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 | $2.41M | Sell |
86,700
-126,200
| -59% | -$2.84M | ﹤0.01% | 5700 |
|
|
2025
Q4 | $3.7M | Buy |
212,900
+56,200
| +36% | +$993K | ﹤0.01% | 4796 |
|
|
2025
Q3 | $2.74M | Buy |
156,700
+84,700
| +118% | +$2.09M | ﹤0.01% | 5472 |
|
|
2025
Q2 | $2.17M | Buy |
72,000
+19,000
| +36% | +$494K | ﹤0.01% | 5554 |
|
|
2025
Q1 | $1.45M | Sell |
53,000
-40,300
| -43% | -$1.18M | ﹤0.01% | 6160 |
|
|
2024
Q4 | $2.71M | Sell |
93,300
-100
| -0.1% | -$2.97K | ﹤0.01% | 5014 |
|
|
2024
Q3 | $2.84M | Buy |
93,400
+26,100
| +39% | +$711K | ﹤0.01% | 4877 |
|
|
2024
Q2 | $1.79M | Buy |
67,300
+37,100
| +123% | +$1.04M | ﹤0.01% | 5527 |
|
|
2024
Q1 | $790K | Sell |
30,200
-16,600
| -35% | -$540K | ﹤0.01% | 7422 |
|
|
2023
Q4 | $1.93M | Sell |
46,800
-20,100
| -30% | -$796K | ﹤0.01% | 5425 |
|
|
2023
Q3 | $3.04M | Sell |
66,900
-15,100
| -18% | -$782K | ﹤0.01% | 4459 |
|
|
2023
Q2 | $5.09M | Buy |
82,000
+6,500
| +9% | +$402K | ﹤0.01% | 3612 |
|
|
2023
Q1 | $4.68M | Buy |
75,500
+16,600
| +28% | +$994K | ﹤0.01% | 3932 |
|
|
2022
Q4 | $3.03M | Buy |
58,900
+38,300
| +186% | +$1.92M | ﹤0.01% | 4734 |
|
|
2022
Q3 | $914K | Hold |
20,600
| – | – | ﹤0.01% | 7192 |
|
|
2022
Q2 | $774K | Sell |
20,600
-22,700
| -52% | -$847K | ﹤0.01% | 7614 |
|
|
2022
Q1 | $1.75M | Buy |
43,300
+9,900
| +30% | +$373K | ﹤0.01% | 6388 |
|
|
2021
Q4 | $1.38M | Sell |
33,400
-3,500
| -9% | -$141K | ﹤0.01% | 7082 |
|
|
2021
Q3 | $1.47M | Sell |
36,900
-6,600
| -15% | -$277K | ﹤0.01% | 7126 |
|
|
2021
Q2 | $1.74M | Sell |
43,500
-34,900
| -45% | -$1.36M | ﹤0.01% | 6935 |
|
|
2021
Q1 | $3.23M | Buy |
78,400
+12,200
| +18% | +$534K | ﹤0.01% | 5257 |
|
|
2020
Q4 | $2.6M | Sell |
66,200
-8,700
| -12% | -$273K | ﹤0.01% | 4819 |
|
|
2020
Q3 | $1.92M | Sell |
74,900
-400
| -0.5% | -$11K | ﹤0.01% | 4794 |
|
|
2020
Q2 | $1.92M | Buy |
75,300
+900
| +1% | +$21.1K | ﹤0.01% | 4659 |
|
|
2020
Q1 | $1.66M | Sell |
74,400
-45,200
| -38% | -$1.17M | ﹤0.01% | 4447 |
|
|
2019
Q4 | $2.95M | Sell |
119,600
-36,700
| -23% | -$879K | ﹤0.01% | 3812 |
|
|
2019
Q3 | $3.33M | Buy |
156,300
+3,900
| +3% | +$92.9K | ﹤0.01% | 3690 |
|
|
2019
Q2 | $3.54M | Sell |
152,400
-398,400
| -72% | -$9.92M | ﹤0.01% | 3600 |
|
|
2019
Q1 | $14.6M | Sell |
550,800
-437,200
| -44% | -$9.41M | 0.01% | 1635 |
|
|
2018
Q4 | $18.2M | Buy |
988,000
+11,200
| +1% | +$230K | 0.01% | 1305 |
|
|
2018
Q3 | $22M | Buy |
976,800
+894,000
| +1,080% | +$17.4M | 0.01% | 1314 |
|
|
2018
Q2 | $1.33M | Buy |
82,800
+42,200
| +104% | +$574K | ﹤0.01% | 4741 |
|
|
2018
Q1 | $457K | Buy |
40,600
+400
| +1% | +$4.79K | ﹤0.01% | 6031 |
|
|
2017
Q4 | $474K | Buy |
+40,200
| New | +$465K | ﹤0.01% | 5736 |
|
|
2017
Q3 | – | Sell |
-13,300
| Closed | -$147K | – | 7757 |
|
|
2017
Q2 | $147K | Sell |
13,300
-22,000
| -62% | -$230K | ﹤0.01% | 6756 |
|
|
2017
Q1 | $341K | Buy |
35,300
+25,200
| +250% | +$240K | ﹤0.01% | 5685 |
|
|
2016
Q4 | $97K | Sell |
10,100
-25,600
| -72% | -$228K | ﹤0.01% | 6687 |
|
|
2016
Q3 | $290K | Buy |
+35,700
| New | +$299K | ﹤0.01% | 5718 |
|
|
2016
Q1 | – | Sell |
-600
| Closed | -$5K | – | 7343 |
|
|
2015
Q4 | $5K | Sell |
600
-1,300
| -68% | -$9.9K | ﹤0.01% | 8452 |
|
|
2015
Q3 | $12K | Buy |
1,900
+800
| +73% | +$5.81K | ﹤0.01% | 8403 |
|
|
2015
Q2 | $10K | Sell |
1,100
-2,800
| -72% | -$28.8K | ﹤0.01% | 8401 |
|
|
2015
Q1 | $38K | Sell |
3,900
-100
| -3% | -$932 | ﹤0.01% | 7561 |
|
|
2014
Q4 | $39K | Buy |
4,000
+2,300
| +135% | +$21.5K | ﹤0.01% | 7381 |
|
|
2014
Q3 | $15K | Sell |
1,700
-3,400
| -67% | -$29.5K | ﹤0.01% | 7613 |
|
|
2014
Q2 | $43K | Sell |
5,100
-8,500
| -63% | -$63.9K | ﹤0.01% | 6854 |
|
|
2014
Q1 | $102K | Sell |
13,600
-16,300
| -55% | -$109K | ﹤0.01% | 6183 |
|
|
2013
Q4 | $187K | Buy |
29,900
+9,000
| +43% | +$54.4K | ﹤0.01% | 5092 |
|
|
2013
Q3 | $144K | Buy |
20,900
+9,300
| +80% | +$69.6K | ﹤0.01% | 5050 |
|
|
2013
Q2 | $90K | Buy |
+11,600
| New | +$81.5K | ﹤0.01% | 5300 |
|
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.