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Summit Trail Advisors’s Iridium Communications IRDM Stock Holding History

Summit Trail 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
Q1 		$318K Sell
11,452
-1,381
-11% -$31.1K ﹤0.01% 1291
2025
Q4 		$223K Buy
12,833
+2,059
+19% +$36.4K ﹤0.01% 1255
2025
Q3 		$188K Buy
+10,774
New +$266K ﹤0.01% 1299
2018
Q3 		– Sell
-5,294
Closed -$85K – 364
2018
Q2 		$85K Buy
+5,294
New +$72K 0.03% 230
2018
Q1 		– Sell
-6,748
Closed -$83K – 1047
2017
Q4 		$83K Buy
+6,748
New +$78K 0.01% 679

Other funds holding IRDM

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
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
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

Summit Trail Advisors's IRDM Position: Q1 2026 in Review

Summit Trail Advisors reduced its Iridium Communications (IRDM) stake by 11% in Q1 2026, selling an estimated $31.1K and leaving 11,452 shares worth $318K. The position accounts for ﹤0.01% of the portfolio, ranked #1291.

Summit Trail Advisors first reported a position in IRDM in Q4 2017 and has held it in 5 quarters since. 379 funds tracked by Wall St. Rank hold IRDM as of Q1 2026.

  • Summit Trail Advisors held 11,452 shares of Iridium Communications worth $318K as of Q1 2026.
  • Summit Trail Advisors sold 1,381 Iridium Communications shares in Q1 2026, an estimated $31.1K.
  • Iridium Communications made up ﹤0.01% of Summit Trail Advisors's portfolio in Q1 2026, its #1291 holding.
  • Summit Trail Advisors first reported a position in Iridium Communications in Q4 2017 and has held it in 5 quarters since.
  • 379 funds tracked by Wall St. Rank held Iridium Communications as of Q1 2026.

Based on Summit Trail Advisors's 13F filing for Q1 2026, filed 12 May 2026.