DTI · Drilling Tools International Corp · Insider Trading

This transaction was completed pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 17, 2025.

This transaction was completed pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 17, 2025.

This transaction was completed pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 17, 2025.

Each restricted stock unit represents the contingent right to receive one share of the Issuer's common stock.

The restricted stock units vested 100% on May 13, 2026, the one-year anniversary of the grant date.

Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

The restricted stock units vested 100% on May 13, 2026, the one-year anniversary of the grant date.

Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

The restricted stock units vested 100% on May 13, 2026, the one-year anniversary of the grant date.

Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock. The restricted stock units vest 100% on April 29, 2027, the one-year anniversary of the grant date.

Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock. The restricted stock units vest 100% on April 29, 2027, the one-year anniversary of the grant date.

Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock. The restricted stock units vest 100% on April 29, 2027, the one-year anniversary of the grant date.

Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock. The restricted stock units vest 100% on April 29, 2027, the one-year anniversary of the grant date.

Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock. The restricted stock units vest 100% on April 29, 2027, the one-year anniversary of the grant date.

Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock. The restricted stock units vest 100% on April 29, 2027, the one-year anniversary of the grant date.

This transaction was completed pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 17, 2025.

This transaction was completed pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 17, 2025.

17,259 shares of Drilling Tools International Corporation's ("DTI") common stock received as a result of HHEP Directional, L.P.'s pro rata distribution of shares to its limited partners for no consideration.

172,593 shares of Drilling Tools International Corporation's ("DTI") common stock received as a result of HHEP-Directional, L.P.'s pro rata distribution of shares to its limited partners for no consideration.

281,665 shares of Drilling Tools International Corporation's (DTI") common stock received as a result of HHEP Directional, L.P.'s pro rata distribution of shares to its limited partners for no consideration.

The Reporting Person is the trustee of JDF Long Term Trust ("JDF"). The Reporting Person may be deemed to have voting power and dispositive power over the shares held by JDF.

This transaction was completed pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 17, 2025.

This transaction was completed pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 17, 2025.

This transaction was completed pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 17, 2025.

This transaction was completed pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 17, 2025.

This transaction was completed pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 17, 2025.

This transaction was completed pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 17, 2025.

This transaction was completed pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 17, 2025.

On December 4, 2025, MV Partners made a distribution of shares of Common Stock of the Company to one of MV Partners' limited partners. The Reporting Person is the sole owner and Chairman of the Board of Directors of MV Partners, Inc., the general partner of MV Partners. Mr. Vermillion disclaims any beneficial ownership of any shares of Common Stock held by MV Partners, other than his pecuniary interests therein.

32,606 shares of Drilling Tools International Corporation's (DTI") common stock received as a result of HHEP Directional, L.P.'s pro rata distribution of shares to its limited partners for no consideration.

The Reporting Person is the trustee of JDF Long Term Trust ("JDF"). The Reporting Person may be deemed to have voting power and dispositive power over the shares held by JDF.

1,959 shares of Drilling Tools International Corporation's ("DTI") common stock received as a result of HHEP Directional, L.P.'s pro rata distribution of shares to its limited partners for no consideration.

19,592 shares of Drilling Tools International Corporation's ("DTI") common stock received as a result of HHEP-Directional, L.P.'s pro rata distribution of shares to its limited partners for no consideration.

On November 28, 2025, MV Partners I, LP ("MV Partners") made a distribution of shares of common stock, par value $0.001 per share (the "Common Stock") of Drilling Tools International Corporation (the "Company") to MV Partners' limited partners and to MV Partners, Inc. The Reporting Person is the sole owner and Chairman of the Board of Directors of MV Partners, Inc., the general partner of MV Partners I. Mr. Vermillion disclaims any beneficial ownership of any shares of Common Stock held by MV Partners, other than his pecuniary interests therein.

On November 28, 2025, MV Partners I, LP ("MV Partners") made a distribution of shares of common stock, par value $0.001 per share (the "Common Stock") of Drilling Tools International Corporation (the "Company") to MV Partners' limited partners and to MV Partners, Inc. The Reporting Person is the sole owner and Chairman of the Board of Directors of MV Partners, Inc., the general partner of MV Partners I. Mr. Vermillion disclaims any beneficial ownership of any shares of Common Stock held by MV Partners, other than his pecuniary interests therein.

On November 28, 2025, MV Partners I, LP ("MV Partners") made a distribution of shares of common stock, par value $0.001 per share (the "Common Stock") of Drilling Tools International Corporation (the "Company") to MV Partners' limited partners and to MV Partners, Inc. The Reporting Person is the sole owner and Chairman of the Board of Directors of MV Partners, Inc., the general partner of MV Partners I. Mr. Vermillion disclaims any beneficial ownership of any shares of Common Stock held by MV Partners, other than his pecuniary interests therein.

A scrivener's error in the reporting person's prior Form 4 filed on September 16, 2025, resulted in a 300-share understatement of the amount of shares beneficially owned by MV Partners I, LP prior to the distributions reported herein. The amounts reported in this Form 4 reflect the corrected holdings.

On November 28, 2025, MV Partners I, LP ("MV Partners") made a distribution of shares of common stock, par value $0.001 per share (the "Common Stock") of Drilling Tools International Corporation (the "Company") to MV Partners' limited partners and to MV Partners, Inc. The Reporting Person is the sole owner and Chairman of the Board of Directors of MV Partners, Inc., the general partner of MV Partners I. Mr. Vermillion disclaims any beneficial ownership of any shares of Common Stock held by MV Partners, other than his pecuniary interests therein.

This transaction was completed pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 17, 2025.

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2.50 to $2.52, inclusive. The reporting person undertakes to Drilling Tools International Corporation, any security holder of Drilling Tools International Corporation, or the staff of the Securities and Exchange Commission, upon request, to provide full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote 2 to this Form 4.

This transaction was completed pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 16, 2025.

This transaction was executed at a price of $2.50.

This transaction was completed pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 16, 2025.

This transaction was executed in multiple trades, both at a price of $2.50.

2,177 shares of DTI's common stock received as a result of HHEP Directional, L.P.'s pro rata distribution of shares to its limited partners for no consideration.

21,768 shares of DTI's common stock received as a result of HHEP Directional, L.P.'s pro rata distribution of shares to its limited partners for no consideration.

36,227 shares of DTI's common stock received as a result of HHEP Directional, L.P.'s pro rata distribution of shares to its limited partners for no consideration.

The Reporting Person is the trustee of JDF Long Term Trust ("JDF"). The Reporting Person may be deemed to have voting power and dispositive power over the shares held by JDF.

38,417 shares of DTI's common stock received as a result of HHEP Directional, L.P.'s pro rata distribution of shares to its limited partners for no consideration.

3,842 shares of DTI's common stock received as a result of HHEP Directional, L.P.'s pro rata distribution of shares to its limited partners for no consideration.

63,939 shares of DTI's common stock received as a result of HHEP Directional, L.P.'s pro rata distribution of shares to its limited partners for no consideration.

The Reporting Person is the trustee of JDF Long Term Trust ("JDF"). The Reporting Person may be deemed to have voting power and dispositive power over the shares held by JDF.