Ribbon Communications RBBN Insider Ownership

NASDAQ RBBN
$1.79 +0.06 (+3.47%)
At close: Sep 29, 2026 · 4:00 PM EDT

Insider Holdings by Owner

87.41Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
49.32%
▲+0.015% pp QoQ
Shares Held by Insiders
87.41Mn
filed for Sep 2026
▲+0.03% QoQ
Shares Outstanding
177.25Mn
177,251,000 shares
Direct Holdings
35.38Mn
Indirect: 52.04Mn
Net Shares Traded (QoQ)
+26.18K
net buying in Sep 2026
Insiders Holding Shares
19
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter —
Net over range —
Buying quarters —

Insider Ownership Summary

Quarter ending 30 Sep, 2026

As of September 29, 2026, the three largest insider holders of RBBN are Chase Co Jpmorgan (TenPercentOwner, 52.04Mn shares), Investments Ltd. Swarth (TenPercentOwner, 27.44Mn shares), Bruce William Mcclelland (Chief Executive Officer, 2.91Mn shares).

Form 4 Holdings

Insiders Holding RBBN

Insiders 19
Shares held 87.41Mn
Of outstanding 49.32%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Chase Co Jpmorgan TenPercentOwner 0 52,036,572 52,036,572 59.5% 11 Apr, 2025
2 Investments Ltd. Swarth TenPercentOwner 27,440,739 0 27,440,739 31.4% 03 Apr, 2023
3 Bruce William Mcclelland Chief Executive Officer 2,909,454 0 2,909,454 3.3% 19 May, 2026
4 Bruns H Grayson Director 840,270 0 840,270 1.0% 15 Jul, 2026
5 Sam Bucci Evp, Chief Operating Officer 599,271 0 599,271 0.7% 19 May, 2026
6 Eric S Marmurek Evp, Chief Financial Officer 543,706 0 543,706 0.6% 19 May, 2026
7 Patrick W Macken Evp, Chief Legal Officer 482,146 0 482,146 0.6% 19 May, 2026
8 Miguel A Lopez Evp, Cfo 456,797 0 456,797 0.5% 21 Oct, 2024
9 Beatriz V Infante Director 385,724 0 385,724 0.4% 17 Jun, 2026
10 Steven M Bruny Evp Sales, Americas Region 297,359 0 297,359 0.3% 19 Sep, 2022
11 Anthony Scarfo Evp Gm, Cloud Edge Bu 252,431 0 252,431 0.3% 19 Sep, 2022
12 R Stewart Jr Ewing Director 239,891 0 239,891 0.3% 17 Jun, 2026
13 Shaul Shani Director 237,718 0 237,718 0.3% 15 Jul, 2026
14 Tanya Tamone Director 223,300 0 223,300 0.3% 17 Jun, 2026
15 Scott Mair Director 208,138 0 208,138 0.2% 17 Jun, 2026
16 John Raymond Townsend Evp, Chief Financial Officer 93,309 0 93,309 0.1% 17 Apr, 2026
17 Krish A Prabhu Director 58,477 0 58,477 0.1% 27 May, 2022
18 Beer Mariano De Director 56,331 0 56,331 0.1% 16 Jun, 2023
19 Stephen J. Mccaffery Evp, Sales Emea And Apac 50,025 0 50,025 0.1% 19 Sep, 2022

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

1,203 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
15 Jul, 2026 Bruns H Grayson Director Acquired A 14,423 — — 840,270 Direct
15 Jul, 2026 Shaul Shani Director Acquired A 11,752 — — 237,718 Direct
15 Jun, 2026 Eric S Marmurek Evp, Chief Financial Officer Acquired A 150,000 $0.00 $0 150,000 Direct
16 Jun, 2026 Shaul Shani Director Acquired M 42,500 — — 225,966 Direct
15 Jun, 2026 Patrick W Macken Evp, Chief Legal Officer Acquired A 162,500 $0.00 $0 162,500 Direct
15 Jun, 2026 Stephen J. Mccaffery Evp, Global Sales Acquired A 200,000 $0.00 $0 200,000 Direct
16 Jun, 2026 Bruns H Grayson Director Acquired M 42,500 — — 825,847 Direct
16 Jun, 2026 Tanya Tamone Director Acquired M 42,500 — — 223,300 Direct
16 Jun, 2026 Scott Mair Director Acquired M 67,500 — — 208,138 Direct
16 Jun, 2026 R Stewart Jr Ewing Director Acquired M 42,500 — — 239,891 Direct
16 Jun, 2026 Beatriz V Infante Director Acquired M 42,500 — — 385,724 Direct
15 Jun, 2026 Louis Silver Director Acquired A 63,197 $0.00 $0 63,197 Direct
15 Jun, 2026 Sam Bucci Evp, Chief Operating Officer Acquired A 250,000 $0.00 $0 250,000 Direct
15 Jun, 2026 Eric S Marmurek Evp, Chief Financial Officer Acquired A 90,000 $0.00 $0 90,000 Direct
15 Jun, 2026 Bruns H Grayson Director Acquired A 63,197 $0.00 $0 63,197 Direct
15 Jun, 2026 Shaul Shani Director Acquired A 63,197 $0.00 $0 63,197 Direct
15 Jun, 2026 Beatriz V Infante Director Acquired A 63,197 $0.00 $0 63,197 Direct
15 Jun, 2026 Tanya Tamone Director Acquired A 63,197 $0.00 $0 63,197 Direct
15 Jun, 2026 Stephen J. Mccaffery Evp, Global Sales Acquired A 120,000 $0.00 $0 120,000 Direct
15 Jun, 2026 Sam Bucci Evp, Chief Operating Officer Acquired A 150,000 $0.00 $0 150,000 Direct