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Which hedge funds own RBBN? RIBBON COMMUNICATIONS INC, Q2 2026 13F holders

17 tracked hedge funds disclosed a position in RBBN (RIBBON COMMUNICATIONS INC) in their Q2 2026 13F filings, worth $19.5m in total. The largest holder by portfolio weight is Worth Venture Partners, LLC at 0.2% of its book. 7 opened a new position this quarter: Worth Venture Partners, LLC, Hillsdale Investment Management Inc., Squarepoint Ops LLC, Brevan Howard Capital Management LP. 4 exited: NINE MASTS CAPITAL Ltd, Engineers Gate Manager LP, Y-Intercept (Hong Kong) Ltd.

17
Holders
Tracked managers whose filing for the quarter reports a long equity position in the security.
7
New this quarter
Holders whose previous filing (at most two quarters earlier) did not report the security.
4
Exited this quarter
Tracked managers whose previous filing reported the security and whose filing for the quarter does not.
$1.4m
Inflow, new holders
Combined value of the positions the new holders reported for the quarter.
$400k
Outflow, exits
Combined value the exiting managers reported for the security in their previous filing.
$19.5m
Combined value
Sum of the holders' reported positions in the security.
1.4%
Share of managers holding
Holders as a share of tracked managers filing for that quarter. Comparable across the 2024 coverage expansion, where the raw holder count is not.

Holders, Q2 2026

17 rows
Worth Venture Partners, LLC Hedge fund0.2%$81.9k35,000–new
EntryPoint Capital, LLC Hedge fund0.10%$405k172,880+23%added
Gsa Capital Partners LLP Hedge fund0.03%$407k174,044−41%reduced
Prelude Capital Management, LLC Hedge fund0.01%$122k52,138+6.3%added
Hillsdale Investment Management Inc. Hedge fund0.0%$213k91,013–new
ExodusPoint Capital Management, LP Hedge fund0.0%$404k172,615−12%reduced
D. E. Shaw & Co., Inc. Hedge fund0.0%$4.2m1.79m+16%added
Citadel Advisors LLC Hedge fund0.0%$2.9m1.24m+116%added
Marshall Wace, LLP Hedge fund0.0%$1.9m814,132+5.8%added
Arrowstreet Capital, Limited Partnership Hedge fund0.0%$2.8m1.22m−0.1%held
AQR Capital Management LLC Hedge fund0.0%$3.3m1.41m+12%added
Millennium Management LLC Hedge fund0.0%$1.6m698,458+42%added
Squarepoint Ops LLC Hedge fund0.0%$448k191,402–new
Brevan Howard Capital Management LP Hedge fund0.0%$61.2k26,154–new
Qube Research & Technologies Ltd Hedge fund0.0%$323k137,899–new
Two Sigma Investments, LP Hedge fund0.0%$239k102,187–new
Balyasny Asset Management L.P. Hedge fund0.0%$38.1k16,288–new