Arrowstreet Capital
IRDM icon

Arrowstreet Capital’s Iridium Communications IRDM Stock Holding History

Arrowstreet Capital’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
Q1 		$30.5M Sell
1,101,231
-54,236
-5% -$1.22M 0.02% 634
2025
Q4 		$20.1M Buy
1,155,467
+217,886
+23% +$3.85M 0.01% 734
2025
Q3 		$16.4M Buy
937,581
+560,010
+148% +$13.8M 0.01% 802
2025
Q2 		$11.4M Sell
377,571
-170,810
-31% -$4.44M 0.01% 862
2025
Q1 		$15M Buy
548,381
+117,645
+27% +$3.45M 0.01% 685
2024
Q4 		$12.5M Sell
430,736
-351,016
-45% -$10.4M 0.01% 754
2024
Q3 		$23.8M Buy
781,752
+165,198
+27% +$4.5M 0.02% 500
2024
Q2 		$16.4M Buy
+616,554
New +$17.4M 0.01% 520
2024
Q1 		– Sell
-13,267
Closed -$546K – 1706
2023
Q4 		$546K Sell
13,267
-240,432
-95% -$9.52M ﹤0.01% 1210
2023
Q3 		$11.5M Sell
253,699
-5,332
-2% -$276K 0.01% 490
2023
Q2 		$16.1M Buy
259,031
+99,421
+62% +$6.15M 0.02% 426
2023
Q1 		$9.88M Buy
+159,610
New +$9.55M 0.01% 552
2022
Q4 		– Sell
-4,727
Closed -$210K – 1396
2022
Q3 		$210K Buy
+4,727
New +$205K ﹤0.01% 1203
2021
Q4 		– Sell
-11,900
Closed -$474K – 1571
2021
Q3 		$474K Sell
11,900
-101,680
-90% -$4.27M ﹤0.01% 1427
2021
Q2 		$4.54M Sell
113,580
-348,915
-75% -$13.6M 0.01% 1101
2021
Q1 		$19.1M Buy
+462,495
New +$20.2M 0.03% 612
2018
Q2 		– Sell
-15,500
Closed -$174K – 1194
2018
Q1 		$174K Buy
+15,500
New +$186K ﹤0.01% 1065
2016
Q4 		– Sell
-26,300
Closed -$213K – 2078
2016
Q3 		$213K Buy
+26,300
New +$221K ﹤0.01% 1409
2015
Q3 		– Sell
-13,300
Closed -$121K – 1424
2015
Q2 		$121K Buy
+13,300
New +$137K ﹤0.01% 1145
2015
Q1 		– Sell
-40,400
Closed -$394K – 1107
2014
Q4 		$394K Buy
+40,400
New +$378K ﹤0.01% 1083
2013
Q4 		– Sell
-56,780
Closed -$391K – 1221
2013
Q3 		$391K Buy
+56,780
New +$425K ﹤0.01% 822

Other funds holding IRDM

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
SHCM
Silver Heights Capital Management Toronto, Ontario, Canada $260M AUM 6.93% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
GAM
Gotham Asset Management New York $32.7B AUM 27.65% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Arrowstreet Capital's IRDM Position: Q1 2026 in Review

Arrowstreet Capital reduced its Iridium Communications (IRDM) stake by 4.7% in Q1 2026, selling an estimated $1.22M and leaving 1,101,231 shares worth $30.5M. The position accounts for 0.02% of the portfolio, ranked #634.

Arrowstreet Capital first reported a position in IRDM in Q3 2013 and has held it in 21 quarters since. 380 funds tracked by Wall St. Rank hold IRDM as of Q1 2026.

  • Arrowstreet Capital held 1,101,231 shares of Iridium Communications worth $30.5M as of Q1 2026.
  • Arrowstreet Capital sold 54,236 Iridium Communications shares in Q1 2026, an estimated $1.22M.
  • Iridium Communications made up 0.02% of Arrowstreet Capital's portfolio in Q1 2026, its #634 holding.
  • Arrowstreet Capital first reported a position in Iridium Communications in Q3 2013 and has held it in 21 quarters since.
  • 380 funds tracked by Wall St. Rank held Iridium Communications as of Q1 2026.

Based on Arrowstreet Capital's 13F filing for Q1 2026, filed 14 May 2026.