Northern Trust Director Martin P. Slark Receives Stock Units

Insider Transaction Overview

On October 1, 2026, Martin P. Slark, a Director of Northern Trust Corp ($NTRS), was granted 70.65 shares (stock units) of Common Stock at an implied price of $169.20 per share, amounting to an aggregate value of $11,954.00.

Transaction Breakdown

• Date of Transaction: October 1, 2026
• Transaction Code: A (Grant, award, or other acquisition pursuant to Rule 16b-3)
• Security: Common Stock (stock units payable 1-for-1 into common stock)
• Shares Acquired: 70.65
• Price Per Share: $169.20
• Total Transaction Value: $11,954.00
• Direct Holdings Post-Transaction: 22,467.72 shares
• Indirect Holdings: 4,769 shares held indirectly through a trust

Analysis & Significance

This transaction represents a routine quarterly or periodic equity retainer/fee grant for board service, as indicated by transaction code A and footnote 1 stating the units represent stock units payable automatically on a 1-for-1 basis in shares of common stock. Given the small transaction size relative to the insider's total direct and indirect holdings (~27,236.72 shares combined) and its compensatory nature, this filing has Low market and trading significance.