HI
IRDM icon

Horizon Investments’s Iridium Communications IRDM Stock Holding History

Horizon Investments’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 		$855K Sell
15,584
-13,000
-45% -$556K 0.01% 787
2026
Q1 		$793K Sell
28,584
-6,752
-19% -$152K 0.01% 724
2025
Q4 		$614K Buy
35,336
+12,119
+52% +$214K 0.01% 791
2025
Q3 		$405K Buy
+23,217
New +$574K 0.01% 861

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 $3.38T AUM 44.17% 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

Horizon Investments's IRDM Position: Q2 2026 in Review

Horizon Investments reduced its Iridium Communications (IRDM) stake by 45% in Q2 2026, selling an estimated $556K and leaving 15,584 shares worth $855K. The position accounts for 0.01% of the portfolio, ranked #787.

Horizon Investments first reported a position in IRDM in Q3 2025 and has held it in 4 quarters since. 484 funds tracked by Wall St. Rank hold IRDM as of Q2 2026.

  • Horizon Investments held 15,584 shares of Iridium Communications worth $855K as of Q2 2026.
  • Horizon Investments sold 13,000 Iridium Communications shares in Q2 2026, an estimated $556K.
  • Iridium Communications made up 0.01% of Horizon Investments's portfolio in Q2 2026, its #787 holding.
  • Horizon Investments first reported a position in Iridium Communications in Q3 2025 and has held it in 4 quarters since.
  • 484 funds tracked by Wall St. Rank held Iridium Communications as of Q2 2026.

Based on Horizon Investments's 13F filing for Q2 2026, filed 13 Aug 2026.