Changes in Beneficial Ownership · 4/A
Drilling Tools International Corporation
DTINASDAQEQUITYCurrent
Changes in Beneficial Ownership
Structured filing — 4/A
ownership.xml
Amendment · This filing reports the amendment as submitted.
Filing details
- Report period
- 2026-02-28
- Original submission
- 2026-03-12
- Issuer
- Drilling Tools International Corp
- Issuer CIK
- 0001884516
- Trading symbol
- DTI
Reporting owner 1
- Name
- Domino Michael Wayne Jr.
- Reporting owner CIK
- 0001981953
- Relationship
- Officer
- Officer title
- President, DTR Division
- Address
- C/O DRILLING TOOLS INTERNATIONAL CORP., 10370 RICHMOND AVENUE, SUITE 1000, HOUSTON, TX, 77042
Non-derivative transactions
| Security | Transaction date | Code | Amount | A / D | Price (USD) | Owned after | Ownership |
|---|---|---|---|---|---|---|---|
| Common Stock | 2026-02-28 | F · Form 4 | 7,495 | D | 0 | 1,432,089 | D |
Table key
- F · Form 4
- Securities delivered or withheld for exercise price or tax liability under Rule 16b-3
- D
- Direct
Derivative holdings
| Security | Conversion / exercise price (USD) | Exercisable | Expires | Underlying security | Underlying shares | Amount owned | Ownership |
|---|---|---|---|---|---|---|---|
| Restricted Stock Units | [F1] | [F2] | [F2] | Common Stock | [F2] | 75,829 | D |
| Restricted Stock Units | [F1] | [F3] | [F3] | Common Stock | [F3] | 22,859 | D |
| Performance Stock Units | [F4] | [F5] | [F5] | Common Stock | [F5] | 68,577 | D |
| Stock Option (Right to Buy) | [F6] | [F6] | [F6] | Common Stock | [F6] | 300,000 | D |
| Stock Option (Right to Buy) | [F7] | [F7] | [F7] | Common Stock | [F7] | 370,264 | D |
Table key
- D
- Direct
Footnotes
- F2
- The RSUs vest in substantially equal installments on each of the first four (4) anniversaries of the grant date, February 28, 2025.↩ 1↩ 2↩ 3
- 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.↩ 1↩ 2↩ 3
- F4
- Each performance stock unit ("PSU") represents a contingent right to receive one share of the Company's common stock.↩ 1
- 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.↩ 1↩ 2↩ 3
Remarks
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 25,277 shares of common stock. In fact, as reported in this amendment, 7,495 shares were withheld by Drilling Tools International Corp (the "Company") to pay for taxes. The corrected amount is reflected in this amendment.
Signature 1
- Signed
- /s/ Michael Wayne Domino Jr.
- Date
- 2026-08-03
Company context
DTI is a Houston, Texas based leading oilfield services company that manufactures and rents downhole drilling tools used in horizontal and directional drilling of oil and natural gas wells. With roots dating back to 1984, DTI operates from 15 service and support centers across North America and maintains 11 international service and support centers across the EMEA and APAC regions. To learn more about DTI, please visit: www.drillingtools.com.