Aaron P. Diefenthaler - 25 Nov 2025 Form 4 Insider Report for RLI CORP (RLI)

Role
TREASURER, CHIEF INVEST. OFF.
Signature
/s/ Aaron P. Diefenthaler
Issuer symbol
RLI
Transactions as of
25 Nov 2025
Net transactions value
-$286,061
Form type
4
Filing time
26 Nov 2025, 16:15:07 UTC
Previous filing
15 May 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Diefenthaler Aaron Paul TREASURER, CHIEF INVEST. OFF. 9025 N. LINDBERGH DRIVE, PEORIA /s/ Aaron P. Diefenthaler 26 Nov 2025 0001540227

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction RLI Common Stock Options Exercise $505,260 +18,000 +27% $28.07 84,139 25 Nov 2025 Direct F1, F2
transaction RLI Common Stock Tax liability $791,321 -12,376 -15% $63.94 71,763 25 Nov 2025 Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction RLI Stock Option Options Exercise $0 -18,000 -100% $0.000000 0 25 Nov 2025 Common Stock 18,000 $28.07 Direct F3, F4, F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Adjusted to reflect 2-for-1 stock split on 01/15/25.
F2 Ownership reflects dividend reinvestment.
F3 Stock option grant price adjusted to reflect $7.00 extraordinary dividend declared 11-10-2022.
F4 Stock option grant price and number of stock options adjusted to reflect 2-for-1 stock split on 01/15/25.
F5 Pursuant to option schedule wherein 20% of the aggregate number of shares granted may be exercised commencing one year from grant date and each year thereafter in 20% increments.