Derrell Porter - 15 Jun 2026 Form 4 Insider Report for Acumen Pharmaceuticals, Inc. (ABOS)

Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
4
Accepted by SEC
17 Jun 2026, 17:10:15 UTC
Prior SEC filing
05 Jun 2026
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Derek Meisner, Attorney-in-Fact

Key filing fact

Derrell Porter filed Form 4 for Acumen Pharmaceuticals, Inc. (ABOS) on 17 Jun 2026.

Key facts

  • This page summarizes Derrell Porter's Form 4 filing for Acumen Pharmaceuticals, Inc. (ABOS).
  • 7 reported transactions and 2 derivative rows are listed below.
  • Accepted by SEC: 17 Jun 2026, 17:10.

Change

  • Previous filing in this sequence was filed on 05 Jun 2026.
  • Current net transaction value: -$75,240.

Research use

  • This tells you what this filing adds before you inspect full transaction and derivative tables.
  • You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001706400 Primary reporting owner

Porter Derrell

Relationship
Director
Address
C/O ACUMEN PHARMACEUTICALS, INC., 1210-1220 WASHINGTON STREET, SUITE 210, NEWTON
Signature
/s/ Derek Meisner, Attorney-in-Fact
Signature date
17 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ABOS transaction

Common Stock

Options Exercise

Transaction value
Shares
+6,460
Change %
+13%
Price
$1.07*
Shares after
54,760
Date
15 Jun 2026
Ownership
Direct
ABOS transaction

Common Stock

Sale

Transaction value
$15,149
Shares
-6,460
Change %
-12%
Price
$2.34
Shares after
48,300
Date
15 Jun 2026
Ownership
Direct
ABOS transaction

Common Stock

Sale

Transaction value
$29,773
Shares
-12,800
Change %
-27%
Price
$2.33
Shares after
35,500
Date
16 Jun 2026
Ownership
Direct
Footnotes
F1
ABOS transaction

Common Stock

Options Exercise

Transaction value
Shares
+13,040
Change %
+37%
Price
$1.07*
Shares after
48,540
Date
17 Jun 2026
Ownership
Direct
ABOS transaction

Common Stock

Sale

Transaction value
$30,318
Shares
-13,040
Change %
-27%
Price
$2.32
Shares after
35,500
Date
17 Jun 2026
Ownership
Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

ABOS transaction Derivative

Stock Option (right to buy)

Options Exercise

Transaction value
Shares
-6,460
Change %
-33%
Price
$0.000000*
Shares after
13,040
Date
15 Jun 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
6,460
Exercise price
$1.07
Footnotes
F2
ABOS transaction Derivative

Stock Option (right to buy)

Options Exercise

Transaction value
Shares
-13,040
Change %
-100%
Price
$0.000000*
Shares after
0
Date
17 Jun 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
13,040
Exercise price
$1.07
Footnotes
F2
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $2.305 to $2.345. Upon request, the Reporting Person will provide to the staff of the Securities and Exchange Commission, the Issuer, or any security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Footnote F2

The shares subject to the option vested in full on the date of the 2026 annual stockholder meeting.

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