Sam Bucci

CIK: 0001824854

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)15 (39.5%)

Derivative conversions

Awards (A)8 (21.1%)

Compensation grants

Other (G, F, J, C, D, …)15 (39.5%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

RBBN

Ribbon Communications Inc.

Officer

Discretionary Trading P&L

Holdings

Transaction History (38 total)

RBBN
Ribbon Communications Inc.
Jun 15, 2026
Award(A)
PSUs
Direct
100K shares-
RBBN
Ribbon Communications Inc.
Jun 15, 2026
Award(A)
Performance-Based RSUs (PSUs)
Direct
150K shares-
RBBN
Ribbon Communications Inc.
Jun 15, 2026
Award(A)
Restructed Stock Unites (RSUs)
Direct
250K shares-
RBBN
Ribbon Communications Inc.
May 15, 2026
Exercise(M)
Direct
83.3K shares-
RBBN
Ribbon Communications Inc.
May 15, 2026
Tax Payment(F)
Direct
28.2K shares at avg. $2.63$74K
RBBN
Ribbon Communications Inc.
May 15, 2026
Exercise(M)
Direct
38.6K shares-
RBBN
Ribbon Communications Inc.
May 15, 2026
Exercise(M)
Direct
52.7K shares-
RBBN
Ribbon Communications Inc.
May 15, 2026
Tax Payment(F)
Direct
44.6K shares at avg. $2.63$117K
RBBN
Ribbon Communications Inc.
May 15, 2026
Tax Payment(F)
Direct
20.7K shares at avg. $2.63$54K
RBBN
Ribbon Communications Inc.
Apr 17, 2026
Tax Payment(F)
Direct
13.8K shares at avg. $2.71$37K
RBBN
Ribbon Communications Inc.
Apr 17, 2026
Exercise(M)
Direct
42.8K shares-
RBBN
Ribbon Communications Inc.
Apr 17, 2026
Tax Payment(F)
Direct
22.9K shares at avg. $2.71$62K
RBBN
Ribbon Communications Inc.
Apr 17, 2026
Exercise(M)
Direct
80.5K shares-
RBBN
Ribbon Communications Inc.
Apr 17, 2026
Tax Payment(F)
Direct
43.1K shares at avg. $2.71$117K
RBBN
Ribbon Communications Inc.
Apr 17, 2026
Exercise(M)
Direct
25.8K shares-
RBBN
Ribbon Communications Inc.
Oct 17, 2025
Exercise(M)
Direct
25.8K shares-
RBBN
Ribbon Communications Inc.
Oct 17, 2025
Tax Payment(F)
Direct
13.8K shares at avg. $3.81$53K
RBBN
Ribbon Communications Inc.
May 16, 2025
Exercise(M)
Direct
52.7K shares-
RBBN
Ribbon Communications Inc.
May 16, 2025
Tax Payment(F)
Direct
28.2K shares at avg. $3.62$102K
RBBN
Ribbon Communications Inc.
May 15, 2025
Award(A)
PSUs
Direct
100K shares-
RBBN
Ribbon Communications Inc.
May 15, 2025
Award(A)
PSUs
Direct
60.7K shares-
RBBN
Ribbon Communications Inc.
May 15, 2025
Award(A)
Performance-Based RSUs (PSUs)
Direct
150K shares-
RBBN
Ribbon Communications Inc.
May 15, 2025
Award(A)
RSUs
Direct
105.5K shares-
RBBN
Ribbon Communications Inc.
May 15, 2025
Award(A)
Restricted Stock Units (RSUs)
Direct
250K shares-
RBBN
Ribbon Communications Inc.
Apr 18, 2025
Tax Payment(F)
Direct
14.3K shares at avg. $3.58$51K

