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Vanguard Personalized Indexing Management’s Iridium Communications IRDM Stock Holding History

Vanguard Personalized Indexing Management’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
Q3 		– Sell
-9,158
Closed -$276K – 2023
2025
Q2 		$276K Sell
9,158
-6,325
-41% -$164K ﹤0.01% 1481
2025
Q1 		$423K Buy
15,483
+1,659
+12% +$48.6K 0.01% 1191
2024
Q4 		$401K Sell
13,824
-852
-6% -$25.3K 0.01% 1214
2024
Q3 		$447K Sell
14,676
-6,338
-30% -$173K 0.01% 1148
2024
Q2 		$559K Buy
21,014
+10,509
+100% +$296K 0.01% 977
2024
Q1 		$275K Sell
10,505
-72
-0.7% -$2.34K 0.01% 1305
2023
Q4 		$435K Buy
10,577
+4,121
+64% +$163K 0.01% 1068
2023
Q3 		$294K Buy
6,456
+459
+8% +$23.8K 0.01% 1134
2023
Q2 		$373K Sell
5,997
-5,752
-49% -$356K 0.01% 1023
2023
Q1 		$728K Buy
11,749
+7,292
+164% +$436K 0.03% 693
2022
Q4 		$229K Buy
+4,457
New +$224K 0.01% 1085

Other funds holding IRDM

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
AIM
ARK Investment Management St. Petersburg, Florida $12.9B AUM 64.92% 1-Year Est. Return
SHCM
Silver Heights Capital Management Toronto, Ontario, Canada $260M AUM 6.93% 1-Year Est. Return
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $154B AUM 29.96% 1-Year Est. Return
NAMA
Nikko Asset Management Americas New York $7.07B AUM 50.91% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Vanguard Personalized Indexing Management's IRDM Position: Q3 2025 in Review

Vanguard Personalized Indexing Management sold out of Iridium Communications (IRDM) in Q3 2025, closing a stake of 9,158 shares — an estimated $276K sold.

Vanguard Personalized Indexing Management first reported a position in IRDM in Q4 2022 and held it in 11 quarters. The position peaked at $728K in Q1 2023. 324 funds tracked by Wall St. Rank hold IRDM as of Q3 2025.

  • Vanguard Personalized Indexing Management reported no remaining Iridium Communications position as of Q3 2025 after selling out during the quarter.
  • Vanguard Personalized Indexing Management sold 9,158 Iridium Communications shares in Q3 2025, an estimated $276K.
  • Vanguard Personalized Indexing Management first reported a position in Iridium Communications in Q4 2022 and held it in 11 quarters.
  • Vanguard Personalized Indexing Management's Iridium Communications position peaked at $728K in Q1 2023.
  • 324 funds tracked by Wall St. Rank held Iridium Communications as of Q3 2025.

Based on Vanguard Personalized Indexing Management's 13F filing for Q3 2025, filed 31 Oct 2025.