Derek M Meisner Acumen Pharmaceuticals, Inc. (ABOS) insider trading activity

Derek M Meisner is Chief Legal Officer & Corp Sec of Acumen Pharmaceuticals, Inc.. Currently has a direct ownership of 83,800 shares of ABOS, which is worth approximately $149,164. The most recent transaction as insider was on Jan 12, 2026, when has been sold 8,548 shares (Common Stock) at a price of $1.71 per share, resulting in proceeds of $14,617. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 83.8K

47.99% 3M change

49.07% 12M change

Total Value Held $149,164

Derek M Meisner Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Jan 12 2026	SELL Open market or private sale	$14,617 $1.71 p/Share	8,548 Reduced 9.26%	83,800 Common Stock
Jan 09 2026	SELL Open market or private sale	$9,152 $1.76 p/Share	5,200 Reduced 5.33%	92,348 Common Stock
Jan 08 2026	SELL Open market or private sale	$67,178 $1.82 p/Share	36,911 Reduced 27.45%	97,548 Common Stock
Jan 07 2026	SELL Open market or private sale	$23,422 $1.99 p/Share	11,770 Reduced 8.05%	134,459 Common Stock
Jan 06 2026	SELL Open market or private sale	$21,469 $1.97 p/Share	10,898 Reduced 6.94%	146,229 Common Stock
Jan 05 2026	SELL Open market or private sale	$7,840 $1.96 p/Share	4,000 Reduced 2.48%	157,127 Common Stock
Jan 21 2025	SELL Open market or private sale	$5,434 $1.59 p/Share	3,418 Reduced 2.08%	161,127 Common Stock

Jan 06 2025	BUY Grant, award, or other acquisition	-	66,800 Added 28.87%	164,545 Common Stock
Jan 03 2025	SELL Open market or private sale	$20,464 $1.84 p/Share	11,122 Reduced 10.22%	97,745 Common Stock
Jan 19 2024	SELL Open market or private sale	$31,086 $3.48 p/Share	8,933 Reduced 7.58%	108,867 Common Stock
Jan 02 2024	BUY Grant, award, or other acquisition	-	91,000 Added 43.58%	117,800 Common Stock
Jan 17 2023	BUY Grant, award, or other acquisition	-	26,800 Added 50.0%	26,800 Common Stock

Also insider at

XFOR

X4 Pharmaceuticals, Inc Healthcare

Chief Legal Officer

DMM

Derek M Meisner

Chief Legal Officer & Corp Sec

Boston, MA

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