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John Overdeck’s Acumen Pharmaceuticals ABOS Stock Holding History

John Overdeck’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 		$1.66M Buy
622,882
+92,070
+17% +$227K ﹤0.01% 3164
2026
Q1 		$1.25M Buy
530,812
+387,591
+271% +$989K ﹤0.01% 3088
2025
Q4 		$302K Sell
143,221
-56,225
-28% -$112K ﹤0.01% 3567
2025
Q3 		$341K Sell
199,446
-1,339
-0.7% -$1.85K ﹤0.01% 3161
2025
Q2 		$233K Sell
200,785
-31,508
-14% -$33.9K ﹤0.01% 2871
2025
Q1 		$256K Sell
232,293
-68,975
-23% -$98.5K ﹤0.01% 2777
2024
Q4 		$518K Sell
301,268
-8,239
-3% -$19.8K ﹤0.01% 2524
2024
Q3 		$768K Sell
309,507
-1,290
-0.4% -$3.5K ﹤0.01% 2263
2024
Q2 		$752K Buy
310,797
+132,896
+75% +$423K ﹤0.01% 2148
2024
Q1 		$720K Sell
177,901
-66,515
-27% -$251K ﹤0.01% 2150
2023
Q4 		$939K Buy
244,416
+112,065
+85% +$333K ﹤0.01% 2119
2023
Q3 		$549K Buy
132,351
+105,716
+397% +$653K ﹤0.01% 2236
2023
Q2 		$128K Sell
26,635
-27,447
-51% -$131K ﹤0.01% 2724
2023
Q1 		$220K Sell
54,082
-33,794
-38% -$176K ﹤0.01% 2527
2022
Q4 		$475K Buy
+87,876
New +$590K ﹤0.01% 2045
2022
Q3 		– Sell
-15,311
Closed -$72K – 2434
2022
Q2 		$72K Buy
+15,311
New +$57.5K ﹤0.01% 2311

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

John Overdeck's ABOS Position: Q2 2026 in Review

John Overdeck increased its Acumen Pharmaceuticals (ABOS) stake by 17% in Q2 2026, buying an estimated $227K and bringing the position to 622,882 shares worth $1.66M. The position accounts for ﹤0.01% of the portfolio, ranked #3164.

John Overdeck first reported a position in ABOS in Q2 2022 and has held it in 16 quarters since. 96 funds tracked by Wall St. Rank hold ABOS as of Q2 2026.

  • John Overdeck held 622,882 shares of Acumen Pharmaceuticals worth $1.66M as of Q2 2026.
  • John Overdeck bought 92,070 Acumen Pharmaceuticals shares in Q2 2026, an estimated $227K.
  • Acumen Pharmaceuticals made up ﹤0.01% of John Overdeck's portfolio in Q2 2026, its #3164 holding.
  • John Overdeck first reported a position in Acumen Pharmaceuticals in Q2 2022 and has held it in 16 quarters since.
  • 96 funds tracked by Wall St. Rank held Acumen Pharmaceuticals as of Q2 2026.

Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.