RBBN
insider transactionsRibbon Communications Inc. — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 365d
+35.0K
37.0K buy · 2.0K sell
Net value · 365d
-$198.7K
$74.3K in · $273.0K out
Sentiment · 365d
Net buying
21% buying · 79% selling
Open-market trades · 365d
4
37.0K buy · 2.0K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
-
Exercise·M
Director
$0
42.5K sh
Own New
-
Exercise·M
Director
—
42.5K sh
Own +24%
-
Exercise·M
Director
$0
42.5K sh
Own New
-
Exercise·M
Director
—
42.5K sh
Own +23%
-
Exercise·M
Director
$0
67.5K sh
Own New
-
Exercise·M
Director
—
67.5K sh
Own +48%
-
Exercise·M
Director
$0
42.5K sh
Own New
-
Exercise·M
Director
—
42.5K sh
Own +12%
-
Exercise·M
Director
$0
42.5K sh
Own New
-
Exercise·M
Director
—
42.5K sh
Own +5%
-
Exercise·M
Director
$0
42.5K sh
Own New
-
Exercise·M
Director
—
42.5K sh
Own +22%
-
Grant·A
Director
$0
63.2K sh
Own New
-
Grant·A
Director
$0
63.2K sh
Own New
-
Grant·A
Director
$0
63.2K sh
Own New
-
Grant·A
EVP, Global Sales
$0
80.0K sh
Own New
-
Grant·A
EVP, Global Sales
$0
120.0K sh
Own New
-
Grant·A
EVP, Global Sales
$0
200.0K sh
Own New
-
Grant·A
Eric S Marmurek KEY
EVP, Chief Financial Officer
$0
60.0K sh
Own New
-
Grant·A
Eric S Marmurek KEY
EVP, Chief Financial Officer
$0
90.0K sh
Own New
-
Grant·A
Eric S Marmurek KEY
EVP, Chief Financial Officer
$0
150.0K sh
Own New
-
Grant·A
Director
$0
63.2K sh
Own New
-
Grant·A
EVP, Chief Legal Officer
$0
65.0K sh
Own New
-
Grant·A
EVP, Chief Legal Officer
$0
97.5K sh
Own New
-
Grant·A
EVP, Chief Legal Officer
$0
162.5K sh
Own New
-
Grant·A
Director
$0
63.2K sh
Own New
-
Grant·A
Director
$0
63.2K sh
Own New
-
Grant·A
Director
$0
63.2K sh
Own New
-
Grant·A
EVP, Chief Operating Officer
$0
100.0K sh
Own New
-
Grant·A
EVP, Chief Operating Officer
$0
150.0K sh
Own New
-
Grant·A
EVP, Chief Operating Officer
$0
250.0K sh
Own New
-
Exercise·M
Chief Executive Officer
$0
1.6M sh
Own New
-
Exercise·M
Chief Executive Officer
$0
125.0K sh
Own +100%
-
Exercise·M
Chief Executive Officer
$0
237.3K sh
Own New
-
Exercise·M
Chief Executive Officer
$0
173.6K sh
Own New
-
Other·F
Chief Executive Officer
$1.6M
614.8K sh · $2.63
Own -17%
-
Exercise·M
Chief Executive Officer
—
1.6M sh
Own +80%
-
Other·F
Chief Executive Officer
$129.4K
49.2K sh · $2.63
Own -2%
-
Exercise·M
Chief Executive Officer
—
125.0K sh
Own +7%
-
Other·F
Chief Executive Officer
$245.6K
93.4K sh · $2.63
Own -5%
-
Exercise·M
Chief Executive Officer
—
237.3K sh
Own +14%
-
Other·F
Chief Executive Officer
$179.7K
68.3K sh · $2.63
Own -4%
-
Exercise·M
Chief Executive Officer
—
173.6K sh
Own +11%
