Hillsdale Investment Management’s Ribbon Communications RBBN Stock Holding History

Hillsdale Investment Management’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
2025 Q2	–	Sell	-326,627	Closed	-$1.28M	–	698
2025 Q1	$1.28M	Buy	+326,627	New	+$1.38M	0.07%	239
2022 Q1	–	Sell	-578,300	Closed	-$3.5M	–	604
2021 Q4	$3.5M	Sell	578,300 -500	-0.1%	-$2.96K	0.23%	140
2021 Q3	$3.46M	Hold	578,800	–	–	0.27%	132
2021 Q2	$4.4M	Hold	578,800	–	–	0.35%	93
2021 Q1	$4.75M	Hold	578,800	–	–	0.4%	79
2020 Q4	$3.8M	Sell	578,800 -5,100	-0.9%	-$26.9K	0.36%	92
2020 Q3	$2.26M	Hold	583,900	–	–	0.22%	141
2020 Q2	$2.29M	Sell	583,900 -10,000	-2%	-$36.3K	0.21%	146
2020 Q1	$1.8M	Sell	593,900 -5,700	-1%	-$17.1K	0.22%	136
2019 Q4	$1.86M	Buy	599,600 +366,225	+157%	+$1.46M	0.16%	161
2019 Q3	$1.36M	Buy	+233,375	New	+$1.23M	0.12%	171
2016 Q4	–	Sell	-53,300	Closed	-$415K	–	535
2016 Q3	$415K	Buy	53,300 +5,000	+10%	+$43.7K	0.11%	188
2016 Q2	$420K	Hold	48,300	–	–	0.12%	141
2016 Q1	$364K	Buy	+48,300	New	+$323K	0.12%	201

Other funds holding RBBN

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Neuberger Berman Group New York $131B AUM 28.36% 1-Year Est. Return

PCMI

Paradigm Capital Management Inc Albany, New York $2.61B AUM 78.58% 1-Year Est. Return

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

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Royce & Associates New York $10.1B AUM 42.88% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Connor, Clark & Lunn Investment Management (CC&L) Vancouver, British Columbia, Canada $43.4B AUM 51.29% 1-Year Est. Return

Hillsdale Investment Management's RBBN Position: Q2 2025 in Review

Hillsdale Investment Management sold out of Ribbon Communications (RBBN) in Q2 2025, closing a stake of 326,627 shares — an estimated $1.28M sold.

Hillsdale Investment Management first reported a position in RBBN in Q1 2016 and held it in 14 quarters. The position peaked at $4.75M in Q1 2021. 145 funds tracked by Wall St. Rank hold RBBN as of Q2 2025.

Hillsdale Investment Management reported no remaining Ribbon Communications position as of Q2 2025 after selling out during the quarter.
Hillsdale Investment Management sold 326,627 Ribbon Communications shares in Q2 2025, an estimated $1.28M.
Hillsdale Investment Management first reported a position in Ribbon Communications in Q1 2016 and held it in 14 quarters.
Hillsdale Investment Management's Ribbon Communications position peaked at $4.75M in Q1 2021.
145 funds tracked by Wall St. Rank held Ribbon Communications as of Q2 2025.

Based on Hillsdale Investment Management's 13F filing for Q2 2025, filed 12 Aug 2025.