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 | |
|---|---|---|---|---|---|---|---|---|
|
2025
Q2 | – | Sell |
-8,300
| Closed | -$32.5K | – | 14630 |
|
|
2025
Q1 | $32.5K | Buy |
8,300
+8,000
| +2,667% | +$33.7K | ﹤0.01% | 12740 |
|
|
2024
Q4 | $1.25K | Hold |
300
| – | – | ﹤0.01% | 14210 |
|
|
2024
Q3 | $975 | Sell |
300
-100
| -25% | -$324 | ﹤0.01% | 13927 |
|
|
2024
Q2 | $1.32K | Sell |
400
-300
| -43% | -$912 | ﹤0.01% | 13832 |
|
|
2024
Q1 | $2.24K | Sell |
700
-2,100
| -75% | -$6.39K | ﹤0.01% | 14023 |
|
|
2023
Q4 | $8.12K | Buy |
+2,800
| New | +$6.31K | ﹤0.01% | 13248 |
|
|
2023
Q3 | – | Sell |
-29,000
| Closed | -$80.9K | – | 14963 |
|
|
2023
Q2 | $80.9K | Buy |
29,000
+6,300
| +28% | +$17.5K | ﹤0.01% | 11236 |
|
|
2023
Q1 | $77.6K | Buy |
22,700
+22,500
| +11,250% | +$82.2K | ﹤0.01% | 11602 |
|
|
2022
Q4 | $558 | Buy |
+200
| New | +$518 | ﹤0.01% | 14630 |
|
|
2021
Q3 | – | Sell |
-12,500
| Closed | -$95K | – | 14497 |
|
|
2021
Q2 | $95K | Sell |
12,500
-112,000
| -90% | -$857K | ﹤0.01% | 12960 |
|
|
2021
Q1 | $1.02M | Buy |
124,500
+85,100
| +216% | +$704K | ﹤0.01% | 8056 |
|
|
2020
Q4 | $258K | Buy |
+39,400
| New | +$208K | ﹤0.01% | 9339 |
|
|
2019
Q3 | – | Sell |
-20,600
| Closed | -$101K | – | 9654 |
|
|
2019
Q2 | $101K | Sell |
20,600
-5,500
| -21% | -$26.9K | ﹤0.01% | 8528 |
|
|
2019
Q1 | $134K | Buy |
+26,100
| New | +$140K | ﹤0.01% | 8433 |
|
|
2017
Q3 | – | Sell |
-17,200
| Closed | -$128K | – | 7939 |
|
|
2017
Q2 | $128K | Buy |
+17,200
| New | +$127K | ﹤0.01% | 6822 |
|
|
2017
Q1 | – | Sell |
-12,200
| Closed | -$77K | – | 7925 |
|
|
2016
Q4 | $77K | Buy |
+12,200
| New | +$80.1K | ﹤0.01% | 6765 |
|
|
2016
Q3 | – | Sell |
-13,400
| Closed | -$116K | – | 7659 |
|
|
2016
Q2 | $116K | Buy |
13,400
+3,300
| +33% | +$27.5K | ﹤0.01% | 6129 |
|
|
2016
Q1 | $76K | Sell |
10,100
-15,200
| -60% | -$102K | ﹤0.01% | 6134 |
|
|
2015
Q4 | $180K | Buy |
25,300
+12,000
| +90% | +$80.5K | ﹤0.01% | 5938 |
|
|
2015
Q3 | $76K | Sell |
13,300
-64,700
| -83% | -$436K | ﹤0.01% | 7224 |
|
|
2015
Q2 | $540K | Buy |
78,000
+36,700
| +89% | +$288K | ﹤0.01% | 4837 |
|
|
2015
Q1 | $325K | Buy |
41,300
+39,800
| +2,653% | +$656K | ﹤0.01% | 5537 |
|
|
2014
Q4 | $30K | Sell |
1,500
-500
| -25% | -$8.85K | ﹤0.01% | 7553 |
|
|
2014
Q3 | $34K | Sell |
2,000
-1,220
| -38% | -$23.3K | ﹤0.01% | 7139 |
|
|
2014
Q2 | $58K | Sell |
3,220
-4,300
| -57% | -$72.7K | ﹤0.01% | 6652 |
|
|
2014
Q1 | $127K | Sell |
7,520
-460
| -6% | -$7.65K | ﹤0.01% | 5960 |
|
|
2013
Q4 | $126K | Buy |
7,980
+7,280
| +1,040% | +$112K | ﹤0.01% | 5424 |
|
|
2013
Q3 | $12K | Sell |
700
-20
| -3% | -$340 | ﹤0.01% | 6423 |
|
|
2013
Q2 | $11K | Buy |
+720
| New | +$9.61K | ﹤0.01% | 6216 |
|
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.