-
Exercise·M
Eric S Marmurek KEY
EVP, Chief Financial Officer
$0
31.6K sh
Own New
-
Exercise·M
Eric S Marmurek KEY
EVP, Chief Financial Officer
$0
26.0K sh
Own +100%
-
Exercise·M
Eric S Marmurek KEY
EVP, Chief Financial Officer
$0
23.1K sh
Own New
-
Other·F
Eric S Marmurek KEY
EVP, Chief Financial Officer
$26.9K
10.2K sh · $2.63
Own -2%
-
Exercise·M
Eric S Marmurek KEY
EVP, Chief Financial Officer
—
26.0K sh
Own +5%
-
Other·F
Eric S Marmurek KEY
EVP, Chief Financial Officer
$32.7K
12.5K sh · $2.63
Own -2%
-
Exercise·M
Eric S Marmurek KEY
EVP, Chief Financial Officer
—
31.6K sh
Own +6%
-
Other·F
Eric S Marmurek KEY
EVP, Chief Financial Officer
$24.0K
9.1K sh · $2.63
Own -2%
-
Exercise·M
Eric S Marmurek KEY
EVP, Chief Financial Officer
—
23.1K sh
Own +5%
-
Exercise·M
EVP, Chief Legal Officer
$0
54.2K sh
Own +100%
-
Exercise·M
EVP, Chief Legal Officer
$0
44.8K sh
Own New
-
Exercise·M
EVP, Chief Legal Officer
$0
32.8K sh
Own New
-
Other·F
EVP, Chief Legal Officer
$63.8K
24.3K sh · $2.63
Own -5%
-
Exercise·M
EVP, Chief Legal Officer
—
54.2K sh
Own +12%
-
Other·F
EVP, Chief Legal Officer
$53.3K
20.3K sh · $2.63
Own -4%
-
Exercise·M
EVP, Chief Legal Officer
—
44.8K sh
Own +10%
-
Other·F
EVP, Chief Legal Officer
$38.6K
14.7K sh · $2.63
Own -3%
-
Exercise·M
EVP, Chief Legal Officer
—
32.8K sh
Own +8%
-
Exercise·M
EVP, Chief Operating Officer
$0
83.3K sh
Own +100%
-
Exercise·M
EVP, Chief Operating Officer
$0
52.7K sh
Own New
-
Exercise·M
EVP, Chief Operating Officer
$0
38.6K sh
Own New
-
Other·F
EVP, Chief Operating Officer
$117.3K
44.6K sh · $2.63
Own -7%
-
Exercise·M
EVP, Chief Operating Officer
—
83.3K sh
Own +15%
-
Other·F
EVP, Chief Operating Officer
$74.3K
28.2K sh · $2.63
Own -5%
-
Exercise·M
EVP, Chief Operating Officer
—
52.7K sh
Own +10%
-
Other·F
EVP, Chief Operating Officer
$54.3K
20.6K sh · $2.63
Own -4%
-
Exercise·M
EVP, Chief Operating Officer
—
38.6K sh
Own +7%
-
Exercise·M
Chief Executive Officer
$0
107.4K sh
Own New
-
Exercise·M
Chief Executive Officer
$0
57.0K sh
Own New
-
Exercise·M
Chief Executive Officer
$0
34.4K sh
Own New
-
Other·F
Chief Executive Officer
$114.5K
42.3K sh · $2.71
Own -3%
-
Exercise·M
Chief Executive Officer
—
107.4K sh
Own +7%
-
Other·F
Chief Executive Officer
$60.8K
22.4K sh · $2.71
Own -1%
-
Exercise·M
Chief Executive Officer
—
57.0K sh
Own +4%
-
Other·F
Chief Executive Officer
$36.7K
13.5K sh · $2.71
Own -1%
-
Exercise·M
Chief Executive Officer
—
34.4K sh
Own +2%
-
Exercise·M
Eric S Marmurek KEY
EVP, Chief Financial Officer
$0
48.3K sh
Own New
-
Exercise·M
Eric S Marmurek KEY
EVP, Chief Financial Officer
