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ABOSNasdaq
Acumen Pharmaceuticals, Inc.
Biological Products, (No Diagnostic Substances) · DE · CIK 1576885
Developing a novel disease-modifying therapy targeting a key cause of Alzheimer's disease
$171M
Market cap
$2.77
Last close
+17.4%
1D
+15.4%
5D
852K
Volume
Price · last 39 sessions+11.7%
May 4L $2.15 · H $2.77Jun 29
96
Total filings
Jun 16, 2026
Last filing
12/31
Fiscal year end
8-KReg FD Disclosure · Company UpdateJun 16, 20268-KShareholder VoteJun 3, 202610-Q10-QMay 12, 20268-KResults of Operations · Reg FD DisclosureMay 12, 2026DEFA14ADEFA14AApr 23, 2026DEF 14ADEF 14AApr 23, 202610-K10-KMar 26, 20268-KResults of Operations · Reg FD DisclosureMar 26, 2026SC 13D/ASC 13D/AMar 17, 20268-KMaterial Agreement · Equity IssuanceMar 16, 20268-KReg FD DisclosureJan 12, 2026424B5424B5Nov 13, 202510-Q10-QNov 12, 20258-KResults of Operations · Reg FD DisclosureNov 12, 20258-KExecutive Change · Reg FD DisclosureNov 10, 202510-Q10-QAug 12, 20258-KResults of Operations · Reg FD DisclosureAug 12, 20258-KMaterial Agreement · Reg FD DisclosureJul 15, 20258-KShareholder VoteJun 5, 202510-Q10-QMay 13, 20258-KResults of Operations · Reg FD DisclosureMay 13, 2025DEFA14ADEFA14AApr 23, 2025DEF 14ADEF 14AApr 23, 202510-K10-KMar 27, 20258-KResults of Operations · Reg FD DisclosureMar 27, 202510-Q10-QNov 12, 20248-KResults of Operations · Reg FD DisclosureNov 12, 202410-Q10-QAug 13, 20248-KResults of Operations · Reg FD DisclosureAug 13, 20248-KShareholder VoteJun 5, 202410-Q10-QMay 14, 20248-KResults of Operations · Reg FD DisclosureMay 14, 2024DEFA14ADEFA14AApr 22, 2024DEF 14ADEF 14AApr 22, 202410-K10-KMar 26, 20248-KResults of OperationsMar 26, 20248-KResults of Operations · Reg FD DisclosureMar 19, 20248-KExecutive Change · Reg FD DisclosureFeb 1, 20248-KReg FD DisclosureJan 12, 20248-KReg FD DisclosureJan 8, 20248-KReg FD DisclosureDec 4, 20238-KReg FD DisclosureNov 13, 202310-Q10-QNov 13, 20238-KResults of Operations · Reg FD DisclosureNov 13, 20238-KMaterial AgreementNov 9, 202310-Q10-QAug 8, 20238-KResults of Operations · Reg FD DisclosureAug 8, 2023424B5424B5Jul 20, 20238-KMaterial Agreement · Company UpdateJul 20, 2023424B5424B5Jul 17, 20238-KResults of OperationsJul 17, 20238-KReg FD Disclosure · Company UpdateJul 17, 20238-KBylaw Amendment · Shareholder VoteJun 8, 202310-Q10-QMay 9, 20238-KResults of Operations · Reg FD DisclosureMay 9, 2023DEFA14ADEFA14AApr 28, 2023DEF 14ADEF 14AApr 27, 2023424B5424B5Apr 27, 20238-KMaterial Agreement · Company UpdateApr 27, 202310-K10-KMar 27, 20238-KResults of Operations · Reg FD DisclosureMar 27, 20238-KBylaw AmendmentMar 15, 20238-KReg FD Disclosure · Company UpdateFeb 1, 20238-KExecutive ChangeJan 4, 202310-Q10-QNov 14, 20228-KResults of Operations · Reg FD DisclosureNov 14, 20228-KCompany UpdateOct 24, 20228-KReg FD DisclosureSep 12, 202210-Q10-QAug 15, 20228-KExecutive Change · Results of OperationsAug 15, 20228-KReg FD DisclosureAug 1, 20228-KShareholder VoteJun 21, 202210-Q10-QMay 16, 20228-KResults of OperationsMay 16, 2022DEFA14ADEFA14AApr 27, 2022DEF 14ADEF 14AApr 27, 202210-K10-KMar 28, 20228-KResults of OperationsMar 28, 2022SC 13GSCHEDULE 13GFeb 16, 2022SC 13GSCHEDULE FILED TO REPORT ACQUISITION OF BENEFICIAL OWNERSHIPFeb 15, 2022
Insider Activity
In the 90 days to Mar 6, 2026: 7 sold $536K.
| Date | Insider | Action | Shares | Price | Value |
|---|---|---|---|---|---|
| Mar 6, 2026 | Meisner Derek MChief Legal Officer & Corp Sec | Sell | 2,090 | $3.26 | $7K |
| Feb 27, 2026 | Meisner Derek MChief Legal Officer & Corp Sec | Sell | 9,406 | $3.01 | $28K |
| Jan 28, 2026 | Meisner Derek MChief Legal Officer & Corp Sec | Sell | 2,671 | $3.00 | $8K |
| Jan 26, 2026 | Meisner Derek MChief Legal Officer & Corp Sec | Sell | 15,085 | $3.00 | $45K |
| Jan 23, 2026 | Meisner Derek MChief Legal Officer & Corp Sec | Sell | 5,633 | $1.90 | $11K |
| Jan 22, 2026 | Oconnell Daniel JosephChief Executive Officer | Sell | 2,689 | $1.88 | $5K |
| Jan 22, 2026 | Zuga MattCFO & Chief Business Officer | Sell | 1,687 | $1.86 | $3K |
| Jan 22, 2026 | Meisner Derek MChief Legal Officer & Corp Sec | Sell | 1,054 | $1.84 | $2K |
| Jan 22, 2026 | Siemers EricChief Medical Officer | Sell | 895 | $1.82 | $2K |
| Jan 22, 2026 | Barton RussellChief Operating Officer | Sell | 462 | $1.84 | $850 |
| Jan 21, 2026 | Oconnell Daniel JosephChief Executive Officer | Sell | 9,346 | $1.81 | $17K |
| Jan 21, 2026 | Zuga MattCFO & Chief Business Officer | Sell | 2,473 | $1.81 | $4K |
| Jan 21, 2026 | Siemers EricChief Medical Officer | Sell | 2,331 | $1.80 | $4K |
| Jan 21, 2026 | Barton RussellChief Operating Officer | Sell | 2,315 | $1.81 | $4K |
| Jan 21, 2026 | Meisner Derek MChief Legal Officer & Corp Sec | Sell | 2,247 | $1.81 | $4K |
| Jan 12, 2026 | Meisner Derek MChief Legal Officer & Corp Sec | Sell | 8,548 | $1.71 | $15K |
| Jan 12, 2026 | Oconnell Daniel JosephChief Executive Officer | Sell | 5,388 | $1.73 | $9K |
| Jan 9, 2026 | Oconnell Daniel JosephChief Executive Officer | Sell | 12,941 | $1.76 | $23K |
| Jan 9, 2026 | Meisner Derek MChief Legal Officer & Corp Sec | Sell | 5,200 | $1.76 | $9K |
| Jan 8, 2026 | Meisner Derek MChief Legal Officer & Corp Sec | Sell | 30,092 | $1.82 | $55K |
Open-market buys & sells (Form 4, transaction codes P/S). Source: SEC structured insider data.
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