SDIC
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South Dakota Investment Council’s Iridium Communications IRDM Stock Holding History

South Dakota Investment Council’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 		$1.15M Buy
+41,500
New +$934K 0.02% 397
2018
Q4 		– Sell
-71,048
Closed -$1.6M – 611
2018
Q3 		$1.6M Sell
71,048
-100,615
-59% -$1.95M 0.03% 346
2018
Q2 		$2.76M Hold
171,663
– – 0.06% 248
2018
Q1 		$1.93M Hold
171,663
– – 0.04% 308
2017
Q4 		$2.03M Sell
171,663
-7,700
-4% -$89K 0.04% 304
2017
Q3 		$1.85M Buy
179,363
+31,163
+21% +$323K 0.04% 345
2017
Q2 		$1.64M Hold
148,200
– – 0.03% 354
2017
Q1 		$1.43M Buy
+148,200
New +$1.41M 0.03% 361

Other funds holding IRDM

BlackRock
BlackRock New York $5.7T 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