Eric S Marmurek Ribbon Communications Inc. (RBBN) insider trading activity

Eric S Marmurek is SVP, CAO & Deputy CFO of Ribbon Communications Inc.. Currently has a direct ownership of 381,575 shares of RBBN, which is worth approximately $1.52 Million. The most recent transaction as insider was on May 16, 2025, when has been sold 12,452 shares (Common Stock) at a price of $3.62 per share, resulting in proceeds of $45,076. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 382K

18.88% 3M change

31.71% 12M change

Total Value Held $1.52 Million

Eric S Marmurek Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
May 16 2025	SELL Payment of exercise price or tax liability	$45,076 $3.62 p/Share	12,452 Reduced 3.16%	381,575 Common Stock
May 16 2025	BUY Exercise of conversion of derivative security	-	31,645 Added 7.43%	394,027 Common Stock
Apr 18 2025	SELL Payment of exercise price or tax liability	$18,809 $3.58 p/Share	5,254 Reduced 1.43%	362,382 Common Stock
Apr 18 2025	BUY Exercise of conversion of derivative security	-	13,354 Added 3.51%	367,636 Common Stock
Apr 17 2025	SELL Payment of exercise price or tax liability	$32,271 $3.53 p/Share	9,142 Reduced 2.52%	354,282 Common Stock
Apr 17 2025	BUY Exercise of conversion of derivative security	-	23,234 Added 6.01%	363,424 Common Stock
Mar 15 2025	SELL Payment of exercise price or tax liability	$28,917 $3.95 p/Share	7,321 Reduced 2.23%	320,968 Common Stock
Mar 15 2025	BUY Exercise of conversion of derivative security	-	48,553 Added 12.09%	353,122 Common Stock
Oct 18 2024	SELL Payment of exercise price or tax liability	$18,707 $3.56 p/Share	5,255 Reduced 1.66%	311,890 Common Stock
Oct 18 2024	BUY Exercise of conversion of derivative security	-	13,355 Added 4.04%	317,145 Common Stock
Oct 17 2024	SELL Payment of exercise price or tax liability	$30,899 $3.38 p/Share	9,142 Reduced 2.92%	303,790 Common Stock
Oct 17 2024	BUY Exercise of conversion of derivative security	-	23,234 Added 6.91%	312,932 Common Stock
Apr 18 2024	SELL Payment of exercise price or tax liability	$12,580 $2.57 p/Share	4,895 Reduced 1.66%	289,698 Common Stock
Apr 18 2024	BUY Exercise of conversion of derivative security	-	13,354 Added 4.34%	294,593 Common Stock
Apr 17 2024	SELL Payment of exercise price or tax liability	$44,550 $2.61 p/Share	17,069 Reduced 5.72%	281,239 Common Stock
Apr 17 2024	BUY Exercise of conversion of derivative security	-	46,469 Added 13.48%	298,308 Common Stock
Mar 15 2024	SELL Payment of exercise price or tax liability	$51,081 $3.95 p/Share	12,932 Reduced 3.66%	340,190 Common Stock
Mar 15 2024	SELL Payment of exercise price or tax liability	$4,397 $2.83 p/Share	1,554 Reduced 0.61%	251,839 Common Stock
Mar 15 2024	BUY Exercise of conversion of derivative security	-	5,697 Added 2.2%	253,393 Common Stock
Jan 18 2024	SELL Payment of exercise price or tax liability	$12,629 $2.84 p/Share	4,447 Reduced 1.76%	247,696 Common Stock
Jan 18 2024	BUY Exercise of conversion of derivative security	-	15,000 Added 5.61%	252,143 Common Stock
Oct 18 2023	SELL Payment of exercise price or tax liability	$6,989 $2.15 p/Share	3,251 Reduced 1.35%	237,143 Common Stock
Oct 18 2023	BUY Exercise of conversion of derivative security	-	13,355 Added 5.26%	240,394 Common Stock
Sep 15 2023	SELL Payment of exercise price or tax liability	$2,835 $2.83 p/Share	1,002 Reduced 0.44%	227,039 Common Stock
Sep 15 2023	BUY Exercise of conversion of derivative security	-	4,117 Added 1.77%	228,041 Common Stock

ESM

Eric S Marmurek

SVP, CAO & Deputy CFO

Plano, TX

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