Jane Street
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Jane Street’s Iridium Communications IRDM Stock Holding History

Jane Street’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 		$4.64M Buy
84,600
+42,400
+100% +$1.81M ﹤0.01% 3814
2026
Q1 		$1.17M Buy
42,200
+17,000
+67% +$383K ﹤0.01% 6181
2025
Q4 		$438K Sell
25,200
-1,100
-4% -$19.4K ﹤0.01% 8003
2025
Q3 		$459K Buy
+26,300
New +$650K ﹤0.01% 8046
2024
Q4 		– Sell
-14,100
Closed -$429K – 9980
2024
Q3 		$429K Sell
14,100
-10,800
-43% -$294K ﹤0.01% 7460
2024
Q2 		$663K Buy
+24,900
New +$701K ﹤0.01% 6557
2023
Q4 		– Sell
-5,200
Closed -$237K – 9493
2023
Q3 		$237K Buy
5,200
+100
+2% +$5.18K ﹤0.01% 7402
2023
Q2 		$317K Buy
+5,100
New +$315K ﹤0.01% 7038
2022
Q4 		– Sell
-10,400
Closed -$461K – 9601
2022
Q3 		$461K Buy
10,400
+4,100
+65% +$178K ﹤0.01% 6836
2022
Q2 		$237K Sell
6,300
-6,300
-50% -$235K ﹤0.01% 7958
2022
Q1 		$508K Buy
+12,600
New +$474K ﹤0.01% 7452
2021
Q4 		– Sell
-36,100
Closed -$1.44M – 10436
2021
Q3 		$1.44M Sell
36,100
-5,100
-12% -$214K ﹤0.01% 5166
2021
Q2 		$1.65M Sell
41,200
-20,400
-33% -$792K ﹤0.01% 4729
2021
Q1 		$2.54M Buy
61,600
+53,700
+680% +$2.35M ﹤0.01% 3569
2020
Q4 		$311K Sell
7,900
-2,800
-26% -$88K ﹤0.01% 6349
2020
Q3 		$274K Buy
+10,700
New +$294K ﹤0.01% 6018
2019
Q3 		– Sell
-10,000
Closed -$233K – 5411
2019
Q2 		$233K Sell
10,000
-140,000
-93% -$3.48M ﹤0.01% 4529
2019
Q1 		$3.97M Buy
+150,000
New +$3.23M 0.01% 1340

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

Jane Street's IRDM Position: Q2 2026 in Review

Jane Street opened a new position in Iridium Communications (IRDM) in Q2 2026: 6,892 shares worth $378K. The stake represents ﹤0.01% of the portfolio and ranks #8661 among its holdings. This is a return to the name: Jane Street previously reported a position in IRDM as recently as Q4 2025.

Jane Street first reported a position in IRDM in Q2 2013 and has held it in 32 quarters since. The position peaked at $18.1M in Q1 2021. 483 funds tracked by Wall St. Rank hold IRDM as of Q2 2026.

  • Jane Street held 6,892 shares of Iridium Communications worth $378K as of Q2 2026.
  • Iridium Communications was a new Jane Street position in Q2 2026.
  • Iridium Communications made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #8661 holding.
  • Jane Street first reported a position in Iridium Communications in Q2 2013 and has held it in 32 quarters since.
  • Jane Street's Iridium Communications position peaked at $18.1M in Q1 2021.
  • 483 funds tracked by Wall St. Rank held Iridium Communications as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.