$0
25.7K sh
Own New
-
Other·F
Eric S Marmurek KEY
EVP, Chief Financial Officer
$27.3K
10.1K sh · $2.71
Own -2%
-
Exercise·M
Eric S Marmurek KEY
EVP, Chief Financial Officer
—
25.7K sh
Own +5%
-
Other·F
Eric S Marmurek KEY
EVP, Chief Financial Officer
$51.8K
19.1K sh · $2.71
Own -4%
-
Exercise·M
Eric S Marmurek KEY
EVP, Chief Financial Officer
—
48.3K sh
Own +11%
-
Exercise·M
EVP, Chief Legal Officer
$0
64.4K sh
Own New
-
Exercise·M
EVP, Chief Legal Officer
$0
34.2K sh
Own New
-
Exercise·M
EVP, Chief Legal Officer
$0
20.7K sh
Own New
-
Other·F
EVP, Chief Legal Officer
$78.2K
28.9K sh · $2.71
Own -7%
-
Exercise·M
EVP, Chief Legal Officer
—
64.4K sh
Own +17%
-
Other·F
EVP, Chief Legal Officer
$41.5K
15.3K sh · $2.71
Own -4%
-
Exercise·M
EVP, Chief Legal Officer
—
34.2K sh
Own +10%
-
Other·F
EVP, Chief Legal Officer
$25.1K
9.3K sh · $2.71
Own -3%
-
Exercise·M
EVP, Chief Legal Officer
—
20.7K sh
Own +6%
-
Exercise·M
EVP, Chief Operating Officer
$0
80.5K sh
Own New
-
Exercise·M
EVP, Chief Operating Officer
$0
42.8K sh
Own New
-
Exercise·M
EVP, Chief Operating Officer
$0
25.8K sh
Own New
-
Other·F
EVP, Chief Operating Officer
$116.8K
43.1K sh · $2.71
Own -8%
-
Exercise·M
EVP, Chief Operating Officer
—
80.5K sh
Own +17%
-
Other·F
EVP, Chief Operating Officer
$62.0K
22.9K sh · $2.71
Own -5%
-
Exercise·M
EVP, Chief Operating Officer
—
42.8K sh
Own +9%
-
Other·F
EVP, Chief Operating Officer
$37.4K
13.8K sh · $2.71
Own -3%
-
Exercise·M
EVP, Chief Operating Officer
—
25.8K sh
Own +6%
-
Exercise·M
EVP, Chief Financial Officer
$0
25.6K sh
Own +50%
-
Other·F
EVP, Chief Financial Officer
$25.0K
10.1K sh · $2.48
Own -10%
-
Exercise·M
EVP, Chief Financial Officer
—
25.6K sh
Own +33%
-
Grant·A
Director
—
13.0K sh
Own +8%
-
Exercise·M
Eric S Marmurek KEY
SVP, Deputy CFO and CAO
$0
37.5K sh
Own New
-
Other·F
Eric S Marmurek KEY
SVP, Deputy CFO and CAO
$36.6K
14.8K sh · $2.48
Own -3%
-
Exercise·M
Eric S Marmurek KEY
SVP, Deputy CFO and CAO
—
37.5K sh
Own +9%
-
Grant·A
Director
—
15.9K sh
Own +2%
-
Grant·A
Director
$0
5.7K sh
Own New
-
Exercise·M
Director
$0
4.9K sh
Own New
-
Exercise·M
Director
$0
4.9K sh
Own +5%
-
Buy·P
President & CEO
$24.8K
12.5K sh · $1.98
Own +1%
-
Buy·P
President & CEO
$24.9K
12.5K sh · $1.99
Own +1%
-
Buy·P
President & CEO
$24.7K
12.0K sh · $2.06
Own +1%
-
Grant·A
Director
$0
1.1K sh
Own +10%
-
Grant·A
Director
—
9.5K sh
Own +6%
-
Grant·A
Director
—
11.7K sh
Own +2%
-
Sell·S
Director
$273.0K
2.0K sh · $136.87
Own -15%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 16, 2026 | Tanya Tamone | Exercise M | 42.5K | $0 |
