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Drilling Tools International (DTI) director exercises 28,626 RSUs into common stock

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Drilling Tools International Corp director Jack D. Furst exercised equity awards into common stock. On May 13, 2026, he converted 28,626 restricted stock units into the same number of common shares, a non-cash derivative exercise at an exercise price of $0.00 per share. After this transaction, he holds 60,948 common shares directly, plus indirect interests in 458,737 shares held by JDF Long Term Trust, where he may be deemed to have voting and dispositive power. An additional 118,252 shares are held by Oak Stream Investors II, Ltd., where he disclaims beneficial ownership beyond his pecuniary interest. All stock options held by him are vested and were issued in exchange for options to purchase 250,000 Legacy DTI shares at $0.85 per share in connection with the prior business combination.

Positive

  • None.

Negative

  • None.
Insider FURST JACK D
Role null
Type Security Shares Price Value
Exercise Restricted Stock Units 28,626 $0.00 --
Exercise Common Stock 28,626 $0.00 --
holding Restricted Stock Units -- -- --
holding Stock Option (right to buy) -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Restricted Stock Units — 0 shares (Direct, null); Common Stock — 60,948 shares (Direct, null); Stock Option (right to buy) — 0 shares (Direct, null); Common Stock — 118,252 shares (Indirect, by Oak Stream Investors II, Ltd.)
Footnotes (1)
  1. The Reporting Person disclaims any beneficial ownership of any shares of common stock held by Oak Stream Investors II, Ltd., other than his pecuniary interest therein. 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. 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. The restricted stock units vest 100% on April 28, 2027, the one-year anniversary of the grant date. All shares of common stock subject to stock options held by the Reporting Person are vested. The stock options were received in exchange for stock options to purchase 250,000 shares of common stock of Drilling Tools International Holdings, Inc. ("Legacy DTI") for $0.85 per share in connection with the Issuer's business combination with Legacy DTI.
RSUs exercised 28,626 shares Restricted stock units converted into common stock on May 13, 2026
Direct common shares after transaction 60,948 shares Direct ownership of Drilling Tools International common stock following exercise
JDF Long Term Trust holdings 458,737 shares Indirect holdings where reporting person may have voting and dispositive power
Oak Stream Investors II holdings 118,252 shares Indirect holdings with beneficial ownership disclaimed except pecuniary interest
Legacy option grant size 250,000 shares at $0.85/share Legacy DTI options exchanged in business combination, all options now vested
Exercise price of RSUs $0.00 per share Reported exercise price for conversion of 28,626 restricted stock units
Restricted Stock Units financial
"Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock."
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
Stock Option (right to buy) financial
"All shares of common stock subject to stock options held by the Reporting Person are vested."
pecuniary interest financial
"disclaims any beneficial ownership of any shares ... other than his pecuniary interest therein."
voting power and dispositive power financial
"may be deemed to have voting power and dispositive power over the shares held by JDF."
Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a 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). See Instruction 10.
1. Name and Address of Reporting Person*
FURST JACK D
(Last)(First)(Middle)
10370 RICHMOND AVENUE, SUITE 1000
(Street)
HOUSTON TEXAS 77042
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
Drilling Tools International Corp [ DTI ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/13/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock05/13/2026M28,626A$0.0060,948D
Common Stock118,252Iby Oak Stream Investors II, Ltd.(1)
Common Stock458,737Iby JDF Long Term Trust(2)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Units(3)05/13/2026M28,626 (4) (4)Common Stock28,626$00D
Restricted Stock Units(3) (5) (5)Common Stock(5)23,438D
Stock Option (right to buy)(6) (6) (6)Common Stock(6)57,059(6)D
Explanation of Responses:
1. The Reporting Person disclaims any beneficial ownership of any shares of common stock held by Oak Stream Investors II, Ltd., other than his pecuniary interest therein.
2. 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.
3. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.
4. The restricted stock units vested 100% on May 13, 2026, the one-year anniversary of the grant date.
5. The restricted stock units vest 100% on April 28, 2027, the one-year anniversary of the grant date.
6. All shares of common stock subject to stock options held by the Reporting Person are vested. The stock options were received in exchange for stock options to purchase 250,000 shares of common stock of Drilling Tools International Holdings, Inc. ("Legacy DTI") for $0.85 per share in connection with the Issuer's business combination with Legacy DTI.
/s/ John Niedzwiecki, as Attorney-in-fact05/13/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What did Jack D. Furst do in this Drilling Tools International (DTI) Form 4?

Jack D. