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Two Sigma Securities’s Iridium Communications IRDM Stock Holding History

Two Sigma Securities’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
2022
Q2 		– Sell
-7,400
Closed -$298K – 2532
2022
Q1 		$298K Buy
+7,400
New +$279K 0.01% 1406

Other funds holding IRDM

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
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
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
AIM
ARK Investment Management St. Petersburg, Florida $12.9B AUM 64.92% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
GAM
Gotham Asset Management New York $32.7B AUM 27.65% 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

Two Sigma Securities's IRDM Position: Q4 2025 in Review

Two Sigma Securities sold out of Iridium Communications (IRDM) in Q4 2025, closing a stake of 16,794 shares — an estimated $293K sold.

Two Sigma Securities first reported a position in IRDM in Q4 2016 and held it in 6 quarters. The position peaked at $765K in Q3 2018. 325 funds tracked by Wall St. Rank hold IRDM as of Q4 2025.

  • Two Sigma Securities reported no remaining Iridium Communications position as of Q4 2025 after selling out during the quarter.
  • Two Sigma Securities sold 16,794 Iridium Communications shares in Q4 2025, an estimated $293K.
  • Two Sigma Securities first reported a position in Iridium Communications in Q4 2016 and held it in 6 quarters.
  • Two Sigma Securities's Iridium Communications position peaked at $765K in Q3 2018.
  • 325 funds tracked by Wall St. Rank held Iridium Communications as of Q4 2025.

Based on Two Sigma Securities's 13F filing for Q4 2025, filed 17 Feb 2026.