Massachusetts Financial Services
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Massachusetts Financial Services’s Iridium Communications IRDM Stock Holding History

Massachusetts Financial Services’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 		$28M Buy
+509,978
New +$21.8M 0.01% 601
2019
Q4 		– Sell
-101,450
Closed -$2.16M – 819
2019
Q3 		$2.16M Buy
101,450
+11,320
+13% +$270K ﹤0.01% 714
2019
Q2 		$2.1M Buy
+90,130
New +$2.24M ﹤0.01% 724

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 $3.37T AUM 44.26% 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

Massachusetts Financial Services's IRDM Position: Q2 2026 in Review

Massachusetts Financial Services opened a new position in Iridium Communications (IRDM) in Q2 2026: 509,978 shares worth $28M. The stake represents 0.01% of the portfolio and ranks #601 among its holdings. This is a return to the name: Massachusetts Financial Services previously reported a position in IRDM as recently as Q3 2019.

Massachusetts Financial Services first reported a position in IRDM in Q2 2019 and has held it in 3 quarters since. 483 funds tracked by Wall St. Rank hold IRDM as of Q2 2026.

  • Massachusetts Financial Services held 509,978 shares of Iridium Communications worth $28M as of Q2 2026.
  • Iridium Communications was a new Massachusetts Financial Services position in Q2 2026.
  • Iridium Communications made up 0.01% of Massachusetts Financial Services's portfolio in Q2 2026, its #601 holding.
  • Massachusetts Financial Services first reported a position in Iridium Communications in Q2 2019 and has held it in 3 quarters since.
  • 483 funds tracked by Wall St. Rank held Iridium Communications as of Q2 2026.

Based on Massachusetts Financial Services's 13F filing for Q2 2026, filed 3 Aug 2026.