ARK Investment Management’s Iridium Communications IRDM Stock Holding History

ARK Investment Management’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	$66.6M	Sell	1,215,113 -511,689	-30%	-$21.9M	0.43%	51
2026 Q1	$47.9M	Sell	1,726,802 -1,123,804	-39%	-$25.3M	0.37%	51
2025 Q4	$49.5M	Sell	2,850,606 -3,639,502	-56%	-$64.3M	0.33%	55
2025 Q3	$113M	Buy	6,490,108 +1,156,580	+22%	+$28.6M	0.67%	43
2025 Q2	$161M	Buy	5,333,528 +441,851	+9%	+$11.5M	1.18%	22
2025 Q1	$134M	Buy	4,891,677 +2,383,962	+95%	+$69.9M	1.34%	22
2024 Q4	$72.8M	Buy	2,507,715 +134,924	+6%	+$4.01M	0.61%	33
2024 Q3	$72.3M	Sell	2,372,791 -147,756	-6%	-$4.03M	0.66%	32
2024 Q2	$67.1M	Sell	2,520,547 -52,633	-2%	-$1.48M	0.6%	32
2024 Q1	$67.3M	Buy	2,573,180 +399,216	+18%	+$13M	0.47%	38
2023 Q4	$89.5M	Buy	2,173,964 +249,185	+13%	+$9.87M	0.53%	36
2023 Q3	$87.6M	Buy	1,924,779 +376,733	+24%	+$19.5M	0.67%	32
2023 Q2	$96.2M	Buy	1,548,046 +95,394	+7%	+$5.9M	0.64%	33
2023 Q1	$90M	Sell	1,452,652 -41,803	-3%	-$2.5M	0.62%	30
2022 Q4	$76.8M	Sell	1,494,455 -274,325	-16%	-$13.8M	0.67%	28
2022 Q3	$78.5M	Sell	1,768,780 -427,966	-19%	-$18.5M	0.55%	33
2022 Q2	$81.5M	Sell	2,196,746 -157,551	-7%	-$5.88M	0.48%	42
2022 Q1	$94.9M	Sell	2,354,297 -7,782,374	-77%	-$293M	0.4%	44
2021 Q4	$419M	Sell	10,136,671 -1,836,031	-15%	-$74.2M	1.27%	22
2021 Q3	$477M	Sell	11,972,702 -1,620,280	-12%	-$68M	1.15%	23
2021 Q2	$544M	Buy	13,592,982 +3,237,835	+31%	+$126M	1.01%	27
2021 Q1	$427M	Buy	10,355,147 +3,384,917	+49%	+$148M	0.85%	35
2020 Q4	$274M	Buy	6,970,230 +2,569,288	+58%	+$80.7M	0.73%	39
2020 Q3	$113M	Buy	4,400,942 +1,129,751	+35%	+$31.1M	0.67%	41
2020 Q2	$83.2M	Buy	3,271,191 +1,633,240	+100%	+$38.3M	0.9%	31
2020 Q1	$36.6M	Buy	1,637,951 +1,498,959	+1,078%	+$38.8M	0.91%	28
2019 Q4	$3.42M	Buy	138,992 +70,793	+104%	+$1.7M	0.09%	80
2019 Q3	$1.45M	Buy	+68,199	New	+$1.63M	0.03%	117

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

ARK Investment Management's IRDM Position: Q2 2026 in Review

ARK Investment Management reduced its Iridium Communications (IRDM) stake by 30% in Q2 2026, selling an estimated $21.9M and leaving 1,215,113 shares worth $66.6M. The position accounts for 0.43% of the portfolio, ranked #51.

ARK Investment Management first reported a position in IRDM in Q3 2019 and has held it in 28 quarters since. The position peaked at $544M in Q2 2021. 481 funds tracked by Wall St. Rank hold IRDM as of Q2 2026.

ARK Investment Management held 1,215,113 shares of Iridium Communications worth $66.6M as of Q2 2026.
ARK Investment Management sold 511,689 Iridium Communications shares in Q2 2026, an estimated $21.9M.
Iridium Communications made up 0.43% of ARK Investment Management's portfolio in Q2 2026, its #51 holding.
ARK Investment Management first reported a position in Iridium Communications in Q3 2019 and has held it in 28 quarters since.
ARK Investment Management's Iridium Communications position peaked at $544M in Q2 2021.
481 funds tracked by Wall St. Rank held Iridium Communications as of Q2 2026.

Based on ARK Investment Management's 13F filing for Q2 2026, filed 14 Aug 2026.