ClusterSignal

Ticker Story

IRDM

Iridium Communications Inc.

38/ 100

2 independent mixed-direction signals · 34 days

2 of 8 signal types active in the last 90 days

Signal Timeline

Insider ClustersellAug 18, 2026

6 insiders, sell · $19.3M · Grade A

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13F Fund PositionbuyAug 14, 2026

Citadel Advisors — increase position (+334%) · $29.7M

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13F Fund PositionbuyAug 14, 2026

ARK Investment Management — increase position (+39%) · $66.6M

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13F Fund PositionsellAug 14, 2026

Point72 Asset Management — decrease position (-64%) · $1.6M

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13F Fund PositionbuyAug 13, 2026

Renaissance Technologies — new position · $33.4M

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Activist StakeAug 4, 2026

Baralonco Limited — 13D/A, 9.44% of Iridium Communications Inc.

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Activist StakeApr 29, 2026

Vanguard Portfolio Management — 13G, 5.81% of Iridium Communications Inc

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Activist StakeApr 2, 2026

Baralonco Limited — 13D/A, 9.53% of Iridium Communications Inc.

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Activist StakeMar 26, 2026

The Vanguard Group — 13G/A, 0% of Iridium Communications Inc

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Activist StakeMar 5, 2026

The Vanguard Group — 13G/A, 10.25% of Iridium Communications Inc

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Activist StakeFeb 13, 2026

Silver Heights Capital Management Inc — 13G/A, 5% of Iridium Communications Inc.

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Activist StakeFeb 13, 2026

Silver Heights Capital Management Inc — 13G, 5% of Iridium Communications Inc.

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Activist StakeJan 8, 2026

BlackRock, Inc. — 13G/A, 12.5% of IRIDIUM COMMUNICATIONS INC

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Activist StakeDec 5, 2025

ARK Investment Management LLC — 13G/A, 3.93% of Iridium Communications Inc.

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Activist StakeNov 26, 2025

Baralonco Limited — 13D/A, 9.96% of Iridium Communications Inc.

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Activist StakeNov 14, 2025

BAMCO INC /NY/ — 13G/A, 0.01% of Iridium Communications Inc.

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Activist StakeNov 4, 2025

ARK Investment Management LLC — 13G/A, 6.12% of Iridium Communications Inc.

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Insider ClustermixedOct 31, 2025

3 insiders, mixed · $1.4M · Grade C

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Activist StakeAug 14, 2025

BAMCO INC /NY/ — 13G/A, 7.16% of Iridium Communications Inc.

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⚠ Detection and context from official public sources — not financial advice, not a prediction.