SLARK MARTIN P
SEC insider (Form 3/4/5 filer). CIK 0001012930. Director at NORTHERN TRUST CORP (NTRS) and 1 other issuer. 17 reported Form 4/5 transactions since Sep 2024; latest on Oct 1, 2026. Located in CHICAGO, IL.
Companies SLARK MARTIN P has filed insider reports for
- NORTHERN TRUST CORP (NTRS): Director
- Hub Group, Inc. (HUBG): Director
SLARK MARTIN P
CIK: 0001012930
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (17 total)
- Oct 1, 2026NTRS
NORTHERN TRUST CORP
AwardDirect71 shares at avg. $169.20$12K - Jul 1, 2026NTRS
NORTHERN TRUST CORP
AwardDirect62 shares at avg. $175.60$11K - Apr 21, 2026NTRS
NORTHERN TRUST CORP
AwardDirect989 shares- - Apr 21, 2026NTRS
NORTHERN TRUST CORP
AwardDirect35 shares at avg. $171.74$6K - Apr 1, 2026NTRS
NORTHERN TRUST CORP
AwardDirect65 shares at avg. $141.41$9K - Jan 2, 2026HUBG
Hub Group, Inc.
AwardDirect4.7K shares- - Jan 2, 2026HUBG
Hub Group, Inc.
Tax PaymentDirect1.7K shares at avg. $42.75$72K - Jan 1, 2026NTRS
NORTHERN TRUST CORP
AwardDirect67 shares at avg. $136.59$9K - Oct 1, 2025NTRS
NORTHERN TRUST CORP
AwardDirect69 shares at avg. $131.20$9K - Jul 1, 2025NTRS
NORTHERN TRUST CORP
AwardDirect66 shares at avg. $127.99$8K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Oct 1, 2026 |  NTRS NORTHERN TRUST CORP | Award | 71 | $169.20 | $11,954 | Direct |
| Jul 1, 2026 | NTRS NORTHERN TRUST CORP | Award | 62 | $175.60 | $10,817 | Direct |
| Apr 21, 2026 | NTRS NORTHERN TRUST CORP | Award | 989 | - | $0 | Direct |
| Apr 21, 2026 | NTRS NORTHERN TRUST CORP | Award | 35 | $171.74 | $5,992 | Direct |
| Apr 1, 2026 | NTRS NORTHERN TRUST CORP | Award | 65 | $141.41 | $9,216 | Direct |
| Jan 2, 2026 |  HUBG Hub Group, Inc. | Award | 4,679 | - | $0 | Direct |
| Jan 2, 2026 | HUBG Hub Group, Inc. | Tax Payment | 1,695 | $42.75 | $72,461 | Direct |
| Jan 1, 2026 | NTRS NORTHERN TRUST CORP | Award | 67 | $136.59 | $9,162 | Direct |
| Oct 1, 2025 | NTRS NORTHERN TRUST CORP | Award | 69 | $131.20 | $9,107 | Direct |
| Jul 1, 2025 | NTRS NORTHERN TRUST CORP | Award | 66 | $127.99 | $8,488 | Direct |
1-10 of 17 transactions