ABOS

Acumen Pharmaceuticals INC

+$33.6M

Net Activity

Institutions Holding

85

Popularity Rank

#4818

Avg Weight

0.05%

Total Value

$108.9M

Ownership Trend

85 institutions currently hold ABOS, with 50 net buyers and 19 net sellers this quarter.

Institutional Moves

Institutional Moves (Q1 2026)

Majority Increased

Based on recent trading activity

Net Selling Institutions

19

Net Buying Institutions

50

Key Holders

Key Holders

Top 5 by Value

RC
Ra Capital Management, L.p.
$49.5M
SC
Sands Capital Alternatives, LLC
$8.8M
AI
Alyeska Investment Group, L.P.
$5.8M
FR
Franklin Resources INC
$5.4M
AC
ADAR1 Capital Management, LLC
$5.1M

Top 5 by Conviction

SC
Sands Capital Alternatives, LLC
2.08%
RC
Ra Capital Management, L.p.
0.52%
KI
Knollwood Investment Advisory, LLC
0.39%
AC
ADAR1 Capital Management, LLC
0.30%
IC
Ikarian Capital, LLC
0.20%
View all 85 holding institutions

Quarterly Activity

Recent Activity

+$88.2M

Total Buy Value

$8.7M

Total Sell Value

New buy18
Trim13
Add32
Sold out6

50

Net Buyers

19

Net Sellers

Insider Trading (Form 4)

Form 144 Pre-Sale Notices

4

Filings (90d)

$90K

Total Est. Value

39K shares

Planned Shares

Last Filed 2026-06-17
FilerFiling DateEst. Value
Porter Derrell2026-06-17$30K
Porter Derrell2026-06-16$30K
Porter Derrell2026-06-15$15K
Fountain Nathan B2026-06-09$14K

Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。

Beneficial Ownership (13D/13G)

No Schedule 13D/13G filings for this ticker

Material Events (8-K)

No Form 8-K filings for this ticker

FAQ

Who are the top institutional investors holding ACUMEN PHARMACEUTICALS INC (ABOS)?
Major stakeholders currently include Ra Capital Management, L.p. ($49.5M), Sands Capital Alternatives, LLC ($8.8M), Alyeska Investment Group, L.P. ($5.8M). Based on the latest 13F filings, there are a total of 85 tracked investment funds and institutions maintaining positions in ABOS.
What is the overall institutional sentiment toward ABOS recently?
Institutional sentiment appears Bullish (Net Buying). During the most recent reporting quarter, the stock experienced a net inflow of $33.6M, driven by 50 managers accumulating shares while 19 reduced their exposure.
Which institutions have been selling or reducing their ABOS positions?
In the latest period, 13 funds trimmed their holdings, and 6 managers completely exited their positions. The aggregate reported sell value was $8.7M.
Are there any notable investors adding ABOS to their portfolios?
Yes, buying activity remains notable. 18 institutions opened new positions in {ticker}, and 32 existing holders added to their shares. The total reported buy value for the quarter amounted to $88.2M.

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