Dietmar Ostermann

CIK: 0001179705

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)15 (65.2%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)2 (8.7%)

Compensation grants

Other (G, F, J, C, D, …)6 (26.1%)

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

Companies & Roles (1)

XOS

Xos, Inc.

Director

Discretionary Trading P&L

Holdings

Transaction History (23 total)

XOS
Xos, Inc.
Sep 17, 2026
Sale(S)
Direct
4.7K shares at avg. $2.55$12K
XOS
Xos, Inc.
Sep 16, 2026
Sale(S)
Direct
262 shares at avg. $2.54$665.48
XOS
Xos, Inc.
Sep 4, 2026
Sale(S)
Direct
5K shares at avg. $3.00$15K
XOS
Xos, Inc.
Sep 2, 2026
Sale(S)
Direct
10K shares at avg. $3.02$30K
XOS
Xos, Inc.
Aug 20, 2026
Sale(S)
Direct
10K shares at avg. $3.49$35K
XOS
Xos, Inc.
Jul 17, 2026
Sale(S)
Direct
4.2K shares at avg. $2.15$9K
XOS
Xos, Inc.
Jul 17, 2026
Disposition(D)
Direct
4.2K shares at avg. $2.15$9K
XOS
Xos, Inc.
Jul 16, 2026
Sale(S)
Direct
4.2K shares at avg. $2.16$9K
XOS
Xos, Inc.
Jul 16, 2026
Disposition(D)
Direct
4.2K shares at avg. $2.16$9K
XOS
Xos, Inc.
Jul 15, 2026
Sale(S)
Direct
4.2K shares at avg. $2.30$10K
XOS
Xos, Inc.
Jul 15, 2026
Disposition(D)
Direct
4.2K shares at avg. $2.30$10K
XOS
Xos, Inc.
Jul 14, 2026
Sale(S)
Direct
4.2K shares at avg. $2.39$10K
XOS
Xos, Inc.
Jul 14, 2026
Disposition(D)
Direct
4.2K shares at avg. $2.39$10K
XOS
Xos, Inc.
Jul 13, 2026
Sale(S)
Direct
4.2K shares at avg. $2.35$10K
XOS
Xos, Inc.
Jul 13, 2026
Disposition(D)
Direct
4.2K shares at avg. $2.35$10K
XOS
Xos, Inc.
Jul 10, 2026
Award(A)
Direct
60.6K shares-
XOS
Xos, Inc.
Jul 10, 2026
Sale(S)
Direct
4.2K shares at avg. $2.49$10K
XOS
Xos, Inc.
Jul 10, 2026
Disposition(D)
Direct
4.2K shares at avg. $2.49$10K
XOS
Xos, Inc.
Jun 8, 2026
Sale(S)
Direct
3.4K shares at avg. $4.45$15K
XOS
Xos, Inc.
Dec 22, 2025
Sale(S)
Direct
3.8K shares at avg. $2.14$8K
XOS
Xos, Inc.
Dec 19, 2025
Sale(S)
Direct
3.8K shares at avg. $2.04$8K
XOS
Xos, Inc.
Dec 18, 2025
Sale(S)
Direct
3.8K shares at avg. $2.05$8K
XOS
Xos, Inc.
Jul 10, 2025
Award(A)
Direct
62.4K shares-

		Type	Shares	Price		Ownership
Sep 17, 2026	XOS Xos, Inc.	Sale(S)	4,738	$2.55	$12,082	Direct
Sep 16, 2026	XOS Xos, Inc.	Sale(S)	262	$2.54	$665	Direct
Sep 4, 2026	XOS Xos, Inc.	Sale(S)	5,000	$3.00	$15,000	Direct
Sep 2, 2026	XOS Xos, Inc.	Sale(S)	10,000	$3.02	$30,220	Direct
Aug 20, 2026	XOS Xos, Inc.	Sale(S)	10,000	$3.49	$34,913	Direct
Jul 17, 2026	XOS Xos, Inc.	Sale(S)	4,159	$2.15	$8,936	Direct
Jul 17, 2026	XOS Xos, Inc.	Disposition(D)	4,159	$2.15	$8,936	Direct
Jul 16, 2026	XOS Xos, Inc.	Sale(S)	4,158	$2.16	$8,984	Direct
Jul 16, 2026	XOS Xos, Inc.	Disposition(D)	4,158	$2.16	$8,984	Direct
Jul 15, 2026	XOS Xos, Inc.	Sale(S)	4,159	$2.30	$9,576	Direct
Jul 15, 2026	XOS Xos, Inc.	Disposition(D)	4,159	$2.30	$9,576	Direct
Jul 14, 2026	XOS Xos, Inc.	Sale(S)	4,158	$2.39	$9,943	Direct
Jul 14, 2026	XOS Xos, Inc.	Disposition(D)	4,158	$2.39	$9,943	Direct
Jul 13, 2026	XOS Xos, Inc.	Sale(S)	4,159	$2.35	$9,756	Direct
Jul 13, 2026	XOS Xos, Inc.	Disposition(D)	4,159	$2.35	$9,756	Direct
Jul 10, 2026	XOS Xos, Inc.	Award(A)	60,584	-	$0	Direct
Jul 10, 2026	XOS Xos, Inc.	Sale(S)	4,158	$2.49	$10,369	Direct
Jul 10, 2026	XOS Xos, Inc.	Disposition(D)	4,158	$2.49	$10,369	Direct
Jun 8, 2026	XOS Xos, Inc.	Sale(S)	3,351	$4.45	$14,916	Direct
Dec 22, 2025	XOS Xos, Inc.	Sale(S)	3,826	$2.14	$8,184	Direct
Dec 19, 2025	XOS Xos, Inc.	Sale(S)	3,826	$2.04	$7,790	Direct
Dec 18, 2025	XOS Xos, Inc.	Sale(S)	3,826	$2.05	$7,854	Direct
Jul 10, 2025	XOS Xos, Inc.	Award(A)	62,377	-	-	Direct

1-23 of 23 transactions

About OSTERMANN DIETMAR

OSTERMANN DIETMAR (SEC CIK 0001179705) files insider reports with the SEC as Director of Xos, Inc. (XOS).

Signal8 holds 10 ownership filings by OSTERMANN DIETMAR, all Form 4s, filed between Jul 14, 2025 and Sep 18, 2026. Those filings report 23 transactions, from Jul 10, 2025 to Sep 17, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on OSTERMANN DIETMAR's filings is in LOS ANGELES, CA.

Recent filings by OSTERMANN DIETMAR

Sep 17, 2026: Open-market sale of XOS shares (Form 4, code S).
Sep 16, 2026: Open-market sale of XOS shares (Form 4, code S).
Sep 4, 2026: Open-market sale of XOS shares (Form 4, code S).
Sep 2, 2026: Open-market sale of XOS shares (Form 4, code S).
Aug 20, 2026: Open-market sale of XOS shares (Form 4, code S).

Other insiders filing for Xos, Inc. (XOS)

Pogosyan Liana, Chief Financial Officer
Sordoni Giordano, Chief Operating Officer
Semler Dakota, Chief Executive Officer
RAPP EDWARD J, Director
Mattson George N, Director
Yake Alice, Director

How to read Form 4 transaction codes