| Jun 16, 2026 | Tanya Tamone | Exercise M | 42.5K | — |
| Jun 16, 2026 | Shaul Shani | Exercise M | 42.5K | $0 |
| Jun 16, 2026 | Shaul Shani | Exercise M | 42.5K | — |
| Jun 16, 2026 | Scott Mair | Exercise M | 67.5K | $0 |
| Jun 16, 2026 | Scott Mair | Exercise M | 67.5K | — |
| Jun 16, 2026 | Beatriz V Infante | Exercise M | 42.5K | $0 |
| Jun 16, 2026 | Beatriz V Infante | Exercise M | 42.5K | — |
| Jun 16, 2026 | Bruns H Grayson | Exercise M | 42.5K | $0 |
| Jun 16, 2026 | Bruns H Grayson | Exercise M | 42.5K | — |
| Jun 16, 2026 | Stewart R Ewing JR | Exercise M | 42.5K | $0 |
| Jun 16, 2026 | Stewart R Ewing JR | Exercise M | 42.5K | — |
| Jun 15, 2026 | Tanya Tamone | Grant A | 63.2K | $0 |
| Jun 15, 2026 | Louis Silver | Grant A | 63.2K | $0 |
| Jun 15, 2026 | Shaul Shani | Grant A | 63.2K | $0 |
| Jun 15, 2026 | Stephen J. Mccaffery | Grant A | 80.0K | $0 |
| Jun 15, 2026 | Stephen J. Mccaffery | Grant A | 120.0K | $0 |
| Jun 15, 2026 | Stephen J. Mccaffery | Grant A | 200.0K | $0 |
| Jun 15, 2026 | Eric S Marmurek KEY | Grant A | 60.0K | $0 |
| Jun 15, 2026 | Eric S Marmurek KEY | Grant A | 90.0K | $0 |
| Jun 15, 2026 | Eric S Marmurek KEY | Grant A | 150.0K | $0 |
| Jun 15, 2026 | Scott Mair | Grant A | 63.2K | $0 |
| Jun 15, 2026 | Patrick W Macken | Grant A | 65.0K | $0 |
| Jun 15, 2026 | Patrick W Macken | Grant A | 97.5K | $0 |
| Jun 15, 2026 | Patrick W Macken | Grant A | 162.5K | $0 |
| Jun 15, 2026 | Beatriz V Infante | Grant A | 63.2K | $0 |
| Jun 15, 2026 | Bruns H Grayson | Grant A | 63.2K | $0 |
| Jun 15, 2026 | Stewart R Ewing JR | Grant A | 63.2K | $0 |
| Jun 15, 2026 | Sam Bucci | Grant A | 100.0K | $0 |
| Jun 15, 2026 | Sam Bucci | Grant A | 150.0K | $0 |
| Jun 15, 2026 | Sam Bucci | Grant A | 250.0K | $0 |
| May 15, 2026 | Bruce William Mcclelland KEY | Exercise M | 1.6M | $0 |
| May 15, 2026 | Bruce William Mcclelland KEY | Exercise M | 125.0K | $0 |
| May 15, 2026 | Bruce William Mcclelland KEY | Exercise M | 237.3K | $0 |
| May 15, 2026 | Bruce William Mcclelland KEY | Exercise M | 173.6K | $0 |
| May 15, 2026 | Bruce William Mcclelland KEY | Other F | 614.8K | $1.6M |
| May 15, 2026 | Bruce William Mcclelland KEY | Exercise M | 1.6M | — |
| May 15, 2026 | Bruce William Mcclelland KEY | Other F | 49.2K | $129.4K |
| May 15, 2026 | Bruce William Mcclelland KEY | Exercise M | 125.0K | — |
| May 15, 2026 | Bruce William Mcclelland KEY | Other F | 93.4K | $245.6K |
| May 15, 2026 | Bruce William Mcclelland KEY | Exercise M | 237.3K | — |
| May 15, 2026 | Bruce William Mcclelland KEY | Other F | 68.3K | $179.7K |
