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Gilder Gagnon Howe & Co’s Iridium Communications IRDM Stock Holding History

Gilder Gagnon Howe & Co’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
Q1 		– Sell
-63,650
Closed -$1.11M – 265
2025
Q4 		$1.11M Sell
63,650
-122
-0.2% -$2.16K 0.01% 214
2025
Q3 		$1.11M Buy
+63,772
New +$1.58M 0.01% 214

Other funds holding IRDM

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
SHCM
Silver Heights Capital Management Toronto, Ontario, Canada $324M AUM 55.4% 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
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
GAM
Gotham Asset Management New York $43B AUM 34.97% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Gilder Gagnon Howe & Co's IRDM Position: Q1 2026 in Review

Gilder Gagnon Howe & Co sold out of Iridium Communications (IRDM) in Q1 2026, closing a stake of 63,650 shares — an estimated $1.11M sold.

Gilder Gagnon Howe & Co first reported a position in IRDM in Q3 2025 and held it in 2 quarters. The position peaked at $1.11M in Q3 2025. 382 funds tracked by Wall St. Rank hold IRDM as of Q1 2026.

  • Gilder Gagnon Howe & Co reported no remaining Iridium Communications position as of Q1 2026 after selling out during the quarter.
  • Gilder Gagnon Howe & Co sold 63,650 Iridium Communications shares in Q1 2026, an estimated $1.11M.
  • Gilder Gagnon Howe & Co first reported a position in Iridium Communications in Q3 2025 and held it in 2 quarters.
  • Gilder Gagnon Howe & Co's Iridium Communications position peaked at $1.11M in Q3 2025.
  • 382 funds tracked by Wall St. Rank held Iridium Communications as of Q1 2026.

Based on Gilder Gagnon Howe & Co's 13F filing for Q1 2026, filed 15 May 2026.