ProShare Advisors
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ProShare Advisors’s Ribbon Communications RBBN Stock Holding History

ProShare Advisors’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 		$28.8K Sell
13,597
-3,546
-21% -$8.49K ﹤0.01% 1827
2025
Q4 		$49.4K Buy
17,143
+1,076
+7% +$3.47K ﹤0.01% 1957
2025
Q3 		$61.1K Sell
16,067
-3,169
-16% -$12.5K ﹤0.01% 1912
2025
Q2 		$77.1K Sell
19,236
-581
-3% -$2.09K ﹤0.01% 1918
2025
Q1 		$77.7K Sell
19,817
-5,965
-23% -$25.1K ﹤0.01% 1883
2024
Q4 		$107K Buy
25,782
+8,485
+49% +$32K ﹤0.01% 2062
2024
Q3 		$56.2K Buy
17,297
+5,399
+45% +$17.5K ﹤0.01% 1964
2024
Q2 		$39.1K Sell
11,898
-4,063
-25% -$12.4K ﹤0.01% 1766
2024
Q1 		$51.1K Buy
15,961
+1,257
+9% +$3.82K ﹤0.01% 1901
2023
Q4 		$42.6K Buy
14,704
+3,163
+27% +$7.13K ﹤0.01% 1877
2023
Q3 		$30.9K Buy
11,541
+116
+1% +$339 ﹤0.01% 1757
2023
Q2 		$31.9K Buy
+11,425
New +$31.7K ﹤0.01% 1811
2022
Q2 		– Sell
-13,884
Closed -$43K – 2054
2022
Q1 		$43K Sell
13,884
-2,142
-13% -$8.78K ﹤0.01% 2123
2021
Q4 		$97K Buy
+16,026
New +$95K ﹤0.01% 2209
2021
Q3 		– Sell
-18,896
Closed -$144K – 2209
2021
Q2 		$144K Buy
18,896
+59
+0.3% +$452 ﹤0.01% 2226
2021
Q1 		$155K Buy
18,837
+3,467
+23% +$28.7K ﹤0.01% 2098
2020
Q4 		$101K Buy
+15,370
New +$81.2K ﹤0.01% 1986
2015
Q1 		– Sell
-10,556
Closed -$210K – 1940
2014
Q4 		$210K Sell
10,556
-8,972
-46% -$159K ﹤0.01% 1722
2014
Q3 		$334K Sell
19,528
-4,427
-18% -$84.5K ﹤0.01% 1642
2014
Q2 		$430K Sell
23,955
-17,216
-42% -$291K 0.01% 1679
2014
Q1 		$694K Buy
41,171
+37,823
+1,130% +$629K 0.01% 1606
2013
Q4 		$53K Sell
3,348
-24,050
-88% -$371K ﹤0.01% 1316
2013
Q3 		$463K Sell
27,398
-76
-0.3% -$1.29K 0.01% 1537
2013
Q2 		$413K Buy
+27,474
New +$367K 0.01% 1470

Other funds holding RBBN

JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Neuberger Berman Group
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
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
RA
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
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Connor, Clark & Lunn Investment Management (CC&L)
Connor, Clark & Lunn Investment Management (CC&L) Vancouver, British Columbia, Canada $43.4B AUM 51.29% 1-Year Est. Return

ProShare Advisors's RBBN Position: Q1 2026 in Review

ProShare Advisors reduced its Ribbon Communications (RBBN) stake by 21% in Q1 2026, selling an estimated $8.49K and leaving 13,597 shares worth $28.8K. The position accounts for ﹤0.01% of the portfolio, ranked #1827.

ProShare Advisors first reported a position in RBBN in Q2 2013 and has held it in 24 quarters since. The position peaked at $694K in Q1 2014. 150 funds tracked by Wall St. Rank hold RBBN as of Q1 2026.

  • ProShare Advisors held 13,597 shares of Ribbon Communications worth $28.8K as of Q1 2026.
  • ProShare Advisors sold 3,546 Ribbon Communications shares in Q1 2026, an estimated $8.49K.
  • Ribbon Communications made up ﹤0.01% of ProShare Advisors's portfolio in Q1 2026, its #1827 holding.
  • ProShare Advisors first reported a position in Ribbon Communications in Q2 2013 and has held it in 24 quarters since.
  • ProShare Advisors's Ribbon Communications position peaked at $694K in Q1 2014.
  • 150 funds tracked by Wall St. Rank held Ribbon Communications as of Q1 2026.

Based on ProShare Advisors's 13F filing for Q1 2026, filed 27 Apr 2026.