Citadel Advisors’s Iridium Communications IRDM Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $2.66M | Buy |
95,900
+45,600
| +91% | +$1.03M | ﹤0.01% | 5500 |
|
|
2025
Q4 | $874K | Buy |
50,300
+21,800
| +76% | +$385K | ﹤0.01% | 7699 |
|
|
2025
Q3 | $498K | Sell |
28,500
-175,100
| -86% | -$4.33M | ﹤0.01% | 9155 |
|
|
2025
Q2 | $6.14M | Buy |
203,600
+108,300
| +114% | +$2.82M | ﹤0.01% | 3772 |
|
|
2025
Q1 | $2.6M | Buy |
95,300
+27,000
| +40% | +$791K | ﹤0.01% | 5024 |
|
|
2024
Q4 | $1.98M | Buy |
68,300
+27,400
| +67% | +$815K | ﹤0.01% | 5650 |
|
|
2024
Q3 | $1.25M | Buy |
40,900
+9,100
| +29% | +$248K | ﹤0.01% | 6408 |
|
|
2024
Q2 | $847K | Sell |
31,800
-26,500
| -45% | -$746K | ﹤0.01% | 6932 |
|
|
2024
Q1 | $1.53M | Sell |
58,300
-75,100
| -56% | -$2.44M | ﹤0.01% | 6056 |
|
|
2023
Q4 | $5.49M | Buy |
133,400
+81,900
| +159% | +$3.24M | ﹤0.01% | 3651 |
|
|
2023
Q3 | $2.34M | Buy |
51,500
+600
| +1% | +$31.1K | ﹤0.01% | 4931 |
|
|
2023
Q2 | $3.16M | Sell |
50,900
-71,700
| -58% | -$4.44M | ﹤0.01% | 4372 |
|
|
2023
Q1 | $7.59M | Buy |
122,600
+89,600
| +272% | +$5.36M | ﹤0.01% | 3170 |
|
|
2022
Q4 | $1.7M | Sell |
33,000
-30,400
| -48% | -$1.53M | ﹤0.01% | 5786 |
|
|
2022
Q3 | $2.81M | Sell |
63,400
-2,200
| -3% | -$95.4K | ﹤0.01% | 4936 |
|
|
2022
Q2 | $2.46M | Sell |
65,600
-30,700
| -32% | -$1.15M | ﹤0.01% | 5139 |
|
|
2022
Q1 | $3.88M | Sell |
96,300
-37,100
| -28% | -$1.4M | ﹤0.01% | 4671 |
|
|
2021
Q4 | $5.51M | Sell |
133,400
-39,900
| -23% | -$1.61M | ﹤0.01% | 4133 |
|
|
2021
Q3 | $6.91M | Buy |
173,300
+54,400
| +46% | +$2.28M | ﹤0.01% | 3706 |
|
|
2021
Q2 | $4.75M | Sell |
118,900
-12,700
| -10% | -$493K | ﹤0.01% | 4552 |
|
|
2021
Q1 | $5.43M | Sell |
131,600
-43,700
| -25% | -$1.91M | ﹤0.01% | 4073 |
|
|
2020
Q4 | $6.89M | Sell |
175,300
-9,800
| -5% | -$308K | ﹤0.01% | 3143 |
|
|
2020
Q3 | $4.74M | Buy |
185,100
+31,800
| +21% | +$875K | ﹤0.01% | 3249 |
|
|
2020
Q2 | $3.9M | Sell |
153,300
-18,900
| -11% | -$443K | ﹤0.01% | 3437 |
|
|
2020
Q1 | $3.85M | Buy |
172,200
+76,700
| +80% | +$1.99M | ﹤0.01% | 3090 |
|
|
2019
Q4 | $2.35M | Sell |
95,500
-51,000
| -35% | -$1.22M | ﹤0.01% | 4145 |
|
|
2019
Q3 | $3.12M | Buy |
146,500
+57,300
| +64% | +$1.37M | ﹤0.01% | 3789 |
|
|
2019
Q2 | $2.08M | Buy |
89,200
+15,600
| +21% | +$388K | ﹤0.01% | 4451 |
|
|
2019
Q1 | $1.95M | Sell |
73,600
-48,200
| -40% | -$1.04M | ﹤0.01% | 4517 |
|
|
2018
Q4 | $2.25M | Sell |
121,800
-44,600
| -27% | -$915K | ﹤0.01% | 3967 |
|
|
2018
Q3 | $3.74M | Buy |
166,400
+45,500
| +38% | +$884K | ﹤0.01% | 3382 |
|
|
2018
Q2 | $1.95M | Buy |
120,900
+67,500
| +126% | +$918K | ﹤0.01% | 4157 |
|
|
2018
Q1 | $601K | Buy |
