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RBBN Institutional Ownership & 13F Holders | SmartMoneyDB

RBBNRIBBON COMMUNICATIONS INC

COM · CUSIP 762544104

Smart Money Ownership

Of the 8 tracked institutions holding RBBN, 3 have a 3-year clone track record — 3 of them beat the S&P. Average holder's clone alpha: +4.5pt. It's a gauge of who owns the name, not just how many.

PRICE T ROWE ASSOCIATES INC /MD/

$149.0K

+2.7pt

Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →

RBBN (RIBBON COMMUNICATIONS INC) Institutional Ownership Summary

Among the 8 tracked institutional investors we monitor, RBBN (RIBBON COMMUNICATIONS INC) is held with a combined value of $45.95M across 18,865,742 shares. The largest holder is VANGUARD GROUP INC with a position worth $22.56M. 4 funds increased their holdings. 3 funds reduced their position.

Total Institutional Value

$45.95M

Total Shares Held

18,865,742

Institutional Holders

This Quarter's Biggest Movers

Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.

Biggest Buyers

AQR CAPITAL MANAGEMENT LLC+156% shares~$1.6M CITADEL ADVISORS LLC+967% shares~$1.1M MILLENNIUM MANAGEMENT LLC+805% shares~$926.5K VANGUARD GROUP INC+2% shares~$398.9K

Biggest Sellers

13F Institutional Holders

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AQR CAPITAL MANAGEMENT LLC

MILLENNIUM MANAGEMENT LLC

0.00% of book+804.7%

$1.04M

PRICE T ROWE ASSOCIATES INC /MD/

#	Fund	Value↓	Shares	Portfolio %	Change
1	VANGUARD GROUP INC	$22.56M	7,833,009	0.00%	+1.8%
2	BlackRock, Inc.	$14.25M	6,724,007	0.00%	-12.3%
3	STATE STREET CORP	$4.05M	1,910,027	0.00%	-9.0%
4	AQR CAPITAL MANAGEMENT LLC	$2.67M	1,257,347	0.00%	+155.8%
5	CITADEL ADVISORS LLC	$1.22M	574,989	0.00%	+966.7%
6	MILLENNIUM MANAGEMENT LLC	$1.04M	491,320	0.00%	+804.7%
7	PRICE T ROWE ASSOCIATES INC /MD/	$149.00K	69,822	0.00%	-
8	FMR LLC	$11.07K	5,221	0.00%	-60.7%

Frequently Asked Questions

Which institutional investors own the most RBBN stock?

As of the latest SEC 13F filings, VANGUARD GROUP INC is the largest institutional holder of RBBN with a position worth $22.56M, representing 0.00% of their portfolio. In total, 8 institutional investors hold RBBN with a combined value of $45.95M.

What percentage of RBBN is owned by institutional investors?

Institutional investors hold $45.95M worth of RBBN stock across 8 positions. The largest institutional holder is VANGUARD GROUP INC with $22.56M in holdings.

What is a 13F filing and why does it matter for RBBN?

A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For RBBN, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.

Track RBBN institutional moves

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