Robert Wayne Prejean - 27 Feb 2026 Form 4 Insider Report for Drilling Tools International Corp (DTI)

Role
Chief Executive Officer, Director
Signature
/s/ Robert Wayne Prejean
Issuer symbol
DTI
Transactions as of
27 Feb 2026
Net transactions value
$0
Form type
4
Filing time
12 Mar 2026, 16:01:10 UTC
Previous filing
16 Sep 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Prejean Robert Wayne Chief Executive Officer, Director C/O DRILLING TOOLS INTERNATIONAL CORP., 10370 RICHMOND AVENUE, SUITE 1000, HOUSTON /s/ Robert Wayne Prejean 12 Mar 2026 0001981986

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction DTI Common Stock Options Exercise +71,090 +16% $0.000000* 509,619 28 Feb 2026 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 DTI Restricted Stock Units Options Exercise -71,090 -25% $0.000000* 213,270 28 Feb 2026 Common Stock 71,090 Direct F1, F2
transaction DTI Restricted Stock Units Award +85,721 $0.000000* 85,721 27 Feb 2026 Common Stock 85,721 Direct F1, F3
transaction DTI Performance Stock Units Award +257,162 $0.000000* 257,162 27 Feb 2026 Common Stock 257,162 Direct F4, F5
holding DTI Stock Option (Right to Buy) 1,000,000 27 Feb 2026 Common Stock Direct F6
holding DTI Stock Option (Right to Buy) 1,201,872 27 Feb 2026 Common Stock Direct F7
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each restricted stock unit ("RSU") represents a contingent right to receive one share of Drilling Tools International Corp's (the "Company") common stock.
F2 The RSUs vest in substantially equal installments on each of the first four (4) anniversaries of the grant date, February 28, 2025.
F3 On February 27, 2026, the reporting person was granted 85,721 RSUs under the Company's 2023 Omnibus Incentive Plan, as may be amended from time to time (the "Plan"), pursuant to the 2026 long-term incentive program approved by the Board of Directors (the "2026 LTIP"). The RSUs vest in substantially equal installments on each of the first three (3) anniversaries of the grant date, subject to continued service.
F4 Each performance stock unit ("PSU") represents a contingent right to receive one share of the Company's common stock.
F5 On February 27, 2026, the reporting person was granted 257,162 PSUs under the Plan, pursuant to the 2026 LTIP. The PSUs are subject to the achievement of performance conditions based on EBITDA, weighted at 100%, with annual reset over a three-year performance vesting period. Achievement at threshold results in a 50% payout opportunity, while achievement at maximum results in a 200% payout opportunity.
F6 Two-thirds (2/3) of the stock options have vested in substantially equal installments on each of the first two (2) anniversaries of the grant date, with the remaining one-third (1/3) scheduled to vest on the third (3rd) anniversary of the grant date, February 14, 2024.
F7 All shares of common stock subject to the stock options are vested.

Remarks:

1. The Reporting Person may be deemed to have voting power and dispositive power over the shares held by Robjon Holdings, L.P. ("Robjon"). The Reporting Person is the President, Manager and sole owner of Robjon LLC, Robjon's general partner. The Reporting Person disclaims any beneficial ownership of any shares of common stock held by Robjon, other than his pecuniary interest therein.