Della Camera David 4

What Happened

• David Della Camera, Chief Financial Officer of First Interstate BancSystem, was granted 3,370 restricted stock units (RSUs) on June 1, 2026. The RSUs were awarded at $0.00 per share (no purchase price) and are reported as an award/grant.
• These RSUs will convert into shares only upon vesting; the award carries a vesting date of June 1, 2029, subject to the reporting person's continued employment through that date. The grant was reported on a Form 4 filed June 3, 2026.

Key Details

• Transaction date: 2026-06-01; reported on Form 4 filed 2026-06-03 (timely filing).
• Transaction type/code: Award/Grant (A); 3,370 RSUs @ $0.00; total reported value $0 (compensation award).
• Shares owned after transaction: Not specified in the filing.
• Footnote: RSUs are issuable upon vesting under the registrant's 2023 Equity and Incentive Plan and vest on June 1, 2029, contingent on continued employment (see footnote F1).
• No 10b5-1 plan, tax-withholding sale, or sale/transfer reported for this grant.

Context

• RSU grants are a form of compensation and align executive interests with shareholders over the vesting period; they are not an open-market purchase and do not necessarily signal immediate bullish trading by the insider.
• Because the shares are subject to multi-year vesting, the economic benefit depends on continued employment and future stock price at vesting.