Mark L. Arnold

CIK: 0002054115

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)3 (60.0%)

Compensation grants

Other (G, F, J, C, D, …)2 (40.0%)

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

Companies & Roles (1)

APEI

AMERICAN PUBLIC EDUCATION INC

Officer

Discretionary Trading P&L

Holdings

Transaction History (5 total)

APEI
AMERICAN PUBLIC EDUCATION INC
Mar 10, 2026
Award(A)
Direct
10.5K shares-
APEI
AMERICAN PUBLIC EDUCATION INC
Mar 10, 2026
Tax Payment(F)
Direct
1.1K shares at avg. $45.51$49K
APEI
AMERICAN PUBLIC EDUCATION INC
Feb 2, 2026
Award(A)
Direct
4.6K shares-
APEI
AMERICAN PUBLIC EDUCATION INC
Jan 30, 2026
Tax Payment(F)
Direct
903 shares at avg. $41.78$38K
APEI
AMERICAN PUBLIC EDUCATION INC
Jan 30, 2025
Award(A)
Direct
7.5K shares-

		Type	Shares	Price		Ownership
Mar 10, 2026	APEI AMERICAN PUBLIC EDUCATION INC	Award(A)	10,492	-	$0	Direct
Mar 10, 2026	APEI AMERICAN PUBLIC EDUCATION INC	Tax Payment(F)	1,067	$45.51	$48,559	Direct
Feb 2, 2026	APEI AMERICAN PUBLIC EDUCATION INC	Award(A)	4,617	-	$0	Direct
Jan 30, 2026	APEI AMERICAN PUBLIC EDUCATION INC	Tax Payment(F)	903	$41.78	$37,727	Direct
Jan 30, 2025	APEI AMERICAN PUBLIC EDUCATION INC	Award(A)	7,537	-	-	Direct

1-5 of 5 transactions

About Arnold Mark L.

Arnold Mark L. (SEC CIK 0002054115) files insider reports with the SEC as President, Rasmussen of AMERICAN PUBLIC EDUCATION INC (APEI).

Signal8 holds 4 ownership filings by Arnold Mark L. (1 Form 3, 3 Form 4), filed between Jan 30, 2025 and Mar 12, 2026. Those filings report 5 transactions, from Jan 30, 2025 to Mar 10, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Arnold Mark L.'s filings is in CHARLES TOWN, WV.

Recent filings by Arnold Mark L.

Mar 10, 2026: Grant or award of APEI shares (Form 4, code A).
Mar 10, 2026: Tax withholding of APEI shares (Form 4, code F).
Feb 2, 2026: Grant or award of APEI shares (Form 4, code A).
Jan 30, 2026: Tax withholding of APEI shares (Form 4, code F).
Jan 30, 2025: Grant or award of APEI shares (Form 4, code A).

Other insiders filing for AMERICAN PUBLIC EDUCATION INC (APEI)

Goodman Shira, Director
Kenigsberg James, Chief Innov. & Tech Officer
Codispoti Edward H, EVP & Chief Financial Officer
Pianko Daniel S., Director
Fernandes Nuno S., President, APUS
Beckett Thomas, SVP, General Counsel

How to read Form 4 transaction codes