AI
IRDM icon

Atom Investors’s Iridium Communications IRDM Stock Holding History

Atom Investors’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
-20,035
Closed -$350K – 695
2025
Q3 		$350K Buy
20,035
+12,721
+174% +$314K 0.03% 416
2025
Q2 		$221K Buy
+7,314
New +$190K 0.02% 495
2023
Q3 		– Sell
-6,491
Closed -$403K – 469
2023
Q2 		$403K Buy
+6,491
New +$402K 0.15% 135

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

Atom Investors's IRDM Position: Q4 2025 in Review

Atom Investors sold out of Iridium Communications (IRDM) in Q4 2025, closing a stake of 20,035 shares — an estimated $350K sold.

Atom Investors first reported a position in IRDM in Q2 2023 and held it in 3 quarters. The position peaked at $403K in Q2 2023. 325 funds tracked by Wall St. Rank hold IRDM as of Q4 2025.

  • Atom Investors reported no remaining Iridium Communications position as of Q4 2025 after selling out during the quarter.
  • Atom Investors sold 20,035 Iridium Communications shares in Q4 2025, an estimated $350K.
  • Atom Investors first reported a position in Iridium Communications in Q2 2023 and held it in 3 quarters.
  • Atom Investors's Iridium Communications position peaked at $403K in Q2 2023.
  • 325 funds tracked by Wall St. Rank held Iridium Communications as of Q4 2025.

Based on Atom Investors's 13F filing for Q4 2025, filed 17 Feb 2026.