Jacobs Levy Equity Management’s Ribbon Communications RBBN Stock Holding History

Jacobs Levy Equity 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
2026 Q1	$1.45M	Sell	685,310 -204,858	-23%	-$490K	0.01%	644
2025 Q4	$2.56M	Buy	890,168 +418,967	+89%	+$1.35M	0.01%	544
2025 Q3	$1.79M	Buy	471,201 +39,104	+9%	+$154K	0.01%	612
2025 Q2	$1.73M	Buy	432,097 +16,829	+4%	+$60.7K	0.01%	650
2025 Q1	$1.63M	Sell	415,268 -11,664	-3%	-$49.1K	0.01%	707
2024 Q4	$1.78M	Buy	426,932 +17,556	+4%	+$66.3K	0.01%	616
2024 Q3	$1.33M	Sell	409,376 -350,847	-46%	-$1.14M	0.01%	677
2024 Q2	$2.5M	Sell	760,223 -45,308	-6%	-$138K	0.01%	567
2024 Q1	$2.58M	Sell	805,531 -45,236	-5%	-$138K	0.01%	555
2023 Q4	$2.47M	Sell	850,767 -143,344	-14%	-$323K	0.01%	570
2023 Q3	$2.66M	Sell	994,111 -274,762	-22%	-$802K	0.02%	516
2023 Q2	$3.54M	Buy	1,268,873 +301,512	+31%	+$837K	0.02%	471
2023 Q1	$3.31M	Sell	967,361 -47,116	-5%	-$172K	0.02%	478
2022 Q4	$2.83M	Buy	1,014,477 +429,592	+73%	+$1.11M	0.02%	488
2022 Q3	$1.3M	Sell	584,885 -24,342	-4%	-$77.1K	0.01%	654
2022 Q2	$1.85M	Buy	609,227 +4,555	+0.8%	+$13.8K	0.01%	619
2022 Q1	$1.87M	Sell	604,672 -286	-0%	-$1.17K	0.01%	637
2021 Q4	$3.66M	Sell	604,958 -17,139	-3%	-$102K	0.02%	491
2021 Q3	$3.72M	Sell	622,097 -6,378	-1%	-$43.1K	0.03%	494
2021 Q2	$4.78M	Buy	628,475 +189,221	+43%	+$1.45M	0.03%	441
2021 Q1	$3.61M	Sell	439,254 -23,571	-5%	-$195K	0.03%	489
2020 Q4	$3.04M	Sell	462,825 -2,763	-0.6%	-$14.6K	0.03%	493
2020 Q3	$1.8M	Sell	465,588 -75,775	-14%	-$320K	0.02%	537
2020 Q2	$2.13M	Buy	541,363 +7,805	+1%	+$28.3K	0.02%	525
2020 Q1	$1.62M	Buy	533,558 +224,216	+72%	+$674K	0.02%	530
2019 Q4	$959K	Buy	309,342 +152,347	+97%	+$606K	0.01%	699
2019 Q3	$917K	Buy	156,995 +64,310	+69%	+$338K	0.01%	626
2019 Q2	$453K	Buy	92,685 +8,100	+10%	+$39.6K	0.01%	753
2019 Q1	$436K	Buy	+84,585	New	+$453K	0.01%	794
2018 Q4	–	Sell	-29,099	Closed	-$199K	–	1053
2018 Q3	$199K	Buy	+29,099	New	+$207K	﹤0.01%	927
2017 Q2	–	Sell	-440,110	Closed	-$2.9M	–	1002
2017 Q1	$2.9M	Sell	440,110 -6,600	-1%	-$41.8K	0.06%	343
2016 Q4	$2.81M	Sell	446,710 -31,700	-7%	-$208K	0.05%	360
2016 Q3	$3.72M	Sell	478,410 -5,600	-1%	-$48.9K	0.07%	308
2016 Q2	$4.21M	Buy	484,010 +41,500	+9%	+$346K	0.09%	274
2016 Q1	$3.33M	Buy	442,510 +140,200	+46%	+$937K	0.07%	292
2015 Q4	$2.15M	Buy	302,310 +242,510	+406%	+$1.63M	0.04%	330
2015 Q3	$342K	Buy	59,800 +10,500	+21%	+$70.8K	0.01%	634
2015 Q2	$341K	Buy	+49,300	New	+$387K	0.01%	630
2015 Q1	–	Sell	-276,532	Closed	-$5.49M	–	857
2014 Q4	$5.49M	Sell	276,532 -32,340	-10%	-$572K	0.09%	235
2014 Q3	$5.28M	Buy	308,872 +10,740	+4%	+$205K	0.09%	234
2014 Q2	$5.35M	Buy	298,132 +30,617	+11%	+$518K	0.09%	261
2014 Q1	$4.51M	Sell	267,515 -2,512	-0.9%	-$41.8K	0.08%	274
2013 Q4	$4.25M	Buy	270,027 +154,023	+133%	+$2.38M	0.06%	317
2013 Q3	$1.96M	Buy	116,004 +70,984	+158%	+$1.21M	0.03%	415
2013 Q2	$678K	Buy	+45,020	New	+$601K	0.01%	658

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 $5.72T AUM 30.48% 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

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

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

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

Jacobs Levy Equity Management's RBBN Position: Q1 2026 in Review

Jacobs Levy Equity Management reduced its Ribbon Communications (RBBN) stake by 23% in Q1 2026, selling an estimated $490K and leaving 685,310 shares worth $1.45M. The position accounts for 0.01% of the portfolio, ranked #644.

Jacobs Levy Equity Management first reported a position in RBBN in Q2 2013 and has held it in 45 quarters since. The position peaked at $5.49M in Q4 2014. 150 funds tracked by Wall St. Rank hold RBBN as of Q1 2026.

Jacobs Levy Equity Management held 685,310 shares of Ribbon Communications worth $1.45M as of Q1 2026.
Jacobs Levy Equity Management sold 204,858 Ribbon Communications shares in Q1 2026, an estimated $490K.
Ribbon Communications made up 0.01% of Jacobs Levy Equity Management's portfolio in Q1 2026, its #644 holding.
Jacobs Levy Equity Management first reported a position in Ribbon Communications in Q2 2013 and has held it in 45 quarters since.
Jacobs Levy Equity Management's Ribbon Communications position peaked at $5.49M in Q4 2014.
150 funds tracked by Wall St. Rank held Ribbon Communications as of Q1 2026.

Based on Jacobs Levy Equity Management's 13F filing for Q1 2026, filed 15 May 2026.