MF
IRDM icon

Magnetar Financial’s Iridium Communications IRDM Stock Holding History

Magnetar Financial’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 		$8.4M Buy
+153,186
New +$6.55M 0.08% 200
2024
Q3 		– Sell
-10,471
Closed -$279K – 610
2024
Q2 		$279K Buy
+10,471
New +$295K 0.01% 398
2024
Q1 		– Sell
-14,835
Closed -$611K – 437
2023
Q4 		$611K Buy
+14,835
New +$587K 0.02% 293
2021
Q2 		– Sell
-7,560
Closed -$312K – 1290
2021
Q1 		$312K Buy
+7,560
New +$331K ﹤0.01% 919

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

Magnetar Financial's IRDM Position: Q2 2026 in Review

Magnetar Financial opened a new position in Iridium Communications (IRDM) in Q2 2026: 153,186 shares worth $8.4M. The stake represents 0.08% of the portfolio and ranks #200 among its holdings. This is a return to the name: Magnetar Financial previously reported a position in IRDM as recently as Q2 2024.

Magnetar Financial first reported a position in IRDM in Q1 2021 and has held it in 4 quarters since. 483 funds tracked by Wall St. Rank hold IRDM as of Q2 2026.

  • Magnetar Financial held 153,186 shares of Iridium Communications worth $8.4M as of Q2 2026.
  • Iridium Communications was a new Magnetar Financial position in Q2 2026.
  • Iridium Communications made up 0.08% of Magnetar Financial's portfolio in Q2 2026, its #200 holding.
  • Magnetar Financial first reported a position in Iridium Communications in Q1 2021 and has held it in 4 quarters since.
  • 483 funds tracked by Wall St. Rank held Iridium Communications as of Q2 2026.

Based on Magnetar Financial's 13F filing for Q2 2026, filed 14 Aug 2026.