Eric Siemers Acumen Pharmaceuticals, Inc. (ABOS) insider trading activity

Eric Siemers is Chief Medical Officer of Acumen Pharmaceuticals, Inc.. Currently has a direct ownership of 159,464 shares of ABOS, which is worth approximately $283,845. The most recent transaction as insider was on Jan 06, 2026, when has been sold 6,834 shares (Common Stock) at a price of $1.97 per share, resulting in proceeds of $13,462. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 159K

6.36% 3M change

8.1% 12M change

Total Value Held $283,845

Eric Siemers Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Jan 06 2026	SELL Open market or private sale	$13,462 $1.97 p/Share	6,834 Reduced 4.11%	159,464 Common Stock
Jan 05 2026	SELL Open market or private sale	$7,840 $1.96 p/Share	4,000 Reduced 2.35%	166,298 Common Stock
Jan 21 2025	SELL Open market or private sale	$5,118 $1.59 p/Share	3,219 Reduced 1.86%	170,298 Common Stock
Jan 06 2025	BUY Grant, award, or other acquisition	-	66,800 Added 27.8%	173,517 Common Stock
Jan 03 2025	SELL Open market or private sale	$20,089 $1.85 p/Share	10,859 Reduced 9.24%	106,717 Common Stock
Jan 18 2024	SELL Open market or private sale	$11,590 $3.71 p/Share	3,124 Reduced 2.59%	117,576 Common Stock
Jan 02 2024	BUY Grant, award, or other acquisition	-	94,000 Added 43.78%	120,700 Common Stock

Jan 17 2023	BUY Grant, award, or other acquisition	-	26,700 Added 50.0%	26,700 Common Stock

Eric Siemers

Chief Medical Officer

Charlottesville, VA

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