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Graham Capital Management’s Iridium Communications IRDM Stock Holding History

Graham Capital Management’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
2025
Q4 		– Sell
-41,369
Closed -$722K – 1404
2025
Q3 		$722K Buy
41,369
+5,100
+14% +$126K 0.01% 475
2025
Q2 		$1.09M Buy
36,269
+3,695
+11% +$96.1K 0.02% 559
2025
Q1 		$890K Buy
32,574
+9,121
+39% +$267K 0.02% 590
2024
Q4 		$681K Sell
23,453
-34,326
-59% -$1.02M 0.01% 621
2024
Q3 		$1.76M Buy
57,779
+25,650
+80% +$699K 0.03% 313
2024
Q2 		$855K Sell
32,129
-12,435
-28% -$350K 0.02% 448
2024
Q1 		$1.17M Buy
+44,564
New +$1.45M 0.02% 381
2023
Q3 		– Sell
-3,320
Closed -$206K – 1154
2023
Q2 		$206K Buy
+3,320
New +$205K 0.01% 808
2023
Q1 		– Sell
-11,074
Closed -$569K – 1189
2022
Q4 		$569K Buy
+11,074
New +$556K 0.02% 726
2022
Q3 		– Sell
-10,507
Closed -$394K – 1171
2022
Q2 		$394K Sell
10,507
-12,953
-55% -$483K 0.02% 747
2022
Q1 		$945K Buy
+23,460
New +$883K 0.03% 325

Other funds holding IRDM

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
SHCM
Silver Heights Capital Management Toronto, Ontario, Canada $324M AUM 55.4% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
AIM
ARK Investment Management St. Petersburg, Florida $15.4B AUM 50.29% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 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
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Graham Capital Management's IRDM Position: Q4 2025 in Review

Graham Capital Management sold out of Iridium Communications (IRDM) in Q4 2025, closing a stake of 41,369 shares — an estimated $722K sold.

Graham Capital Management first reported a position in IRDM in Q1 2022 and held it in 11 quarters. The position peaked at $1.76M in Q3 2024. 325 funds tracked by Wall St. Rank hold IRDM as of Q4 2025.

  • Graham Capital Management reported no remaining Iridium Communications position as of Q4 2025 after selling out during the quarter.
  • Graham Capital Management sold 41,369 Iridium Communications shares in Q4 2025, an estimated $722K.
  • Graham Capital Management first reported a position in Iridium Communications in Q1 2022 and held it in 11 quarters.
  • Graham Capital Management's Iridium Communications position peaked at $1.76M in Q3 2024.
  • 325 funds tracked by Wall St. Rank held Iridium Communications as of Q4 2025.

Based on Graham Capital Management's 13F filing for Q4 2025, filed 17 Feb 2026.