Position: Q2 2026 in Review

Acadian Asset Management reduced its Kiniksa Pharmaceuticals (KNSA) stake by 49% in Q2 2026, selling an estimated $34.1M and leaving 679,083 shares worth $43.4M. The position accounts for 0.05% of the portfolio, ranked #281.

Acadian Asset Management first reported a position in KNSA in Q1 2020 and has held it in 17 quarters since. The position peaked at $70.6M in Q4 2025. 191 funds tracked by Wall St. Rank hold KNSA as of Q2 2026.

  • Acadian Asset Management held 679,083 shares of Kiniksa Pharmaceuticals worth $43.4M as of Q2 2026.
  • Acadian Asset Management sold 657,230 Kiniksa Pharmaceuticals shares in Q2 2026, an estimated $34.1M.
  • Kiniksa Pharmaceuticals made up 0.05% of Acadian Asset Management's portfolio in Q2 2026, its #281 holding.
  • Acadian Asset Management first reported a position in Kiniksa Pharmaceuticals in Q1 2020 and has held it in 17 quarters since.
  • Acadian Asset Management's Kiniksa Pharmaceuticals position peaked at $70.6M in Q4 2025.
  • 191 funds tracked by Wall St. Rank held Kiniksa Pharmaceuticals as of Q2 2026.

Based on Acadian Asset Management's 13F filing for Q2 2026, filed 13 Aug 2026.