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Israel Englander’s Acumen Pharmaceuticals ABOS Stock Holding History

Israel Englander’s Portfolio ABOS Stock Details ABOS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$162K Sell
60,598
-599,077
-91% -$1.48M ﹤0.01% 5374
2026
Q1 		$1.56M Buy
659,675
+75,532
+13% +$193K ﹤0.01% 4081
2025
Q4 		$1.23M Sell
584,143
-17,573
-3% -$34.9K ﹤0.01% 4335
2025
Q3 		$1.03M Sell
601,716
-1,348,404
-69% -$1.87M ﹤0.01% 4608
2025
Q2 		$2.26M Buy
1,950,120
+814,898
+72% +$876K ﹤0.01% 3771
2025
Q1 		$1.25M Sell
1,135,222
-209,523
-16% -$299K ﹤0.01% 4185
2024
Q4 		$2.31M Sell
1,344,745
-490,008
-27% -$1.18M ﹤0.01% 3511
2024
Q3 		$4.55M Sell
1,834,753
-119,332
-6% -$324K ﹤0.01% 2925
2024
Q2 		$4.73M Sell
1,954,085
-675,456
-26% -$2.15M ﹤0.01% 2779
2024
Q1 		$10.6M Buy
2,629,541
+1,134,257
+76% +$4.28M ﹤0.01% 2125
2023
Q4 		$5.74M Sell
1,495,284
-221,006
-13% -$656K ﹤0.01% 2672
2023
Q3 		$7.12M Buy
1,716,290
+570,272
+50% +$3.52M ﹤0.01% 2379
2023
Q2 		$5.51M Buy
1,146,018
+500,135
+77% +$2.39M ﹤0.01% 2588
2023
Q1 		$2.62M Sell
645,883
-19,833
-3% -$104K ﹤0.01% 3175
2022
Q4 		$3.6M Buy
665,716
+195,224
+41% +$1.31M ﹤0.01% 3081
2022
Q3 		$4.72M Sell
470,492
-117,091
-20% -$672K ﹤0.01% 2940
2022
Q2 		$2.76M Buy
+587,583
New +$2.21M ﹤0.01% 3381
2022
Q1 		– Sell
-37,163
Closed -$251K – 6827
2021
Q4 		$251K Buy
+37,163
New +$409K ﹤0.01% 5704

Other funds holding ABOS

RCM
RA Capital Management Boston, Massachusetts $11.5B AUM 168.77% 1-Year Est. Return
SCV
Sands Capital Ventures Arlington, Virginia $614M AUM 19.92% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Alyeska Investment Group
Alyeska Investment Group Chicago, Illinois $38.9B AUM 28.51% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $462B AUM 39.16% 1-Year Est. Return
ACM
ADAR1 Capital Management Austin, Texas $2.19B AUM 374.99% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
KIA
Knollwood Investment Advisory Hunt Valley, Maryland $1.12B AUM 41.02% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
IC
Ikarian Capital Dallas, Texas $928M AUM 596.14% 1-Year Est. Return

Israel Englander's ABOS Position: Q2 2026 in Review

Israel Englander reduced its Acumen Pharmaceuticals (ABOS) stake by 91% in Q2 2026, selling an estimated $1.48M and leaving 60,598 shares worth $162K. The position accounts for ﹤0.01% of the portfolio, ranked #5374.

Israel Englander first reported a position in ABOS in Q4 2021 and has held it in 18 quarters since. The position peaked at $10.6M in Q1 2024. 96 funds tracked by Wall St. Rank hold ABOS as of Q2 2026.

  • Israel Englander held 60,598 shares of Acumen Pharmaceuticals worth $162K as of Q2 2026.
  • Israel Englander sold 599,077 Acumen Pharmaceuticals shares in Q2 2026, an estimated $1.48M.
  • Acumen Pharmaceuticals made up ﹤0.01% of Israel Englander's portfolio in Q2 2026, its #5374 holding.
  • Israel Englander first reported a position in Acumen Pharmaceuticals in Q4 2021 and has held it in 18 quarters since.
  • Israel Englander's Acumen Pharmaceuticals position peaked at $10.6M in Q1 2024.
  • 96 funds tracked by Wall St. Rank held Acumen Pharmaceuticals as of Q2 2026.

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