RIBBON COMMUNICATIONS INC

$RBBN
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Institutional coverage

144 13F filers hold $RBBN.

13F holders
144
Insider buys · 90d
0
Congress · 90d
0

Smart Money · top-200 alpha cohort

4 holders · Q1 2026

$RBBN is held by 4 managers from the Top-Performer cohort as of Q1 2026. Position weights range from 0.00% to 0.01%, with an average of 0.01% of portfolio. Largest holder: Connor, Clark & Lunn Investment Management Ltd. at 0.01%. A weekly Smart-Money commentary for this ticker has not been generated yet this batch — the table below shows the full cohort positioning.

01
Connor, Clark & Lunn Investment Management Ltd.
0.01% held
α +12.3pts
02
WINTON GROUP Ltd
0.00% held
α +27.0pts
03
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
0.00% held
α +27.5pts
04
Citigroup Inc.
0.00% held
α +26.3pts

Smart Money shows holdings from our Top-Performer cohort — the 200 highest-alpha manager_13f funds in our universe. Position weight (current quarter) and QoQ delta versus prior quarter. α is the manager's annual alpha vs benchmark.

Institutional holders

Top 10 of 144 · Source: 13F-HR
01
Hillman Co.
0.65% of portfolio
15,746,596 sh
02
Gates Foundation Trust
—
7,519,146 sh
03
Investors Asset Management of Georgia Inc.
0.10% of portfolio
4,879,741 sh
04
State Street
—
2,099,793 sh
05
Heritage Wealth Advisors
0.01% of portfolio
2,089,722 sh
06
Axa S.a.
—
1,910,027 sh
07
Commerce Bank
—
1,538,472 sh
08
Campbell Newman Asset Management Inc.
—
1,438,490 sh
09
Fmr LLC
0.67% of portfolio
1,407,178 sh
10
Marshall & Sullivan Inc.
0.01% of portfolio
1,370,620 sh
See all 144 13F holders · Pro →

Insider activity · last 90 days

9 transactions · 4 filers
13 Feb 2026
McClelland Bruce William —
▲ BOUGHT
12,500
$1.98
P
11 Feb 2026
McClelland Bruce William —
▲ BOUGHT
12,500
$1.99
P
10 Feb 2026
McClelland Bruce William —
▲ BOUGHT
12,000
$2.06
P
08 Sep 2025
Redington Dan —
▼ SOLD
14,176
$4.02
S
05 Sep 2025
Redington Dan —
▼ SOLD
155,434
$4.03
S
04 Sep 2025
Redington Dan —
▼ SOLD
20,000
$4.16
S
05 Sep 2025
Infante Beatriz V —
▼ SOLD
8,690
$3.98
S
09 Apr 2025
Jpmorgan Chase & Co. —
▼ SOLD
14
—
S
09 Apr 2025
Jpmorgan Chase & Co. —
▲ BOUGHT
14
$3.67
P

Transaction codes: P open-market purchase · S sale · M option exercise · A grant · F tax-withhold sale. Insider names link to each individual's expert page.

Congress trades · last 90 days

No Congress trades

No STOCK Act filings reference $RBBN in the recent window.

Source data: SEC EDGAR · 13F-HR · Form 4 · U.S. House Clerk PTR (disclosures-clerk.house.gov) · Senate eFD (senate.gov) · Last refreshed 07:26 UTC.