		Type	Shares	Price		Ownership
Jun 15, 2026	RBBN Ribbon Communications Inc.	Award(A) PSUs	100,000	-	-	Direct
Jun 15, 2026	RBBN Ribbon Communications Inc.	Award(A) Performance-Based RSUs (PSUs)	150,000	-	-	Direct
Jun 15, 2026	RBBN Ribbon Communications Inc.	Award(A) Restructed Stock Unites (RSUs)	250,000	-	-	Direct
May 15, 2026	RBBN Ribbon Communications Inc.	Exercise(M)	83,335	-	$0	Direct
May 15, 2026	RBBN Ribbon Communications Inc.	Tax Payment(F)	28,233	$2.63	$74,253	Direct
May 15, 2026	RBBN Ribbon Communications Inc.	Exercise(M)	38,578	-	$0	Direct
May 15, 2026	RBBN Ribbon Communications Inc.	Exercise(M)	52,743	-	$0	Direct
May 15, 2026	RBBN Ribbon Communications Inc.	Tax Payment(F)	44,609	$2.63	$117,322	Direct
May 15, 2026	RBBN Ribbon Communications Inc.	Tax Payment(F)	20,650	$2.63	$54,310	Direct
Apr 17, 2026	RBBN Ribbon Communications Inc.	Tax Payment(F)	13,818	$2.71	$37,447	Direct
Apr 17, 2026	RBBN Ribbon Communications Inc.	Exercise(M)	42,753	-	$0	Direct
Apr 17, 2026	RBBN Ribbon Communications Inc.	Tax Payment(F)	22,884	$2.71	$62,016	Direct
Apr 17, 2026	RBBN Ribbon Communications Inc.	Exercise(M)	80,546	-	$0	Direct
Apr 17, 2026	RBBN Ribbon Communications Inc.	Tax Payment(F)	43,116	$2.71	$116,844	Direct
Apr 17, 2026	RBBN Ribbon Communications Inc.	Exercise(M)	25,815	-	$0	Direct
Oct 17, 2025	RBBN Ribbon Communications Inc.	Exercise(M)	25,816	-	-	Direct
Oct 17, 2025	RBBN Ribbon Communications Inc.	Tax Payment(F)	13,819	$3.81	$52,650	Direct
May 16, 2025	RBBN Ribbon Communications Inc.	Exercise(M)	52,742	-	-	Direct
May 16, 2025	RBBN Ribbon Communications Inc.	Tax Payment(F)	28,232	$3.62	$102,200	Direct
May 15, 2025	RBBN Ribbon Communications Inc.	Award(A) PSUs	100,000	-	-	Direct
May 15, 2025	RBBN Ribbon Communications Inc.	Award(A) PSUs	60,654	-	-	Direct
May 15, 2025	RBBN Ribbon Communications Inc.	Award(A) Performance-Based RSUs (PSUs)	150,000	-	-	Direct
May 15, 2025	RBBN Ribbon Communications Inc.	Award(A) RSUs	105,485	-	-	Direct
May 15, 2025	RBBN Ribbon Communications Inc.	Award(A) Restricted Stock Units (RSUs)	250,000	-	-	Direct
Apr 18, 2025	RBBN Ribbon Communications Inc.	Tax Payment(F)	14,297	$3.58	$51,183	Direct

1-25 of 38 transactions

About Bucci Sam

Bucci Sam (SEC CIK 0001824854) files insider reports with the SEC as EVP, Chief Operating Officer of Ribbon Communications Inc. (RBBN).

Signal8 holds 8 ownership filings by Bucci Sam, all Form 4s, filed between Oct 21, 2024 and Jun 17, 2026. Those filings report 38 transactions, from Apr 17, 2024 to Jun 15, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Bucci Sam's filings is in PLANO, TX.

Recent filings by Bucci Sam

Jun 15, 2026: Grants or awards of RBBN derivative securities (3 lines, Form 4, code A).
May 15, 2026: Option exercise of RBBN shares (Form 4, code M).
May 15, 2026: Tax withholding of RBBN shares (Form 4, code F).
May 15, 2026: Option exercises of RBBN shares (2 lines, Form 4, code M).
May 15, 2026: Tax withholdings of RBBN shares (2 lines, Form 4, code F).

Other insiders filing for Ribbon Communications Inc. (RBBN)

McCaffery Stephen J., EVP, Global Sales
McClelland Bruce William, President & CEO
Marmurek Eric S, EVP, Chief Financial Officer
GRAYSON BRUNS H, Director
SHANI SHAUL, Director
Macken Patrick W, EVP, Chief Legal Officer

How to read Form 4 transaction codes