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Dmitry Balyasny’s Iridium Communications IRDM Stock Holding History

Dmitry Balyasny’s Portfolio IRDM Stock Details IRDM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$53.1M Buy
967,572
+844,017
+683% +$36.1M 0.07% 342
2026
Q1 		$3.43M Sell
123,555
-67,003
-35% -$1.51M ﹤0.01% 1537
2025
Q4 		$3.31M Sell
190,558
-102,808
-35% -$1.82M ﹤0.01% 1612
2025
Q3 		$5.12M Buy
+293,366
New +$7.25M 0.01% 1361
2025
Q1 		– Sell
-206,774
Closed -$6M – 3037
2024
Q4 		$6M Buy
+206,774
New +$6.15M 0.01% 1186
2024
Q1 		– Sell
-7,827
Closed -$322K – 2856
2023
Q4 		$322K Buy
7,827
+3,146
+67% +$125K ﹤0.01% 2128
2023
Q3 		$213K Sell
4,681
-200,856
-98% -$10.4M ﹤0.01% 2016
2023
Q2 		$12.8M Buy
+205,537
New +$12.7M 0.03% 673
2023
Q1 		– Sell
-22,472
Closed -$1.16M – 2898
2022
Q4 		$1.16M Sell
22,472
-18,829
-46% -$945K ﹤0.01% 1605
2022
Q3 		$1.83M Buy
41,301
+27,024
+189% +$1.17M 0.01% 1539
2022
Q2 		$536K Buy
+14,277
New +$532K ﹤0.01% 1954
2022
Q1 		– Sell
-15,484
Closed -$639K – 2647
2021
Q4 		$639K Sell
15,484
-9,526
-38% -$385K ﹤0.01% 1561
2021
Q3 		$997K Buy
+25,010
New +$1.05M ﹤0.01% 1325
2020
Q2 		– Sell
-16,276
Closed -$363K – 1309
2020
Q1 		$363K Buy
+16,276
New +$421K ﹤0.01% 955
2019
Q4 		– Sell
-24,728
Closed -$526K – 1325
2019
Q3 		$526K Buy
+24,728
New +$589K ﹤0.01% 934
2016
Q3 		– Sell
-11,144
Closed -$99K – 1129
2016
Q2 		$99K Buy
+11,144
New +$91.6K ﹤0.01% 1097
2015
Q4 		– Sell
-13,600
Closed -$84K – 1331
2015
Q3 		$84K Buy
+13,600
New +$98.8K ﹤0.01% 1077
2014
Q4 		– Sell
-100,000
Closed -$885K – 743
2014
Q3 		$885K Buy
+100,000
New +$867K 0.01% 661

Other funds holding IRDM

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
SHCM
Silver Heights Capital Management Toronto, Ontario, Canada $324M AUM 55.4% 1-Year Est. Return
GAM
Gotham Asset Management New York $43B AUM 34.97% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
VanEck Associates
VanEck Associates New York $164B AUM 112.45% 1-Year Est. Return

Dmitry Balyasny's IRDM Position: Q2 2026 in Review

Dmitry Balyasny increased its Iridium Communications (IRDM) stake by 683% in Q2 2026, buying an estimated $36.1M and bringing the position to 967,572 shares worth $53.1M. The position accounts for 0.07% of the portfolio, ranked #342.

Dmitry Balyasny first reported a position in IRDM in Q3 2014 and has held it in 18 quarters since. 478 funds tracked by Wall St. Rank hold IRDM as of Q2 2026.

  • Dmitry Balyasny held 967,572 shares of Iridium Communications worth $53.1M as of Q2 2026.
  • Dmitry Balyasny bought 844,017 Iridium Communications shares in Q2 2026, an estimated $36.1M.
  • Iridium Communications made up 0.07% of Dmitry Balyasny's portfolio in Q2 2026, its #342 holding.
  • Dmitry Balyasny first reported a position in Iridium Communications in Q3 2014 and has held it in 18 quarters since.
  • 478 funds tracked by Wall St. Rank held Iridium Communications as of Q2 2026.

Based on Balyasny Asset Management's 13F filing for Q2 2026, filed 14 Aug 2026.