| May 15, 2026 | Bruce William Mcclelland KEY | Exercise M | 173.6K | — |
| May 15, 2026 | Eric S Marmurek KEY | Exercise M | 31.6K | $0 |
| May 15, 2026 | Eric S Marmurek KEY | Exercise M | 26.0K | $0 |
| May 15, 2026 | Eric S Marmurek KEY | Exercise M | 23.1K | $0 |
| May 15, 2026 | Eric S Marmurek KEY | Other F | 10.2K | $26.9K |
| May 15, 2026 | Eric S Marmurek KEY | Exercise M | 26.0K | — |
| May 15, 2026 | Eric S Marmurek KEY | Other F | 12.5K | $32.7K |
| May 15, 2026 | Eric S Marmurek KEY | Exercise M | 31.6K | — |
| May 15, 2026 | Eric S Marmurek KEY | Other F | 9.1K | $24.0K |
| May 15, 2026 | Eric S Marmurek KEY | Exercise M | 23.1K | — |
| May 15, 2026 | Patrick W Macken | Exercise M | 54.2K | $0 |
| May 15, 2026 | Patrick W Macken | Exercise M | 44.8K | $0 |
| May 15, 2026 | Patrick W Macken | Exercise M | 32.8K | $0 |
| May 15, 2026 | Patrick W Macken | Other F | 24.3K | $63.8K |
| May 15, 2026 | Patrick W Macken | Exercise M | 54.2K | — |
| May 15, 2026 | Patrick W Macken | Other F | 20.3K | $53.3K |
| May 15, 2026 | Patrick W Macken | Exercise M | 44.8K | — |
| May 15, 2026 | Patrick W Macken | Other F | 14.7K | $38.6K |
| May 15, 2026 | Patrick W Macken | Exercise M | 32.8K | — |
| May 15, 2026 | Sam Bucci | Exercise M | 83.3K | $0 |
| May 15, 2026 | Sam Bucci | Exercise M | 52.7K | $0 |
| May 15, 2026 | Sam Bucci | Exercise M | 38.6K | $0 |
| May 15, 2026 | Sam Bucci | Other F | 44.6K | $117.3K |
| May 15, 2026 | Sam Bucci | Exercise M | 83.3K | — |
| May 15, 2026 | Sam Bucci | Other F | 28.2K | $74.3K |
| May 15, 2026 | Sam Bucci | Exercise M | 52.7K | — |
| May 15, 2026 | Sam Bucci | Other F | 20.6K | $54.3K |
| May 15, 2026 | Sam Bucci | Exercise M | 38.6K | — |
| Apr 17, 2026 | Bruce William Mcclelland KEY | Exercise M | 107.4K | $0 |
| Apr 17, 2026 | Bruce William Mcclelland KEY | Exercise M | 57.0K | $0 |
| Apr 17, 2026 | Bruce William Mcclelland KEY | Exercise M | 34.4K | $0 |
| Apr 17, 2026 | Bruce William Mcclelland KEY | Other F | 42.3K | $114.5K |
| Apr 17, 2026 | Bruce William Mcclelland KEY | Exercise M | 107.4K | — |
| Apr 17, 2026 | Bruce William Mcclelland KEY | Other F | 22.4K | $60.8K |
| Apr 17, 2026 | Bruce William Mcclelland KEY | Exercise M | 57.0K | — |
| Apr 17, 2026 | Bruce William Mcclelland KEY | Other F | 13.5K | $36.7K |
| Apr 17, 2026 | Bruce William Mcclelland KEY | Exercise M | 34.4K | — |
| Apr 17, 2026 | Eric S Marmurek KEY | Exercise M | 48.3K | $0 |
| Apr 17, 2026 | Eric S Marmurek KEY | Exercise M | 25.7K | $0 |
| Apr 17, 2026 | Eric S Marmurek KEY | Other F | 10.1K | $27.3K |
