XTX Topco’s Iridium Communications IRDM Stock Holding History

XTX Topco’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	$5.49M	Buy	100,123 +33,424	+50%	+$1.43M	0.07%	339
2026 Q1	$1.85M	Buy	66,699 +9,588	+17%	+$216K	0.03%	898
2025 Q4	$993K	Sell	57,111 -50,723	-47%	-$896K	0.03%	1029
2025 Q3	$1.88M	Buy	+107,834	New	+$2.66M	0.1%	234
2025 Q2	–	Sell	-57,742	Closed	-$1.58M	–	2755
2025 Q1	$1.58M	Buy	57,742 +36,108	+167%	+$1.06M	0.08%	337
2024 Q4	$628K	Sell	21,634 -7,014	-24%	-$209K	0.05%	576
2024 Q3	$872K	Buy	28,648 +19,263	+205%	+$525K	0.06%	484
2024 Q2	$250K	Sell	9,385 -7,110	-43%	-$200K	0.02%	1081
2024 Q1	$432K	Buy	+16,495	New	+$537K	0.06%	579
2023 Q4	–	Sell	-11,578	Closed	-$527K	–	1836
2023 Q3	$527K	Buy	11,578 +6,691	+137%	+$347K	0.09%	374
2023 Q2	$304K	Buy	+4,887	New	+$302K	0.05%	712
2021 Q3	–	Sell	-5,322	Closed	-$213K	–	857
2021 Q2	$213K	Buy	+5,322	New	+$207K	0.07%	537

Other funds holding IRDM

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

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 Austin, Texas $552B AUM 44.19% 1-Year Est. Return

VanEck Associates New York $164B AUM 112.45% 1-Year Est. Return

XTX Topco's IRDM Position: Q2 2026 in Review

XTX Topco increased its Iridium Communications (IRDM) stake by 50% in Q2 2026, buying an estimated $1.43M and bringing the position to 100,123 shares worth $5.49M. The position accounts for 0.07% of the portfolio, ranked #339.

XTX Topco first reported a position in IRDM in Q2 2021 and has held it in 12 quarters since. 481 funds tracked by Wall St. Rank hold IRDM as of Q2 2026.

XTX Topco held 100,123 shares of Iridium Communications worth $5.49M as of Q2 2026.
XTX Topco bought 33,424 Iridium Communications shares in Q2 2026, an estimated $1.43M.
Iridium Communications made up 0.07% of XTX Topco's portfolio in Q2 2026, its #339 holding.
XTX Topco first reported a position in Iridium Communications in Q2 2021 and has held it in 12 quarters since.
481 funds tracked by Wall St. Rank held Iridium Communications as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.