Millennium Management
IRDM icon

Millennium Management’s Iridium Communications IRDM Stock Holding History

Millennium 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
2021
Q2 		– Sell
-10,000
Closed -$413K – 6778
2021
Q1 		$413K Buy
+10,000
New +$438K ﹤0.01% 4980

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SHCM
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State Street
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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

Millennium Management's IRDM Position: Q1 2026 in Review

Millennium Management reduced its Iridium Communications (IRDM) stake by 52% in Q1 2026, selling an estimated $12.2M and leaving 494,662 shares worth $13.7M. The position accounts for 0.01% of the portfolio, ranked #1866.

Millennium Management first reported a position in IRDM in Q3 2013 and has held it in 31 quarters since. The position peaked at $75.3M in Q2 2023. 379 funds tracked by Wall St. Rank hold IRDM as of Q1 2026.

  • Millennium Management held 494,662 shares of Iridium Communications worth $13.7M as of Q1 2026.
  • Millennium Management sold 542,619 Iridium Communications shares in Q1 2026, an estimated $12.2M.
  • Iridium Communications made up 0.01% of Millennium Management's portfolio in Q1 2026, its #1866 holding.
  • Millennium Management first reported a position in Iridium Communications in Q3 2013 and has held it in 31 quarters since.
  • Millennium Management's Iridium Communications position peaked at $75.3M in Q2 2023.
  • 379 funds tracked by Wall St. Rank held Iridium Communications as of Q1 2026.

Based on Millennium Management's 13F filing for Q1 2026, filed 15 May 2026.