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Winton Group’s Iridium Communications IRDM Stock Holding History

Winton Group’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 		– Sell
-27,400
Closed -$760K – 1341
2026
Q1 		$760K Sell
27,400
-13,900
-34% -$313K 0.03% 608
2025
Q4 		$718K Buy
+41,300
New +$730K 0.02% 560
2025
Q1 		– Sell
-160,291
Closed -$4.65M – 732
2024
Q4 		$4.65M Buy
160,291
+10,775
+7% +$320K 0.31% 96
2024
Q3 		$4.55M Buy
+149,516
New +$4.07M 0.32% 88
2024
Q2 		– Sell
-33,722
Closed -$882K – 653
2024
Q1 		$882K Buy
33,722
+25,045
+289% +$815K 0.06% 338
2023
Q4 		$357K Buy
8,677
+398
+5% +$15.8K 0.03% 478
2023
Q3 		$377K Buy
8,279
+640
+8% +$33.1K 0.03% 436
2023
Q2 		$475K Sell
7,639
-15,073
-66% -$932K 0.04% 343
2023
Q1 		$1.41M Buy
22,712
+5,319
+31% +$318K 0.09% 314
2022
Q4 		$894K Buy
17,393
+10,094
+138% +$507K 0.06% 447
2022
Q3 		$324K Buy
+7,299
New +$316K 0.02% 772
2021
Q4 		– Sell
-9,354
Closed -$373K – 1203
2021
Q3 		$373K Sell
9,354
-1,379
-13% -$57.9K 0.02% 1004
2021
Q2 		$429K Buy
+10,733
New +$417K 0.02% 1000
2021
Q1 		– Sell
-6,238
Closed -$245K – 1411
2020
Q4 		$245K Buy
+6,238
New +$196K 0.02% 1118
2019
Q1 		– Sell
-10,271
Closed -$189K – 1126
2018
Q4 		$189K Sell
10,271
-9,842
-49% -$202K ﹤0.01% 818
2018
Q3 		$453K Buy
+20,113
New +$391K 0.01% 670
2018
Q2 		– Sell
-26,811
Closed -$302K – 1090
2018
Q1 		$302K Buy
+26,811
New +$321K 0.01% 976

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

Winton Group's IRDM Position: Q2 2026 in Review

Winton Group sold out of Iridium Communications (IRDM) in Q2 2026, closing a stake of 27,400 shares — an estimated $760K sold.

Winton Group first reported a position in IRDM in Q1 2018 and held it in 17 quarters. The position peaked at $4.65M in Q4 2024. 484 funds tracked by Wall St. Rank hold IRDM as of Q2 2026.

  • Winton Group reported no remaining Iridium Communications position as of Q2 2026 after selling out during the quarter.
  • Winton Group sold 27,400 Iridium Communications shares in Q2 2026, an estimated $760K.
  • Winton Group first reported a position in Iridium Communications in Q1 2018 and held it in 17 quarters.
  • Winton Group's Iridium Communications position peaked at $4.65M in Q4 2024.
  • 484 funds tracked by Wall St. Rank held Iridium Communications as of Q2 2026.

Based on Winton Group's 13F filing for Q2 2026, filed 7 Aug 2026.