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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
2023
Q4 		– Sell
-53,800
Closed -$223K – 6009
2023
Q3 		$223K Sell
53,800
-140,300
-72% -$867K ﹤0.01% 5065
2023
Q2 		$934K Buy
+194,100
New +$929K ﹤0.01% 4097
2022
Q4 		– Sell
-65,000
Closed -$652K – 6517
2022
Q3 		$652K Buy
+65,000
New +$373K ﹤0.01% 4724

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.