IMC Chicago
IRDM icon

IMC Chicago’s Iridium Communications IRDM Stock Holding History

IMC Chicago’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
Q1 		$854K Sell
30,800
-10,100
-25% -$227K ﹤0.01% 3438
2025
Q4 		$711K Sell
40,900
-2,300
-5% -$40.6K ﹤0.01% 3238
2025
Q3 		$754K Buy
+43,200
New +$1.07M ﹤0.01% 2911
2025
Q1 		– Sell
-10,300
Closed -$299K – 3299
2024
Q4 		$299K Buy
+10,300
New +$306K ﹤0.01% 2983

Other funds holding IRDM

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
SHCM
Silver Heights Capital Management Toronto, Ontario, Canada $260M AUM 6.93% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
GAM
Gotham Asset Management New York $32.7B AUM 27.65% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

IMC Chicago's IRDM Position: Q1 2026 in Review

IMC Chicago sold out of Iridium Communications (IRDM) in Q1 2026, closing a stake of 63,051 shares — an estimated $1.42M sold.

IMC Chicago first reported a position in IRDM in Q3 2025 and held it in 2 quarters. The position peaked at $1.1M in Q4 2025. 379 funds tracked by Wall St. Rank hold IRDM as of Q1 2026.

  • IMC Chicago reported no remaining Iridium Communications position as of Q1 2026 after selling out during the quarter.
  • IMC Chicago sold 63,051 Iridium Communications shares in Q1 2026, an estimated $1.42M.
  • IMC Chicago first reported a position in Iridium Communications in Q3 2025 and held it in 2 quarters.
  • IMC Chicago's Iridium Communications position peaked at $1.1M in Q4 2025.
  • 379 funds tracked by Wall St. Rank held Iridium Communications as of Q1 2026.

Based on IMC Chicago's 13F filing for Q1 2026, filed 5 May 2026.