Citadel Advisors’s Ribbon Communications RBBN Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $1.22M | Buy |
574,989
+521,086
| +967% | +$1.25M | ﹤0.01% | 7220 |
|
|
2025
Q4 | $155K | Sell |
53,903
-1,651
| -3% | -$5.33K | ﹤0.01% | 11277 |
|
|
2025
Q3 | $211K | Buy |
+55,554
| New | +$218K | ﹤0.01% | 11157 |
|
|
2025
Q1 | – | Sell |
-132,280
| Closed | -$557K | – | 15382 |
|
|
2024
Q4 | $550K | Buy |
132,280
+51,024
| +63% | +$193K | ﹤0.01% | 8347 |
|
|
2024
Q3 | $264K | Sell |
81,256
-154,423
| -66% | -$501K | ﹤0.01% | 9576 |
|
|
2024
Q2 | $775K | Buy |
235,679
+160,479
| +213% | +$488K | ﹤0.01% | 7119 |
|
|
2024
Q1 | $241K | Buy |
75,200
+4,738
| +7% | +$14.4K | ﹤0.01% | 9936 |
|
|
2023
Q4 | $204K | Buy |
70,462
+13,712
| +24% | +$30.9K | ﹤0.01% | 9908 |
|
|
2023
Q3 | $152K | Sell |
56,750
-177,340
| -76% | -$518K | ﹤0.01% | 10330 |
|
|
2023
Q2 | $653K | Sell |
234,090
-305,237
| -57% | -$847K | ﹤0.01% | 7347 |
|
|
2023
Q1 | $1.84M | Buy |
539,327
+499,792
| +1,264% | +$1.83M | ﹤0.01% | 5540 |
|
|
2022
Q4 | $110K | Buy |
39,535
+13,948
| +55% | +$36.1K | ﹤0.01% | 11083 |
|
|
2022
Q3 | $57K | Sell |
25,587
-2,596
| -9% | -$8.22K | ﹤0.01% | 11531 |
|
|
2022
Q2 | $86K | Sell |
28,183
-220,762
| -89% | -$667K | ﹤0.01% | 11540 |
|
|
2022
Q1 | $769K | Buy |
248,945
+215,684
| +648% | +$884K | ﹤0.01% | 8327 |
|
|
2021
Q4 | $201K | Buy |
33,261
+17,156
| +107% | +$102K | ﹤0.01% | 11849 |
|
|
2021
Q3 | $96K | Sell |
16,105
-52,262
| -76% | -$353K | ﹤0.01% | 12929 |
|
|
2021
Q2 | $521K | Buy |
68,367
+51,729
| +311% | +$396K | ﹤0.01% | 9982 |
|
|
2021
Q1 | $137K | Buy |
+16,638
| New | +$138K | ﹤0.01% | 12152 |
|
|
2020
Q2 | – | Sell |
-76,664
| Closed | -$278K | – | 10373 |
|
|
2020
Q1 | $232K | Buy |
+76,664
| New | +$230K | ﹤0.01% | 7754 |
|
|
2019
Q3 | – | Sell |
-20,226
| Closed | -$99K | – | 9653 |
|
|
2019
Q2 | $99K | Sell |
20,226
-124,699
| -86% | -$609K | ﹤0.01% | 8536 |
|
|
2019
Q1 | $746K | Buy |
144,925
+74,089
| +105% | +$397K | ﹤0.01% | 6110 |
|
|
2018
Q4 | $341K | Buy |
70,836
+13,928
| +24% | +$80.7K | ﹤0.01% | 7041 |
|
|
2018
Q3 | $388K | Sell |
56,908
-81,225
| -59% | -$578K | ﹤0.01% | 7131 |
|
|
2018
Q2 | $983K | Sell |
138,133
-48,544
| -26% | -$284K | ﹤0.01% | 5247 |
|
|
2018
Q1 | $952K | Buy |
186,677
+115,264
| +161% | +$746K | ﹤0.01% | 4886 |
|
|
2017
Q4 | $552K | Sell |
71,413
-34,051
| -32% | -$261K | ﹤0.01% | 5505 |
|
|
2017
Q3 | $806K | Buy |
105,464
+21,537
| +26% | +$154K | ﹤0.01% | 4621 |
|
|
2017
