Twin Tree Management
IRDM icon

Twin Tree Management’s Iridium Communications IRDM Stock Holding History

Twin Tree 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
2026
Q2 		$218K Buy
+3,982
New +$170K ﹤0.01% 1182
2024
Q2 		– Sell
-217
Closed -$5.68K – 1497
2024
Q1 		$5.68K Buy
+217
New +$7.06K ﹤0.01% 1212
2022
Q2 		– Sell
-1,349
Closed -$54K – 1665
2022
Q1 		$54K Sell
1,349
-27,954
-95% -$1.05M ﹤0.01% 1522
2021
Q4 		$1.21M Sell
29,303
-15,402
-34% -$622K ﹤0.01% 1195
2021
Q3 		$1.78M Buy
+44,705
New +$1.88M ﹤0.01% 1056

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

Twin Tree Management's IRDM Position: Q2 2026 in Review

Twin Tree Management opened a new position in Iridium Communications (IRDM) in Q2 2026: 3,982 shares worth $218K. The stake represents ﹤0.01% of the portfolio and ranks #1182 among its holdings. This is a return to the name: Twin Tree Management previously reported a position in IRDM as recently as Q1 2024.

Twin Tree Management first reported a position in IRDM in Q3 2021 and has held it in 5 quarters since. The position peaked at $1.78M in Q3 2021. 483 funds tracked by Wall St. Rank hold IRDM as of Q2 2026.

  • Twin Tree Management held 3,982 shares of Iridium Communications worth $218K as of Q2 2026.
  • Iridium Communications was a new Twin Tree Management position in Q2 2026.
  • Iridium Communications made up ﹤0.01% of Twin Tree Management's portfolio in Q2 2026, its #1182 holding.
  • Twin Tree Management first reported a position in Iridium Communications in Q3 2021 and has held it in 5 quarters since.
  • Twin Tree Management's Iridium Communications position peaked at $1.78M in Q3 2021.
  • 483 funds tracked by Wall St. Rank held Iridium Communications as of Q2 2026.

Based on Twin Tree Management's 13F filing for Q2 2026, filed 12 Aug 2026.