Simplex Trading
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Simplex Trading’s Acumen Pharmaceuticals ABOS Stock Holding History

Simplex Trading’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 		– Sell
-17,414
Closed -$43K – 9159
2026
Q1 		$41.1K Buy
+17,414
New +$44.4K ﹤0.01% 6079
2025
Q2 		– Sell
-2,343
Closed -$2.52K – 8482
2025
Q1 		$2K Buy
2,343
+1,152
+97% +$1.65K ﹤0.01% 7911
2024
Q4 		$2K Buy
+1,191
New +$2.87K ﹤0.01% 7957
2024
Q1 		– Sell
-21,422
Closed -$80.7K – 8708
2023
Q4 		$82K Buy
21,422
+9,974
+87% +$29.6K ﹤0.01% 5577
2023
Q3 		$47K Buy
11,448
+6,902
+152% +$42.6K ﹤0.01% 5855
2023
Q2 		$21K Buy
+4,546
New +$21.8K ﹤0.01% 6700
2022
Q3 		– Sell
-2,672
Closed -$15.3K – 9778
2022
Q2 		$12K Buy
+2,672
New +$10K ﹤0.01% 8095

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

Simplex Trading's ABOS Position: Q2 2026 in Review

Simplex Trading sold out of Acumen Pharmaceuticals (ABOS) in Q2 2026, closing a stake of 17,414 shares — an estimated $43K sold.

Simplex Trading first reported a position in ABOS in Q2 2022 and held it in 7 quarters. The position peaked at $82K in Q4 2023. 96 funds tracked by Wall St. Rank hold ABOS as of Q2 2026.

  • Simplex Trading reported no remaining Acumen Pharmaceuticals position as of Q2 2026 after selling out during the quarter.
  • Simplex Trading sold 17,414 Acumen Pharmaceuticals shares in Q2 2026, an estimated $43K.
  • Simplex Trading first reported a position in Acumen Pharmaceuticals in Q2 2022 and held it in 7 quarters.
  • Simplex Trading's Acumen Pharmaceuticals position peaked at $82K in Q4 2023.
  • 96 funds tracked by Wall St. Rank held Acumen Pharmaceuticals as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.