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
Q3 		$1.41M Sell
29,400
-55,200
-65% -$2.66M ﹤0.01% 5826
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

American Century Companies
American Century Companies Kansas City, Missouri $229B AUM 33.35% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
Silver Heights Capital Management
Silver Heights Capital Management Toronto, Ontario, Canada $277M AUM 90.96% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $765B AUM 28.39% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.84T AUM 33.86% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.27T AUM 50.62% 1-Year Est. Return
Nuveen
Nuveen Charlotte, North Carolina $420B AUM 34.97% 1-Year Est. Return

Jane Street's IRDM Position: Q3 2026 in Review

Jane Street increased its Iridium Communications (IRDM) stake by 6,530% in Q3 2026, buying an estimated $21.7M and bringing the position to 456,974 shares worth $21.9M. The position accounts for ﹤0.01% of the portfolio, ranked #2003.

Jane Street first reported a position in IRDM in Q2 2013 and has held it in 33 quarters since. 291 funds tracked by Wall St. Rank hold IRDM as of Q3 2026.

  • Jane Street held 456,974 shares of Iridium Communications worth $21.9M as of Q3 2026.
  • Jane Street bought 450,082 Iridium Communications shares in Q3 2026, an estimated $21.7M.
  • Iridium Communications made up ﹤0.01% of Jane Street's portfolio in Q3 2026, its #2003 holding.
  • Jane Street first reported a position in Iridium Communications in Q2 2013 and has held it in 33 quarters since.
  • 291 funds tracked by Wall St. Rank held Iridium Communications as of Q3 2026.

Based on Jane Street's 13F filing for Q3 2026, filed 12 Nov 2026.