Fidelity Investments
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Fidelity Investments’s Acumen Pharmaceuticals ABOS Stock Holding History

Fidelity Investments’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 		$20.1K Sell
7,530
-1,149,816
-99% -$2.84M ﹤0.01% 4666
2026
Q1 		$2.73M Sell
1,157,346
-870,151
-43% -$2.22M ﹤0.01% 2537
2025
Q4 		$4.28M Sell
2,027,497
-1,828
-0.1% -$3.63K ﹤0.01% 2337
2025
Q3 		$3.47M Sell
2,029,325
-411
-0% -$569 ﹤0.01% 2353
2025
Q2 		$2.35M Buy
2,029,736
+4,113
+0.2% +$4.42K ﹤0.01% 2438
2025
Q1 		$2.23M Buy
2,025,623
+1,863
+0.1% +$2.66K ﹤0.01% 2409
2024
Q4 		$3.48M Sell
2,023,760
-4,357
-0.2% -$10.5K ﹤0.01% 2273
2024
Q3 		$5.03M Buy
2,028,117
+6,014
+0.3% +$16.3K ﹤0.01% 2125
2024
Q2 		$4.89M Sell
2,022,103
-66,897
-3% -$213K ﹤0.01% 2085
2024
Q1 		$8.46M Buy
+2,089,000
New +$7.87M ﹤0.01% 1927
2023
Q4 		– Sell
-657
Closed -$2.73K – 5418
2023
Q3 		$2.73K Buy
657
+180
+38% +$1.11K ﹤0.01% 4466
2023
Q2 		$2.29K Sell
477
-202
-30% -$967 ﹤0.01% 4558
2023
Q1 		$2.76K Sell
679
-220
-24% -$1.15K ﹤0.01% 4547
2022
Q4 		$4.86K Hold
899
– – ﹤0.01% 4265
2022
Q3 		$9K Hold
899
– – ﹤0.01% 4108
2022
Q2 		$4K Sell
899
-939
-51% -$3.53K ﹤0.01% 4353
2022
Q1 		$7K Sell
1,838
-11,462
-86% -$62.4K ﹤0.01% 4322
2021
Q4 		$90K Sell
13,300
-93,800
-88% -$1.03M ﹤0.01% 3109
2021
Q3 		$1.59M Buy
+107,100
New +$1.78M ﹤0.01% 2619

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

Fidelity Investments's ABOS Position: Q2 2026 in Review

Fidelity Investments reduced its Acumen Pharmaceuticals (ABOS) stake by 99% in Q2 2026, selling an estimated $2.84M and leaving 7,530 shares worth $20.1K. The position accounts for ﹤0.01% of the portfolio, ranked #4666.

Fidelity Investments first reported a position in ABOS in Q3 2021 and has held it in 19 quarters since. The position peaked at $8.46M in Q1 2024. 96 funds tracked by Wall St. Rank hold ABOS as of Q2 2026.

  • Fidelity Investments held 7,530 shares of Acumen Pharmaceuticals worth $20.1K as of Q2 2026.
  • Fidelity Investments sold 1,149,816 Acumen Pharmaceuticals shares in Q2 2026, an estimated $2.84M.
  • Acumen Pharmaceuticals made up ﹤0.01% of Fidelity Investments's portfolio in Q2 2026, its #4666 holding.
  • Fidelity Investments first reported a position in Acumen Pharmaceuticals in Q3 2021 and has held it in 19 quarters since.
  • Fidelity Investments's Acumen Pharmaceuticals position peaked at $8.46M in Q1 2024.
  • 96 funds tracked by Wall St. Rank held Acumen Pharmaceuticals as of Q2 2026.

Based on Fidelity Investments's 13F filing for Q2 2026, filed 13 Aug 2026.