Martin P. Slark

CIK: 0001012930

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)15 (88.2%)

Compensation grants

Other (G, F, J, C, D, …)2 (11.8%)

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

Companies & Roles (2)

NTRS

NORTHERN TRUST CORP

Director

HUBG

Hub Group, Inc.

Director

Discretionary Trading P&L

Holdings

Transaction History (17 total)

NTRS
NORTHERN TRUST CORP
Oct 1, 2026
Award(A)
Direct
71 shares at avg. $169.20$12K
NTRS
NORTHERN TRUST CORP
Jul 1, 2026
Award(A)
Direct
62 shares at avg. $175.60$11K
NTRS
NORTHERN TRUST CORP
Apr 21, 2026
Award(A)
Direct
989 shares-
NTRS
NORTHERN TRUST CORP
Apr 21, 2026
Award(A)
Direct
35 shares at avg. $171.74$6K
NTRS
NORTHERN TRUST CORP
Apr 1, 2026
Award(A)
Direct
65 shares at avg. $141.41$9K
HUBG
Hub Group, Inc.
Jan 2, 2026
Award(A)
Direct
4.7K shares-
HUBG
Hub Group, Inc.
Jan 2, 2026
Tax Payment(F)
Direct
1.7K shares at avg. $42.75$72K
NTRS
NORTHERN TRUST CORP
Jan 1, 2026
Award(A)
Direct
67 shares at avg. $136.59$9K
NTRS
NORTHERN TRUST CORP
Oct 1, 2025
Award(A)
Direct
69 shares at avg. $131.20$9K
NTRS
NORTHERN TRUST CORP
Jul 1, 2025
Award(A)
Direct
66 shares at avg. $127.99$8K
NTRS
NORTHERN TRUST CORP
Apr 22, 2025
Award(A)
Direct
61 shares at avg. $89.36$5K
NTRS
NORTHERN TRUST CORP
Apr 22, 2025
Award(A)
Direct
1.9K shares-
NTRS
NORTHERN TRUST CORP
Apr 1, 2025
Award(A)
Direct
72 shares at avg. $97.95$7K
HUBG
Hub Group, Inc.
Jan 3, 2025
Tax Payment(F)
Direct
1.6K shares at avg. $44.17$70K
HUBG
Hub Group, Inc.
Jan 3, 2025
Award(A)
Direct
4.5K shares-
NTRS
NORTHERN TRUST CORP
Jan 1, 2025
Award(A)
Direct
68 shares at avg. $102.50$7K
NTRS
NORTHERN TRUST CORP
Oct 1, 2024
Award(A)
Direct
78 shares at avg. $88.72$7K

		Type	Shares	Price		Ownership
Oct 1, 2026	NTRS NORTHERN TRUST CORP	Award(A)	71	$169.20	$11,954	Direct
Jul 1, 2026	NTRS NORTHERN TRUST CORP	Award(A)	62	$175.60	$10,817	Direct
Apr 21, 2026	NTRS NORTHERN TRUST CORP	Award(A)	989	-	$0	Direct
Apr 21, 2026	NTRS NORTHERN TRUST CORP	Award(A)	35	$171.74	$5,992	Direct
Apr 1, 2026	NTRS NORTHERN TRUST CORP	Award(A)	65	$141.41	$9,216	Direct
Jan 2, 2026	HUBG Hub Group, Inc.	Award(A)	4,679	-	$0	Direct
Jan 2, 2026	HUBG Hub Group, Inc.	Tax Payment(F)	1,695	$42.75	$72,461	Direct
Jan 1, 2026	NTRS NORTHERN TRUST CORP	Award(A)	67	$136.59	$9,162	Direct
Oct 1, 2025	NTRS NORTHERN TRUST CORP	Award(A)	69	$131.20	$9,107	Direct
Jul 1, 2025	NTRS NORTHERN TRUST CORP	Award(A)	66	$127.99	$8,488	Direct
Apr 22, 2025	NTRS NORTHERN TRUST CORP	Award(A)	61	$89.36	$5,466	Direct
Apr 22, 2025	NTRS NORTHERN TRUST CORP	Award(A)	1,902	-	-	Direct
Apr 1, 2025	NTRS NORTHERN TRUST CORP	Award(A)	72	$97.95	$7,022	Direct
Jan 3, 2025	HUBG Hub Group, Inc.	Tax Payment(F)	1,592	$44.17	$70,319	Direct
Jan 3, 2025	HUBG Hub Group, Inc.	Award(A)	4,528	-	$0	Direct
Jan 1, 2025	NTRS NORTHERN TRUST CORP	Award(A)	68	$102.50	$6,970	Direct
Oct 1, 2024	NTRS NORTHERN TRUST CORP	Award(A)	78	$88.72	$6,911	Direct

1-17 of 17 transactions

About SLARK MARTIN P

SLARK MARTIN P (SEC CIK 0001012930) files insider reports with the SEC as Director of NORTHERN TRUST CORP (NTRS) and Director of Hub Group, Inc. (HUBG).

Signal8 holds 12 ownership filings by SLARK MARTIN P, all Form 4s, filed between Oct 2, 2024 and Oct 2, 2026. Those filings report 17 transactions, from Oct 1, 2024 to Oct 1, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on SLARK MARTIN P's filings is in CHICAGO, IL.

Recent filings by SLARK MARTIN P

Oct 1, 2026: Grant or award of NTRS shares (Form 4, code A).
Jul 1, 2026: Grant or award of NTRS shares (Form 4, code A).
Apr 21, 2026: Grants or awards of NTRS shares (2 lines, Form 4, code A).
Apr 1, 2026: Grant or award of NTRS shares (Form 4, code A).
Jan 2, 2026: Grant or award of HUBG shares (Form 4, code A).

Other insiders filing for NORTHERN TRUST CORP (NTRS)

Moritz Robert Edward Jr., Director
SMITH DAVID BYRON JR, Director
Levy Susan Cohen, EVP and General Counsel
Qureshi Rima, Director
Taylor Alexandria, Chief Administrative Officer
Tribbett Charles A, Director

How to read Form 4 transaction codes