Q2 | $624K | Sell |
83,927
-125,539
| -60% | -$925K | ﹤0.01% | 4803 |
|
|
2017
Q1 | $1.38M | Buy |
209,466
+38,202
| +22% | +$242K | ﹤0.01% | 3540 |
|
|
2016
Q4 | $1.08M | Buy |
171,264
+139,732
| +443% | +$918K | ﹤0.01% | 3746 |
|
|
2016
Q3 | $245K | Sell |
31,532
-1,369
| -4% | -$12K | ﹤0.01% | 6004 |
|
|
2016
Q2 | $286K | Buy |
32,901
+22,300
| +210% | +$186K | ﹤0.01% | 5284 |
|
|
2016
Q1 | $80K | Sell |
10,601
-140,297
| -93% | -$938K | ﹤0.01% | 6110 |
|
|
2015
Q4 | $1.08M | Sell |
150,898
-220,998
| -59% | -$1.48M | ﹤0.01% | 3472 |
|
|
2015
Q3 | $2.13M | Buy |
371,896
+256,627
| +223% | +$1.73M | ﹤0.01% | 2858 |
|
|
2015
Q2 | $798K | Sell |
115,269
-138,471
| -55% | -$1.09M | ﹤0.01% | 4285 |
|
|
2015
Q1 | $2M | Buy |
253,740
+132,610
| +109% | +$2.18M | ﹤0.01% | 3064 |
|
|
2014
Q4 | $2.4M | Buy |
121,130
+83,866
| +225% | +$1.48M | ﹤0.01% | 2696 |
|
|
2014
Q3 | $638K | Sell |
37,264
-79,889
| -68% | -$1.52M | ﹤0.01% | 4312 |
|
|
2014
Q2 | $2.1M | Buy |
117,153
+7,002
| +6% | +$118K | ﹤0.01% | 2690 |
|
|
2014
Q1 | $1.86M | Buy |
110,151
+74,608
| +210% | +$1.24M | ﹤0.01% | 2732 |
|
|
2013
Q4 | $560K | Buy |
35,543
+20,930
| +143% | +$323K | ﹤0.01% | 3872 |
|
|
2013
Q3 | $247K | Buy |
14,613
+12,291
| +529% | +$209K | ﹤0.01% | 4557 |
|
|
2013
Q2 | $35K | Buy |
+2,322
| New | +$31K | ﹤0.01% | 5828 |
|
Other funds holding RBBN
PCMI
RA
VCM
VPM
Citadel Advisors's RBBN Position: Q1 2026 in Review
Citadel Advisors increased its Ribbon Communications (RBBN) stake by 967% in Q1 2026, buying an estimated $1.25M and bringing the position to 574,989 shares worth $1.22M. The position accounts for ﹤0.01% of the portfolio, ranked #7220.
Citadel Advisors first reported a position in RBBN in Q2 2013 and has held it in 45 quarters since. The position peaked at $2.4M in Q4 2014. 150 funds tracked by Wall St. Rank hold RBBN as of Q1 2026.
- Citadel Advisors held 574,989 shares of Ribbon Communications worth $1.22M as of Q1 2026.
- Citadel Advisors bought 521,086 Ribbon Communications shares in Q1 2026, an estimated $1.25M.
- Ribbon Communications made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #7220 holding.
- Citadel Advisors first reported a position in Ribbon Communications in Q2 2013 and has held it in 45 quarters since.
- Citadel Advisors's Ribbon Communications position peaked at $2.4M in Q4 2014.
- 150 funds tracked by Wall St. Rank held Ribbon Communications as of Q1 2026.
Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.