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Entropy Technologies’s Iridium Communications IRDM Stock Holding History

Entropy Technologies’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
-40,276
Closed -$703K – 1021
2025
Q3 		$703K Buy
40,276
+24,083
+149% +$595K 0.05% 422
2025
Q2 		$489K Buy
16,193
+7,509
+86% +$195K 0.04% 490
2025
Q1 		$237K Buy
+8,684
New +$254K 0.02% 596
2024
Q2 		– Sell
-21,953
Closed -$574K – 809
2024
Q1 		$574K Buy
21,953
+16,457
+299% +$535K 0.06% 409
2023
Q4 		$226K Buy
+5,496
New +$218K 0.04% 497

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

Entropy Technologies's IRDM Position: Q4 2025 in Review

Entropy Technologies sold out of Iridium Communications (IRDM) in Q4 2025, closing a stake of 40,276 shares — an estimated $703K sold.

Entropy Technologies first reported a position in IRDM in Q4 2023 and held it in 5 quarters. The position peaked at $703K in Q3 2025. 325 funds tracked by Wall St. Rank hold IRDM as of Q4 2025.

  • Entropy Technologies reported no remaining Iridium Communications position as of Q4 2025 after selling out during the quarter.
  • Entropy Technologies sold 40,276 Iridium Communications shares in Q4 2025, an estimated $703K.
  • Entropy Technologies first reported a position in Iridium Communications in Q4 2023 and held it in 5 quarters.
  • Entropy Technologies's Iridium Communications position peaked at $703K in Q3 2025.
  • 325 funds tracked by Wall St. Rank held Iridium Communications as of Q4 2025.

Based on Entropy Technologies's 13F filing for Q4 2025, filed 13 Feb 2026.