QT
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Quantbot Technologies’s Iridium Communications IRDM Stock Holding History

Quantbot 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
2026
Q2 		$1.87M Buy
+34,169
New +$1.46M 0.07% 380
2025
Q4 		– Sell
-22,006
Closed -$384K – 1923
2025
Q3 		$384K Buy
+22,006
New +$544K 0.01% 1119
2025
Q1 		– Sell
-33,454
Closed -$971K – 1670
2024
Q4 		$971K Buy
33,454
+31,651
+1,755% +$941K 0.04% 633
2024
Q3 		$54.9K Sell
1,803
-36,537
-95% -$995K ﹤0.01% 1275
2024
Q2 		$1.02M Sell
38,340
-63,826
-62% -$1.8M 0.05% 536
2024
Q1 		$2.67M Buy
102,166
+99,138
+3,274% +$3.22M 0.15% 188
2023
Q4 		$125K Sell
3,028
-49,306
-94% -$1.95M 0.01% 1121
2023
Q3 		$2.38M Buy
52,334
+49,579
+1,800% +$2.57M 0.16% 190
2023
Q2 		$171K Sell
2,755
-7,368
-73% -$456K 0.01% 1016
2023
Q1 		$627K Buy
10,123
+7,088
+234% +$424K 0.04% 544
2022
Q4 		$156K Buy
+3,035
New +$152K 0.01% 992
2022
Q3 		– Sell
-15,215
Closed -$571K – 1821
2022
Q2 		$571K Buy
+15,215
New +$567K 0.05% 527
2020
Q3 		– Sell
-1,158
Closed -$29K – 1460
2020
Q2 		$29K Buy
+1,158
New +$27.2K ﹤0.01% 797
2015
Q4 		– Sell
-8,415
Closed -$51K – 1222
2015
Q3 		$51K Buy
+8,415
New +$61.1K 0.01% 910
2015
Q1 		– Sell
-7,799
Closed -$76K – 1193
2014
Q4 		$76K Buy
+7,799
New +$73K 0.02% 733
2014
Q2 		– Sell
-2,613
Closed -$19K – 1271
2014
Q1 		$19K Buy
+2,613
New +$17.5K ﹤0.01% 965

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

Quantbot Technologies's IRDM Position: Q2 2026 in Review

Quantbot Technologies opened a new position in Iridium Communications (IRDM) in Q2 2026: 34,169 shares worth $1.87M. The stake represents 0.07% of the portfolio and ranks #380 among its holdings. This is a return to the name: Quantbot Technologies previously reported a position in IRDM as recently as Q3 2025.

Quantbot Technologies first reported a position in IRDM in Q1 2014 and has held it in 16 quarters since. The position peaked at $2.67M in Q1 2024. 481 funds tracked by Wall St. Rank hold IRDM as of Q2 2026.

  • Quantbot Technologies held 34,169 shares of Iridium Communications worth $1.87M as of Q2 2026.
  • Iridium Communications was a new Quantbot Technologies position in Q2 2026.
  • Iridium Communications made up 0.07% of Quantbot Technologies's portfolio in Q2 2026, its #380 holding.
  • Quantbot Technologies first reported a position in Iridium Communications in Q1 2014 and has held it in 16 quarters since.
  • Quantbot Technologies's Iridium Communications position peaked at $2.67M in Q1 2024.
  • 481 funds tracked by Wall St. Rank held Iridium Communications as of Q2 2026.

Based on Quantbot Technologies's 13F filing for Q2 2026, filed 12 Aug 2026.