| Apr 17, 2026 | Eric S Marmurek KEY | Exercise M | 25.7K | — |
| Apr 17, 2026 | Eric S Marmurek KEY | Other F | 19.1K | $51.8K |
| Apr 17, 2026 | Eric S Marmurek KEY | Exercise M | 48.3K | — |
| Apr 17, 2026 | Patrick W Macken | Exercise M | 64.4K | $0 |
| Apr 17, 2026 | Patrick W Macken | Exercise M | 34.2K | $0 |
| Apr 17, 2026 | Patrick W Macken | Exercise M | 20.7K | $0 |
| Apr 17, 2026 | Patrick W Macken | Other F | 28.9K | $78.2K |
| Apr 17, 2026 | Patrick W Macken | Exercise M | 64.4K | — |
| Apr 17, 2026 | Patrick W Macken | Other F | 15.3K | $41.5K |
| Apr 17, 2026 | Patrick W Macken | Exercise M | 34.2K | — |
| Apr 17, 2026 | Patrick W Macken | Other F | 9.3K | $25.1K |
| Apr 17, 2026 | Patrick W Macken | Exercise M | 20.7K | — |
| Apr 17, 2026 | Sam Bucci | Exercise M | 80.5K | $0 |
| Apr 17, 2026 | Sam Bucci | Exercise M | 42.8K | $0 |
| Apr 17, 2026 | Sam Bucci | Exercise M | 25.8K | $0 |
| Apr 17, 2026 | Sam Bucci | Other F | 43.1K | $116.8K |
| Apr 17, 2026 | Sam Bucci | Exercise M | 80.5K | — |
| Apr 17, 2026 | Sam Bucci | Other F | 22.9K | $62.0K |
| Apr 17, 2026 | Sam Bucci | Exercise M | 42.8K | — |
| Apr 17, 2026 | Sam Bucci | Other F | 13.8K | $37.4K |
| Apr 17, 2026 | Sam Bucci | Exercise M | 25.8K | — |
| Apr 15, 2026 | John Raymond Townsend KEY | Exercise M | 25.6K | $0 |
| Apr 15, 2026 | John Raymond Townsend KEY | Other F | 10.1K | $25.0K |
| Apr 15, 2026 | John Raymond Townsend KEY | Exercise M | 25.6K | — |
| Apr 15, 2026 | Shaul Shani | Grant A | 13.0K | — |
| Apr 15, 2026 | Eric S Marmurek KEY | Exercise M | 37.5K | $0 |
| Apr 15, 2026 | Eric S Marmurek KEY | Other F | 14.8K | $36.6K |
| Apr 15, 2026 | Eric S Marmurek KEY | Exercise M | 37.5K | — |
| Apr 15, 2026 | Bruns H Grayson | Grant A | 15.9K | — |
| Mar 1, 2026 | Beatriz V Infante | Grant A | 5.7K | $0 |
| Mar 1, 2026 | Beatriz V Infante | Exercise M | 4.9K | $0 |
| Mar 1, 2026 | Beatriz V Infante | Exercise M | 4.9K | $0 |
| Feb 13, 2026 | Bruce William Mcclelland KEY | Buy P | 12.5K | $24.8K |
| Feb 11, 2026 | Bruce William Mcclelland KEY | Buy P | 12.5K | $24.9K |
| Feb 10, 2026 | Bruce William Mcclelland KEY | Buy P | 12.0K | $24.7K |
| Feb 5, 2026 | Beatriz V Infante | Grant A | 1.1K | $0 |
| Jan 15, 2026 | Shaul Shani | Grant A | 9.5K | — |
| Jan 15, 2026 | Bruns H Grayson | Grant A | 11.7K | — |
| Jan 12, 2026 | Beatriz V Infante | Sell S | 2.0K | $273.0K |
About RBBN insider trading
This page tracks insider transactions for Ribbon Communications Inc. (RBBN) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.