Mohan Bala Mersana Therapeutics, Inc. (MRSN) insider trading activity

Mohan Bala is SVP, Chief Development Officer of Mersana Therapeutics, Inc.. Currently has a direct ownership of 2,922 shares of MRSN, which is worth approximately $80,150. The most recent transaction as insider was on Oct 27, 2025, when has been sold 77 shares (Common Stock) at a price of $9.9 per share, resulting in proceeds of $762. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 2.92K

95.76% 3M change

94.66% 12M change

Total Value Held $80,150

Mohan Bala Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Oct 27 2025	SELL Open market or private sale	$762 $9.9 p/Share	77 Reduced 2.57%	2,922 Common Stock
Oct 25 2025	BUY Exercise of conversion of derivative security	-	250 Added 7.69%	2,999 Common Stock
Jan 16 2025	SELL Open market or private sale	$3,444 $0.58 p/Share	5,939 Reduced 7.94%	68,872 Common Stock
Jan 15 2025	BUY Exercise of conversion of derivative security	-	14,583 Added 16.31%	74,811 Common Stock
Jan 14 2025	SELL Open market or private sale	$2,146 $0.66 p/Share	3,253 Reduced 5.12%	60,228 Common Stock
Jan 13 2025	BUY Exercise of conversion of derivative security	-	8,750 Added 12.11%	63,481 Common Stock
Oct 28 2024	SELL Open market or private sale	$3,579 $1.9 p/Share	1,884 Reduced 3.33%	54,731 Common Stock

Oct 25 2024	BUY Exercise of conversion of derivative security	-	6,250 Added 9.94%	56,615 Common Stock
Oct 03 2024	SELL Open market or private sale	$10,972 $1.96 p/Share	5,598 Reduced 10.0%	50,365 Common Stock
Oct 02 2024	SELL Open market or private sale	$16,178 $2.0 p/Share	8,089 Reduced 12.63%	55,963 Common Stock
Oct 01 2024	BUY Exercise of conversion of derivative security	-	50,000 Added 43.84%	64,052 Common Stock
Jan 16 2024	SELL Open market or private sale	$9,298 $2.71 p/Share	3,431 Reduced 19.62%	14,052 Common Stock
Jan 13 2024	BUY Exercise of conversion of derivative security	-	8,750 Added 33.35%	17,483 Common Stock
Oct 26 2023	SELL Open market or private sale	$2,160 $1.13 p/Share	1,912 Reduced 17.96%	8,733 Common Stock
Oct 25 2023	BUY Exercise of conversion of derivative security	-	6,250 Added 36.99%	10,645 Common Stock

Mohan Bala

SVP, Chief Development Officer

Cambridge, MA

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