Renaissance Technologies’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 | $3.55M | Buy |
+128,100
| New | +$2.88M | 0.01% | 1563 |
|
|
2025
Q2 | – | Sell |
-296,699
| Closed | -$8.11M | – | 3714 |
|
|
2025
Q1 | $8.11M | Buy |
296,699
+280,669
| +1,751% | +$8.23M | 0.01% | 1121 |
|
|
2024
Q4 | $465K | Sell |
16,030
-106,269
| -87% | -$3.16M | ﹤0.01% | 2872 |
|
|
2024
Q3 | $3.72M | Sell |
122,299
-96,401
| -44% | -$2.63M | 0.01% | 1635 |
|
|
2024
Q2 | $5.82M | Sell |
218,700
-357,999
| -62% | -$10.1M | 0.01% | 1207 |
|
|
2024
Q1 | $15.1M | Buy |
576,699
+12,900
| +2% | +$420K | 0.02% | 773 |
|
|
2023
Q4 | $23.2M | Buy |
563,799
+145,000
| +35% | +$5.74M | 0.04% | 555 |
|
|
2023
Q3 | $19.1M | Sell |
418,799
-20,100
| -5% | -$1.04M | 0.03% | 594 |
|
|
2023
Q2 | $27.3M | Sell |
438,899
-173,400
| -28% | -$10.7M | 0.04% | 531 |
|
|
2023
Q1 | $37.9M | Buy |
612,299
+162,539
| +36% | +$9.73M | 0.05% | 427 |
|
|
2022
Q4 | $23.1M | Buy |
449,760
+62,461
| +16% | +$3.14M | 0.03% | 640 |
|
|
2022
Q3 | $17.2M | Buy |
387,299
+67,400
| +21% | +$2.92M | 0.02% | 748 |
|
|
2022
Q2 | $12M | Sell |
319,899
-368,800
| -54% | -$13.8M | 0.01% | 1006 |
|
|
2022
Q1 | $27.8M | Buy |
688,699
+438,000
| +175% | +$16.5M | 0.03% | 576 |
|
|
2021
Q4 | $10.4M | Buy |
250,699
+168,900
| +206% | +$6.82M | 0.01% | 1053 |
|
|
2021
Q3 | $3.26M | Buy |
+81,799
| New | +$3.43M | ﹤0.01% | 1723 |
|
|
2021
Q1 | – | Sell |
-48,789
| Closed | -$1.92M | – | 3499 |
|
|
2020
Q4 | $1.92M | Sell |
48,789
-313,711
| -87% | -$9.86M | ﹤0.01% | 2139 |
|
|
2020
Q3 | $9.27M | Sell |
362,500
-477,700
| -57% | -$13.1M | 0.01% | 1193 |
|
|
2020
Q2 | $21.4M | Sell |
840,200
-295,500
| -26% | -$6.93M | 0.02% | 781 |
|
|
2020
Q1 | $25.4M | Sell |
1,135,700
-519,300
| -31% | -$13.4M | 0.02% | 661 |
|
|
2019
Q4 | $40.8M | Sell |
1,655,000
-353,100
| -18% | -$8.46M | 0.03% | 622 |
|
|
2019
Q3 | $42.7M | Sell |
2,008,100
-518,899
| -21% | -$12.4M | 0.04% | 561 |
|
|
2019
Q2 | $58.8M | Sell |
2,526,999
-337,500
| -12% | -$8.4M | 0.05% | 422 |
|
|
2019
Q1 | $75.7M | Buy |
2,864,499
+330,200
| +13% | +$7.11M | 0.07% | 345 |
|
|
2018
Q4 | $46.8M | Buy |
2,534,299
+794,399
| +46% | +$16.3M | 0.05% | 454 |
|
|
2018
Q3 | $39.1M | Buy |
1,739,900
+701,300
| +68% | +$13.6M | 0.04% | 546 |
|
|
2018
Q2 | $16.7M | Buy |
1,038,600
+677,100
| +187% | +$9.21M | 0.02% | 1037 |
|
|
2018
Q1 | $4.07M | Buy |
361,500
+113,701
| +46% | +$1.36M | ﹤0.01% | 1945 |
|
|
2017
Q4 | $2.92M | Buy |
247,799
+33,100
| +15% | +$383K | ﹤0.01% | 2126 |
|
|
2017
Q3 | $2.21M | Buy |
214,699
+111,600
| +108% | +$1.16M | ﹤0.01% | 2251 |
|
|
2017
Q2 | $1.14M | Buy |
+103,099
| New | +$1.08M | ﹤0.01% | 2517 |
|
|
2016
Q4 | – | Sell |
-156,600
| Closed | -$1.27M | – | 3347 |
|
|
2016
Q3 | $1.27M | Buy |
156,600
+93,900
| +150% | +$788K | ﹤0.01% | 2443 |
|
|
2016
Q2 | $557K | Buy |
+62,700
| New | +$515K | ﹤0.01% | 2757 |
|
|
2015
Q4 | – | Sell |
-178,399
| Closed | -$1.1M | – | 3340 |
|
|
2015
Q3 | $1.1M | Buy |
+178,399
| New | +$1.3M | ﹤0.01% | 2335 |
|
|
2015
Q2 | – | Sell |
-68,100
| Closed | -$661K | – | 3289 |
|
|
2015
Q1 | $661K | Sell |
68,100
-132,699
| -66% | -$1.24M | ﹤0.01% | 2500 |
|
|
2014
Q4 | $1.96M | Sell |
200,799
-47,900
| -19% | -$448K | ﹤0.01% | 1804 |
|
|
2014
Q3 | $2.2M | Buy |
248,699
+131,000
| +111% | +$1.14M | 0.01% | 1621 |
|
|
2014
Q2 | $996K | Buy |
+117,699
| New | +$885K | ﹤0.01% | 2051 |
|
|
2014
Q1 | – | Sell |
-72,649
| Closed | -$454K | – | 2919 |
|
|
2013
Q4 | $454K | Buy |
+72,649
| New | +$439K | ﹤0.01% | 2383 |
|
|
2013
Q3 | – | Sell |
-118,249
| Closed | -$918K | – | 2874 |
|
|
2013
Q2 | $918K | Buy |
+118,249
| New | +$831K | ﹤0.01% | 1971 |
|
Other funds holding IRDM
VPM
SHCM
VCM
GAM
Renaissance Technologies's IRDM Position: Q1 2026 in Review
Renaissance Technologies opened a new position in Iridium Communications (IRDM) in Q1 2026: 128,100 shares worth $3.55M. The stake represents 0.01% of the portfolio and ranks #1563 among its holdings. This is a return to the name: Renaissance Technologies previously reported a position in IRDM as recently as Q1 2025.
Renaissance Technologies first reported a position in IRDM in Q2 2013 and has held it in 40 quarters since. The position peaked at $75.7M in Q1 2019. 379 funds tracked by Wall St. Rank hold IRDM as of Q1 2026.
- Renaissance Technologies held 128,100 shares of Iridium Communications worth $3.55M as of Q1 2026.
- Iridium Communications was a new Renaissance Technologies position in Q1 2026.
- Iridium Communications made up 0.01% of Renaissance Technologies's portfolio in Q1 2026, its #1563 holding.
- Renaissance Technologies first reported a position in Iridium Communications in Q2 2013 and has held it in 40 quarters since.
- Renaissance Technologies's Iridium Communications position peaked at $75.7M in Q1 2019.
- 379 funds tracked by Wall St. Rank held Iridium Communications as of Q1 2026.
Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.