MARTZ BRAD 4

4 · AMERICAN COASTAL INSURANCE Corp · Filed May 6, 2026

AI-generated summary of this filing

Updated May 6, 2026

American Coastal (ACIC) CEO Brad Martz Exercises Awards, Sells 22,589 Shares

What Happened

Brad Martz, President & CEO of American Coastal Insurance Corp (ACIC), exercised/converted equity awards on May 4, 2026, resulting in the acquisition of 56,464 shares. To cover tax and exercise obligations, 22,589 shares were disposed/withheld at $11.65 each, generating $263,162 in proceeds. Additional disposals totaling 42,348 shares (various transfer/withholding events) were reported, many of which show $0.00 per-share reported value as they represent award conversions or internal withholding transfers rather than open-market sales.
Overall reported activity on that date: 56,464 shares acquired and 64,937 shares disposed. The only cash proceeds explicitly reported were $263,162 from the 22,589-share withholding/sale at $11.65 per share.

Key Details

Transaction date: 2026-05-04; Form 4 filed: 2026-05-06 (timely).
Reported trades/prices: 22,589 shares disposed at $11.65 (F — tax withholding/payment); other disposals include 12,702; 25,404; 878; 1,756; 536; 1,072 shares with reported per-share values of $0.00, $11.31, or $11.85 depending on the line item; 56,464 shares acquired at $0.00 (M — exercise/conversion).
Shares owned after transaction: not specified in this filing.
Codes explained: M = exercise/conversion of derivative awards; F = shares withheld/disposed to pay exercise price or tax liability.
Footnotes summary: Awards include restricted stock units and performance units that vest over three years (1/3 each period); performance-unit payouts can range 0%–150% based on results; dividend-equivalent units vest with the related units (see F1–F6).

Context

This appears to be an award exercise/settlement with routine withholding to cover taxes/exercise costs (common for RSUs/options). The filing indicates conversions/exercises rather than open-market purchases; only a portion (22,589 shares) produced cash proceeds for tax/payment. No indication of a 10b5-1 plan or gift; no late filing noted.

Form 4

Period: 2026-05-04

President & CEO

Transactions

Exercise/Conversion
Common Stock
2026-05-04+56,464→ 437,945 total
Tax Payment
Common Stock
2026-05-04$11.65/sh−22,589$263,162→ 415,356 total
Exercise/Conversion
Restricted Stock Unites
[F1][F2]
2026-05-04−12,702→ 28,399 total
→ Common Stock (12,702 underlying)
Exercise/Conversion
Performance Stock Units
[F1][F3][F4]
2026-05-04−25,404→ 56,793 total
→ Common Stock (25,404 underlying)
Exercise/Conversion
Dividend Equivalent Units
[F1][F5]
2026-05-04$11.31/sh−878$9,930→ 1,900 total
→ Common Stock (878 underlying)
Exercise/Conversion
Dividend Equivalent Units
[F1][F6]
2026-05-04$11.31/sh−1,756$19,860→ 3,798 total
→ Common Stock (1,756 underlying)
Exercise/Conversion
Dividend Equivalent Units
[F1][F5]
2026-05-04$11.85/sh−536$6,352→ 245 total
→ Common Stock (536 underlying)
Exercise/Conversion
Dividend Equivalent Units
[F1][F6]
2026-05-04$11.85/sh−1,072$12,703→ 491 total
→ Common Stock (1,072 underlying)

Footnotes (6)

[F1]Each stock unit represents a conditional right to receive one share of the company's common stock.
[F2]The restricted stock units are subject to vesting over three years with one third, rounded down to the nearest whole share of stock, vesting in each period.
[F3]The performance units are subject to vesting over three years with one third, rounded down to the nearest whole share of stock, vesting in each period.
[F4]The number of shares of common stock that will be delivered for each performance stock unit depends on the achievement of certain performance factors. Depending on actual performance, the number of shares of common stock delivered upon the vesting date (based on the terms outlined in the respective award agreement) can range from 0% to 150% of the number presented above.
[F5]The dividend equivalent units will vest proportionately with the underlying restricted stock units to which they relate.
[F6]The dividend equivalent units will vest proportionately with the underlying performance stock units to which they relate.

Signature

/s/ Alexander Baty, Attorney-in-Fact for Brad Martz|2026-05-06

1 file