SEC EDGAR · Insider purchase
DTI: Prejean Robert Wayne reported buying shares
1 reported purchase of non-derivative securities. Code P includes open-market and private purchases; it does not establish motive.
Follow DTI- Became public
- Nov 10, 2026, 5:06 PM EST
- Event / period date
- Nov 9, 2026
- Collected
- Nov 10, 2026, 5:16 PM EST
Why this is connected
This filing identifies Drilling Tools International Corp as the issuer of the security. The company's SEC identifier connects it to DTI.
Reported transactions
Prejean Robert Wayne (Chief Executive Officer)
100,000 shares · Common Stock
Nov 9, 2026 · $1.643 per share
Value calculated from the reported shares and prices: $164,300.00.
Code P covers open-market and private purchases. Grants, option exercises, and tax withholding are excluded from purchase results. Read the source footnotes for ownership and pricing details.
Source evidence
Read the source excerpt or record
<?xml version="1.0"?>
<ownershipDocument>
<schemaVersion>X0609</schemaVersion>
<documentType>4</documentType>
<periodOfReport>2026-11-09</periodOfReport>
<issuer>
<issuerCik>0001884516</issuerCik>
<issuerName>Drilling Tools International Corp</issuerName>
<issuerTradingSymbol>DTI</issuerTradingSymbol>
<issuerForeignTradingSymbol></issuerForeignTradingSymbol>
</issuer>
<reportingOwner>
<reportingOwnerId>
<rptOwnerCik>0001981986</rptOwnerCik>
<rptOwnerName>Prejean Robert Wayne</rptOwnerName>
</reportingOwnerId>
<reportingOwnerAddress>
<rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
<rptOwnerStreet1>C/O DRILLING TOOLS INTERNATIONAL CORP.</rptOwnerStreet1>
<rptOwnerStreet2>10370 RICHMOND AVENUE, SUITE 1000</rptOwnerStreet2>
<rptOwnerCity>HOUSTON</rptOwnerCity>
<rptOwnerState>TX</rptOwnerState>
<rptOwnerZipCode>77042</rptOwnerZipCode>
<rptOwnerStateDescription></rptOwnerStateDescription>
</reportingOwnerAddress>
<reportingOwnerRelationship>
<isDirector>true</isDirector>
<isOfficer>true</isOfficer>
<isTenPercentOwner>false</isTenPercentOwner>
<isOther>false</isOther>
<officerTitle>Chief Executive Officer</officerTitle>
</reportingOwnerRelationship>
</reportingOwner>
<aff10b5One>false</aff10b5One>
<nonDerivativeTable>
<nonDerivativeTransaction>
<securityTitle>
<value>Common Stock</value>
</securityTitle>
<transactionDate>
<value>2026-11-09</value>
</transactionDate>
<transactionCoding>
<transactionFormType>4</transactionFormType>
<transactionCode>P</transactionCode>
<equitySwapInvolved>false</equitySwapInvolved>
</transactionCoding>
<transactionAmounts>
<transactionShares>
<value>100000</value>
</transactionShares>
<transactionPricePerShare>
<value>1.643</value>
<footnoteId id="F1"/>
</transactionPricePerShare>
<transactionAcquiredDisposedCode>
<value>A</value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value>591076</value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value>
</directOrIndirectOwnership>
</ownershipNature>
</nonDerivativeTransaction>
</nonDerivativeTable>
<derivativeTable>
<derivativeHolding>
<securityTitle>
<value>Restricted Stock Units</value>
</securityTitle>
<conversionOrExercisePrice>
<footnoteId id="F2"/>
</conversionOrExercisePrice>
<exerciseDate>
<footnoteId id="F3"/>
</exerciseDate>
<expirationDate>
<footnoteId id="F3"/>
</expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Common Stock</value>
</underlyingSecurityTitle>
<underlyingSecurityShares>
<footnoteId id="F3"/>
</underlyingSecurityShares>
</underlyingSecurity>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value>213270</value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value>
</directOrIndirectOwnership>
</ownershipNature>
</derivativeHolding>
<derivativeHolding>
<securityTitle>
<value>Restricted Stock Units</value>
</securityTitle>
<conversionOrExercisePrice>
<footnoteId id="F2"/>
</conversionOrExercisePrice>
<exerciseDate>
<footnoteId id="F4"/>
</exerciseDate>
<expirationDate>
<footnoteId id="F4"/>
</expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Common Stock</value>
</underlyingSecurityTitle>
<underlyingSecurityShares>
<footnoteId id="F4"/>
</underlyingSecurityShares>