53,400
+30,800
| +136% | +$369K | ﹤0.01% | 5586 |
|
|
2017
Q4 | $267K | Sell |
22,600
-2,900
| -11% | -$33.5K | ﹤0.01% | 6651 |
|
|
2017
Q3 | $263K | Sell |
25,500
-4,200
| -14% | -$43.5K | ﹤0.01% | 6267 |
|
|
2017
Q2 | $328K | Buy |
29,700
+19,500
| +191% | +$204K | ﹤0.01% | 5759 |
|
|
2017
Q1 | $98K | Sell |
10,200
-14,800
| -59% | -$141K | ﹤0.01% | 6870 |
|
|
2016
Q4 | $240K | Buy |
25,000
+5,500
| +28% | +$49.1K | ﹤0.01% | 6019 |
|
|
2016
Q3 | $158K | Sell |
19,500
-13,600
| -41% | -$114K | ﹤0.01% | 6438 |
|
|
2016
Q2 | $294K | Buy |
33,100
+3,200
| +11% | +$26.3K | ﹤0.01% | 5246 |
|
|
2016
Q1 | $235K | Buy |
29,900
+13,300
| +80% | +$95.6K | ﹤0.01% | 5413 |
|
|
2015
Q4 | $140K | Sell |
16,600
-3,800
| -19% | -$28.9K | ﹤0.01% | 6288 |
|
|
2015
Q3 | $125K | Sell |
20,400
-21,900
| -52% | -$159K | ﹤0.01% | 6719 |
|
|
2015
Q2 | $385K | Buy |
42,300
+27,200
| +180% | +$280K | ﹤0.01% | 5379 |
|
|
2015
Q1 | $147K | Buy |
15,100
+5,000
| +50% | +$46.6K | ﹤0.01% | 6508 |
|
|
2014
Q4 | $98K | Sell |
10,100
-6,600
| -40% | -$61.7K | ﹤0.01% | 6652 |
|
|
2014
Q3 | $148K | Sell |
16,700
-5,700
| -25% | -$49.4K | ﹤0.01% | 6032 |
|
|
2014
Q2 | $190K | Buy |
22,400
+4,200
| +23% | +$31.6K | ﹤0.01% | 5622 |
|
|
2014
Q1 | $137K | Buy |
18,200
+12,600
| +225% | +$84.3K | ﹤0.01% | 5887 |
|
|
2013
Q4 | $35K | Buy |
5,600
+2,300
| +70% | +$13.9K | ﹤0.01% | 6214 |
|
|
2013
Q3 | $23K | Sell |
3,300
-800
| -20% | -$5.99K | ﹤0.01% | 6150 |
|
|
2013
Q2 | $32K | Buy |
+4,100
| New | +$28.8K | ﹤0.01% | 5870 |
|
Other funds holding IRDM
VPM
SHCM
VCM
GAM
Citadel Advisors's IRDM Position: Q1 2026 in Review
Citadel Advisors reduced its Iridium Communications (IRDM) stake by 94% in Q1 2026, selling an estimated $24.2M and leaving 63,573 shares worth $1.76M. The position accounts for ﹤0.01% of the portfolio, ranked #6347.
Citadel Advisors first reported a position in IRDM in Q2 2013 and has held it in 44 quarters since. The position peaked at $76.6M in Q1 2023. 379 funds tracked by Wall St. Rank hold IRDM as of Q1 2026.
- Citadel Advisors held 63,573 shares of Iridium Communications worth $1.76M as of Q1 2026.
- Citadel Advisors sold 1,076,642 Iridium Communications shares in Q1 2026, an estimated $24.2M.
- Iridium Communications made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #6347 holding.
- Citadel Advisors first reported a position in Iridium Communications in Q2 2013 and has held it in 44 quarters since.
- Citadel Advisors's Iridium Communications position peaked at $76.6M in Q1 2023.
- 379 funds tracked by Wall St. Rank held Iridium Communications as of Q1 2026.
Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.