Robert H. Niehaus

CIK: 0001241677

Transaction Breakdown

Open Market Buys (P)2 (8.7%)

High conviction signal

Open Market Sales (S)1 (4.3%)

Position reduction

Option Exercises (M)1 (4.3%)

Derivative conversions

Awards (A)14 (60.9%)

Compensation grants

Other (G, F, J, C, D, …)5 (21.7%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (2)

IRDM

Iridium Communications Inc.

Director

ZETA

Zeta Global Holdings Corp.

Director

Discretionary Trading P&L

Holdings

Transaction History (23 total)

IRDM
Iridium Communications Inc.
Sep 30, 2026
Award(A)
Direct
56 shares-
IRDM
Iridium Communications Inc.
Aug 17, 2026
Gift(G)
Direct
50K shares-
ZETA
Zeta Global Holdings Corp.
Jul 1, 2026
Award(A)
Direct
7.2K shares-
IRDM
Iridium Communications Inc.
Jun 30, 2026
Award(A)
Direct
378 shares-
ZETA
Zeta Global Holdings Corp.
May 7, 2026
Gift(G)
Indirect
60K shares-
ZETA
Zeta Global Holdings Corp.
May 7, 2026
Gift(G)
Direct
60K shares-
IRDM
Iridium Communications Inc.
Mar 31, 2026
Award(A)
Direct
743 shares-
IRDM
Iridium Communications Inc.
Jan 6, 2026
Award(A)
Direct
17.3K shares-
IRDM
Iridium Communications Inc.
Dec 31, 2025
Award(A)
Direct
1.1K shares-
ZETA
Zeta Global Holdings Corp.
Nov 12, 2025
Other(J)
Direct
346.1K shares-
IRDM
Iridium Communications Inc.
Oct 28, 2025
Purchase(P)
Direct
30K shares at avg. $17.49$525K
IRDM
Iridium Communications Inc.
Sep 30, 2025
Award(A)
Direct
1.1K shares-
ZETA
Zeta Global Holdings Corp.
Jul 1, 2025
Award(A)
Direct
9.9K shares-
IRDM
Iridium Communications Inc.
Jun 30, 2025
Award(A)
Direct
590 shares-
IRDM
Iridium Communications Inc.
Mar 31, 2025
Award(A)
Direct
648 shares-
IRDM
Iridium Communications Inc.
Jan 6, 2025
Award(A)
Direct
3K shares at avg. $30.15$90K
IRDM
Iridium Communications Inc.
Jan 6, 2025
Award(A)
Direct
6.6K shares-
IRDM
Iridium Communications Inc.
Dec 31, 2024
Award(A)
Direct
586 shares-
ZETA
Zeta Global Holdings Corp.
Nov 18, 2024
Purchase(P)
Direct
30K shares at avg. $18.62$559K
IRDM
Iridium Communications Inc.
Oct 23, 2024
Sale(S)
Direct
38.4K shares at avg. $29.39$1.1M
IRDM
Iridium Communications Inc.
Oct 23, 2024
Exercise(M)
Direct
38.4K shares at avg. $9.18$352K
IRDM
Iridium Communications Inc.
Sep 30, 2024
Award(A)
Direct
556 shares-
ZETA
Zeta Global Holdings Corp.
Aug 8, 2024
Other(J)
Direct
217.6K shares-

		Type	Shares	Price		Ownership
Sep 30, 2026	IRDM Iridium Communications Inc.	Award(A)	56	-	$0	Direct
Aug 17, 2026	IRDM Iridium Communications Inc.	Gift(G)	50,000	-	$0	Direct
Jul 1, 2026	ZETA Zeta Global Holdings Corp.	Award(A)	7,197	-	$0	Direct
Jun 30, 2026	IRDM Iridium Communications Inc.	Award(A)	378	-	$0	Direct
May 7, 2026	ZETA Zeta Global Holdings Corp.	Gift(G)	60,000	-	$0	Indirect
May 7, 2026	ZETA Zeta Global Holdings Corp.	Gift(G)	60,000	-	$0	Direct
Mar 31, 2026	IRDM Iridium Communications Inc.	Award(A)	743	-	$0	Direct
Jan 6, 2026	IRDM Iridium Communications Inc.	Award(A)	17,315	-	$0	Direct
Dec 31, 2025	IRDM Iridium Communications Inc.	Award(A)	1,112	-	$0	Direct
Nov 12, 2025	ZETA Zeta Global Holdings Corp.	Other(J)	346,110	-	$0	Direct
Oct 28, 2025	IRDM Iridium Communications Inc.	Purchase(P)	30,000	$17.49	$524,700	Direct
Sep 30, 2025	IRDM Iridium Communications Inc.	Award(A)	1,097	-	-	Direct
Jul 1, 2025	ZETA Zeta Global Holdings Corp.	Award(A)	9,907	-	-	Direct
Jun 30, 2025	IRDM Iridium Communications Inc.	Award(A)	590	-	-	Direct
Mar 31, 2025	IRDM Iridium Communications Inc.	Award(A)	648	-	-	Direct
Jan 6, 2025	IRDM Iridium Communications Inc.	Award(A)	2,984	$30.15	$89,968	Direct
Jan 6, 2025	IRDM Iridium Communications Inc.	Award(A)	6,633	-	$0	Direct
Dec 31, 2024	IRDM Iridium Communications Inc.	Award(A)	586	-	$0	Direct
Nov 18, 2024	ZETA Zeta Global Holdings Corp.	Purchase(P)	30,000	$18.62	$558,600	Direct
Oct 23, 2024	IRDM Iridium Communications Inc.	Sale(S)	38,355	$29.39	$1,127,253	Direct
Oct 23, 2024	IRDM Iridium Communications Inc.	Exercise(M)	38,355	$9.18	$352,099	Direct
Sep 30, 2024	IRDM Iridium Communications Inc.	Award(A)	556	-	$0	Direct
Aug 8, 2024	ZETA Zeta Global Holdings Corp.	Other(J)	217,625	-	$0	Direct

1-23 of 23 transactions

About NIEHAUS ROBERT H

NIEHAUS ROBERT H (SEC CIK 0001241677) files insider reports with the SEC as Director of Iridium Communications Inc. (IRDM) and Director of Zeta Global Holdings Corp. (ZETA).

Signal8 holds 18 ownership filings by NIEHAUS ROBERT H, all Form 4s, filed between Oct 2, 2024 and Oct 2, 2026. Those filings report 23 transactions, from Aug 8, 2024 to Sep 30, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on NIEHAUS ROBERT H's filings is in MCLEAN, VA.

Recent filings by NIEHAUS ROBERT H

Sep 30, 2026: Grant or award of IRDM shares (Form 4, code A).
Aug 17, 2026: Gift of IRDM shares (Form 4, code G).
Jul 1, 2026: Grant or award of ZETA shares (Form 4, code A).
Jun 30, 2026: Grant or award of IRDM shares (Form 4, code A).
May 7, 2026: Gifts of ZETA shares (2 lines, Form 4, code G).

Other insiders filing for Iridium Communications Inc. (IRDM)

DESCH MATTHEW J, Chief Executive Officer
FRAZIER LEON ANTHONY, Director
YEANEY JACQUELINE E, Director
Sears Kay, Director
Alterman Louis M, Director
Shivanandan Monique S., Director

How to read Form 4 transaction codes