Matthew R. Henn Seres Therapeutics, Inc. (MCRB) insider trading activity

Matthew R. Henn is of Seres Therapeutics, Inc.. Currently has a direct ownership of 4,548 shares of MCRB, which is worth approximately $103,921. The most recent transaction as insider was on Aug 18, 2025, when has been sold 73 shares (Common Stock) at a price of $16.65 per share, resulting in proceeds of $1,215. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 4.55K

3.76% 3M change

93.24% 12M change

Total Value Held $103,921

Matthew R. Henn Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Aug 18 2025	SELL Open market or private sale	$1,215 $16.65 p/Share	73 Reduced 1.58%	4,548 Common Stock
Aug 15 2025	BUY Exercise of conversion of derivative security	-	238 Added 4.9%	4,621 Common Stock
May 16 2025	SELL Open market or private sale	$560 $7.28 p/Share	77 Reduced 1.73%	4,383 Common Stock
May 15 2025	BUY Exercise of conversion of derivative security	-	238 Added 5.07%	4,460 Common Stock
Feb 18 2025	SELL Open market or private sale	$3,201 $0.81 p/Share	3,953 Reduced 4.47%	84,443 Common Stock
Feb 15 2025	BUY Exercise of conversion of derivative security	-	10,626 Added 10.73%	88,396 Common Stock
Nov 18 2024	SELL Open market or private sale	$500 $0.54 p/Share	927 Reduced 1.18%	77,770 Common Stock
Nov 15 2024	BUY Exercise of conversion of derivative security	-	2,812 Added 3.45%	78,697 Common Stock
Oct 28 2024	SELL Open market or private sale	$2,748 $0.69 p/Share	3,984 Reduced 4.99%	75,885 Common Stock
Oct 27 2024	BUY Exercise of conversion of derivative security	-	12,622 Added 13.65%	79,869 Common Stock
Aug 16 2024	SELL Open market or private sale	$775 $0.84 p/Share	923 Reduced 1.35%	67,247 Common Stock
Aug 15 2024	BUY Exercise of conversion of derivative security	-	2,813 Added 3.96%	68,170 Common Stock
May 15 2024	SELL Open market or private sale	$837 $0.94 p/Share	891 Reduced 1.34%	65,357 Common Stock
May 15 2024	BUY Exercise of conversion of derivative security	-	2,812 Added 4.07%	66,248 Common Stock
Feb 16 2024	SELL Open market or private sale	$4,503 $1.08 p/Share	4,170 Reduced 6.17%	63,436 Common Stock
Feb 15 2024	BUY Exercise of conversion of derivative security	-	11,250 Added 14.27%	67,606 Common Stock
Oct 30 2023	SELL Open market or private sale	$5,246 $1.35 p/Share	3,886 Reduced 6.45%	56,356 Common Stock
Oct 27 2023	BUY Exercise of conversion of derivative security	-	12,623 Added 17.32%	60,242 Common Stock
Jul 05 2022	BUY Grant, award, or other acquisition	$150,000 $3.15 p/Share	47,619 Added 50.0%	47,619 Common Stock
Dec 01 2020	SELL Open market or private sale	$2,523,912 $27.49 p/Share	91,812 Reduced 100.0%	0 Common Stock
Dec 01 2020	BUY Exercise of conversion of derivative security	$442,158 $5.54 p/Share	79,812 Added 46.5%	91,812 Common Stock

MRH

Matthew R. Henn

Cambridge, MA

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