Dimensional Fund Advisors
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Dimensional Fund Advisors’s Acumen Pharmaceuticals ABOS Stock Holding History

Dimensional Fund Advisors’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
Q1 		$282K Buy
119,756
+70,694
+144% +$180K ﹤0.01% 3018
2025
Q4 		$104K Buy
49,062
+5,538
+13% +$11K ﹤0.01% 3142
2025
Q3 		$74.4K Hold
43,524
– – ﹤0.01% 3217
2025
Q2 		$50.5K Hold
43,524
– – ﹤0.01% 3236
2025
Q1 		$47.9K Sell
43,524
-54,492
-56% -$77.8K ﹤0.01% 3262
2024
Q4 		$169K Buy
98,016
+41,460
+73% +$99.8K ﹤0.01% 3186
2024
Q3 		$140K Buy
56,556
+8
+0% +$22 ﹤0.01% 3211
2024
Q2 		$137K Sell
56,548
-5,180
-8% -$16.5K ﹤0.01% 3212
2024
Q1 		$250K Buy
61,728
+5,937
+11% +$22.4K ﹤0.01% 3158
2023
Q4 		$214K Sell
55,791
-19,811
-26% -$58.8K ﹤0.01% 3186
2023
Q3 		$314K Buy
75,602
+6,623
+10% +$40.9K ﹤0.01% 3130
2023
Q2 		$332K Buy
68,979
+2,200
+3% +$10.5K ﹤0.01% 3142
2023
Q1 		$271K Buy
+66,779
New +$349K ﹤0.01% 3147

Other funds holding ABOS

RCM
RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return
SCV
Sands Capital Ventures Arlington, Virginia $421M AUM 26.25% 1-Year Est. Return
Alyeska Investment Group
Alyeska Investment Group Chicago, Illinois $35.4B AUM 33.54% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $408B AUM 30.18% 1-Year Est. Return
ACM
ADAR1 Capital Management Austin, Texas $1.7B AUM 340.85% 1-Year Est. Return
KIA
Knollwood Investment Advisory Hunt Valley, Maryland $992M AUM 28.95% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
IC
Ikarian Capital Dallas, Texas $1.23B AUM 600.17% 1-Year Est. Return
Hudson Bay Capital Management
Hudson Bay Capital Management Stamford, Connecticut $29B AUM 30.2% 1-Year Est. Return

Dimensional Fund Advisors's ABOS Position: Q1 2026 in Review

Dimensional Fund Advisors increased its Acumen Pharmaceuticals (ABOS) stake by 144% in Q1 2026, buying an estimated $180K and bringing the position to 119,756 shares worth $282K. The position accounts for ﹤0.01% of the portfolio, ranked #3018.

Dimensional Fund Advisors first reported a position in ABOS in Q1 2023 and has held it in 13 quarters since. The position peaked at $332K in Q2 2023. 84 funds tracked by Wall St. Rank hold ABOS as of Q1 2026.

  • Dimensional Fund Advisors held 119,756 shares of Acumen Pharmaceuticals worth $282K as of Q1 2026.
  • Dimensional Fund Advisors bought 70,694 Acumen Pharmaceuticals shares in Q1 2026, an estimated $180K.
  • Acumen Pharmaceuticals made up ﹤0.01% of Dimensional Fund Advisors's portfolio in Q1 2026, its #3018 holding.
  • Dimensional Fund Advisors first reported a position in Acumen Pharmaceuticals in Q1 2023 and has held it in 13 quarters since.
  • Dimensional Fund Advisors's Acumen Pharmaceuticals position peaked at $332K in Q2 2023.
  • 84 funds tracked by Wall St. Rank held Acumen Pharmaceuticals as of Q1 2026.

Based on Dimensional Fund Advisors's 13F filing for Q1 2026, filed 7 May 2026.