Dmitry Balyasny’s Ribbon Communications RBBN Stock Holding History

Dmitry Balyasny’s Portfolio RBBN Stock Details RBBN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$38.1K	Buy	+16,288	New	+$43K	﹤0.01%	2912
2025 Q3	–	Sell	-46,472	Closed	-$186K	–	3377
2025 Q2	$186K	Buy	+46,472	New	+$168K	﹤0.01%	2613
2023 Q2	–	Sell	-18,311	Closed	-$62.6K	–	2696
2023 Q1	$62.6K	Buy	+18,311	New	+$66.9K	﹤0.01%	2362
2022 Q3	–	Sell	-16,051	Closed	-$49K	–	3195
2022 Q2	$49K	Buy	+16,051	New	+$48.5K	﹤0.01%	2369
2018 Q3	–	Sell	-16,003	Closed	-$114K	–	1975
2018 Q2	$114K	Buy	16,003 +1,000	+7%	+$5.86K	﹤0.01%	1700
2018 Q1	$77K	Buy	+15,003	New	+$97.1K	﹤0.01%	1847
2017 Q1	–	Sell	-14,500	Closed	-$91K	–	1752
2016 Q4	$91K	Sell	14,500 -2,000	-12%	-$13.1K	﹤0.01%	1319
2016 Q3	$128K	Buy	16,500 +2,500	+18%	+$21.8K	﹤0.01%	909
2016 Q2	$122K	Buy	14,000 +1,920	+16%	+$16K	﹤0.01%	1084
2016 Q1	$91K	Sell	12,080 -38,180	-76%	-$255K	﹤0.01%	1207
2015 Q4	$358K	Buy	+50,260	New	+$337K	﹤0.01%	919

Other funds holding RBBN

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Neuberger Berman Group New York $150B AUM 40.08% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Royce & Associates New York $12.4B AUM 64.17% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

PCMI

Paradigm Capital Management Inc Albany, New York $3.67B AUM 121.12% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Connor, Clark & Lunn Investment Management (CC&L) Vancouver, British Columbia, Canada $52.8B AUM 58.98% 1-Year Est. Return

Dmitry Balyasny's RBBN Position: Q2 2026 in Review

Dmitry Balyasny opened a new position in Ribbon Communications (RBBN) in Q2 2026: 16,288 shares worth $38.1K. The stake represents ﹤0.01% of the portfolio and ranks #2912 among its holdings. This is a return to the name: Dmitry Balyasny previously reported a position in RBBN as recently as Q2 2025.

Dmitry Balyasny first reported a position in RBBN in Q4 2015 and has held it in 11 quarters since. The position peaked at $358K in Q4 2015. 159 funds tracked by Wall St. Rank hold RBBN as of Q2 2026.

Dmitry Balyasny held 16,288 shares of Ribbon Communications worth $38.1K as of Q2 2026.
Ribbon Communications was a new Dmitry Balyasny position in Q2 2026.
Ribbon Communications made up ﹤0.01% of Dmitry Balyasny's portfolio in Q2 2026, its #2912 holding.
Dmitry Balyasny first reported a position in Ribbon Communications in Q4 2015 and has held it in 11 quarters since.
Dmitry Balyasny's Ribbon Communications position peaked at $358K in Q4 2015.
159 funds tracked by Wall St. Rank held Ribbon Communications as of Q2 2026.

Based on Balyasny Asset Management's 13F filing for Q2 2026, filed 14 Aug 2026.