</underlyingSecurity>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value>85721</value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value>
</directOrIndirectOwnership>
</ownershipNature>
</derivativeHolding>
<derivativeHolding>
<securityTitle>
<value>Performance Stock Units</value>
</securityTitle>
<conversionOrExercisePrice>
<footnoteId id="F5"/>
</conversionOrExercisePrice>
<exerciseDate>
<footnoteId id="F6"/>
</exerciseDate>
<expirationDate>
<footnoteId id="F6"/>
</expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Common Stock</value>
</underlyingSecurityTitle>
<underlyingSecurityShares>
<footnoteId id="F6"/>
</underlyingSecurityShares>
</underlyingSecurity>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value>257162</value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value>
</directOrIndirectOwnership>
</ownershipNature>
</derivativeHolding>
<derivativeHolding>
<securityTitle>
<value>Stock Option (Right to Buy)</value>
</securityTitle>
<conversionOrExercisePrice>
<footnoteId id="F7"/>
</conversionOrExercisePrice>
<exerciseDate>
<footnoteId id="F7"/>
</exerciseDate>
<expirationDate>
<footnoteId id="F7"/>
</expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Common Stock</value>
</underlyingSecurityTitle>
<underlyingSecurityShares>
<footnoteId id="F7"/>
</underlyingSecurityShares>
</underlyingSecurity>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value>1000000</value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value>
</directOrIndirectOwnership>
</ownershipNature>
</derivativeHolding>
<derivativeHolding>
<securityTitle>
<value>Stock Option (Right to Buy)</value>
</securityTitle>
<conversionOrExercisePrice>
<footnoteId id="F8"/>
</conversionOrExercisePrice>
<exerciseDate>
<footnoteId id="F8"/>
</exerciseDate>
<expirationDate>
<footnoteId id="F8"/>
</expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Common Stock</value>
</underlyingSecurityTitle>
<underlyingSecurityShares>
<footnoteId id="F8"/>
</underlyingSecurityShares>
</underlyingSecurity>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value>1201872</value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value>
</directOrIndirectOwnership>
</ownershipNature>
</derivativeHolding>
</derivativeTable>
<footnotes>
<footnote id="F1">The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $1.49 to $1.67, inclusive. The reporting person undertakes to Drilling Tools International Corporation (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, to provide full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote 2 to this Form 4.</footnote>
<footnote id="F2">Each RSU represents a contingent right to receive one share of the Company common stock.</footnote>
<footnote id="F3">The RSUs vest in substantially equal installments on each of the first four (4) anniversaries of the grant date, February 28, 2025.</footnote>
<footnote id="F4">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.</footnote>
<footnote id="F5">Each performance stock unit ("PSU") represents a contingent right to receive one share of the Company's common stock.</footnote>
<footnote id="F6">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.</footnote>
<footnote id="F7">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.</footnote>
<footnote id="F8">All shares of common stock subject to the stock options are vested.</footnote>
</footnotes>
<remarks>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.; On March 12, 2026, the reporting person filed a Form 4 which inadvertently reported that, following the vesting of restricted stock units ("RSUs"), he retained 71,090 shares of common stock. In fact, as reported in this amendment, 18,543 shares were withheld by Drilling Tools International Corp (the "Company") to pay for taxes. The corrected amount is reflected in this amendment.
Exhibit 24 - Power of Attorney.</remarks>
<ownerSignature>
<signatureName>/s/ John Niedzwiecki, as Attorney-in-fact</signatureName>
<signatureDate>2026-11-10</signatureDate>
</ownerSignature>
</ownershipDocument>Original documents control. Public records can be amended, and company connections may require interpretation. Nothing here is investment advice.