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Harbor Capital Advisors’s Iridium Communications IRDM Stock Holding History

Harbor Capital Advisors’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 		$1.12M Sell
20,479
-17,586
-46% -$752K 0.08% 331
2026
Q1 		$1.06M Buy
+38,065
New +$857K 0.09% 312

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 $3.38T AUM 44.17% 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

Harbor Capital Advisors's IRDM Position: Q2 2026 in Review

Harbor Capital Advisors reduced its Iridium Communications (IRDM) stake by 46% in Q2 2026, selling an estimated $752K and leaving 20,479 shares worth $1.12M. The position accounts for 0.08% of the portfolio, ranked #331.

Harbor Capital Advisors first reported a position in IRDM in Q1 2026 and has held it in 2 quarters since. 484 funds tracked by Wall St. Rank hold IRDM as of Q2 2026.

  • Harbor Capital Advisors held 20,479 shares of Iridium Communications worth $1.12M as of Q2 2026.
  • Harbor Capital Advisors sold 17,586 Iridium Communications shares in Q2 2026, an estimated $752K.
  • Iridium Communications made up 0.08% of Harbor Capital Advisors's portfolio in Q2 2026, its #331 holding.
  • Harbor Capital Advisors first reported a position in Iridium Communications in Q1 2026 and has held it in 2 quarters since.
  • 484 funds tracked by Wall St. Rank held Iridium Communications as of Q2 2026.

Based on Harbor Capital Advisors's 13F filing for Q2 2026, filed 7 Aug 2026.