Michael Wayne Domino Jr. - 27 Feb 2026 Form 4 Insider Report for Drilling Tools International Corp (DTI)

Role
President, DTR Division
Signature
/s/ Michael Wayne Domino Jr.
Issuer symbol
DTI
Transactions as of
27 Feb 2026
Net transactions value
$0
Form type
4
Filing time
12 Mar 2026, 16:01:06 UTC
Previous filing
17 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Domino Michael Wayne Jr. President, DTR Division C/O DRILLING TOOLS INTERNATIONAL CORP., 10370 RICHMOND AVENUE, SUITE 1000, HOUSTON /s/ Michael Wayne Domino Jr. 12 Mar 2026 0001981953

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction DTI Common Stock Options Exercise +25,277 +1.8% $0.000000* 1,452,082 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 +25,277 +50% $0.000000* 75,829 28 Feb 2026 Common Stock 25,277 Direct F1, F2
transaction DTI Restricted Stock Units Award +22,859 $0.000000* 22,859 27 Feb 2026 Common Stock 22,859 Direct F1, F3
transaction DTI Performance Stock Units Award +68,577 $0.000000* 68,577 27 Feb 2026 Common Stock 68,577 Direct F4, F5
holding DTI Stock Option (Right to Buy) 300,000 27 Feb 2026 Common Stock Direct F6
holding DTI Stock Option (Right to Buy) 370,264 27 Feb 2026 Common Stock Direct F7
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

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 22,859 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 68,577 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.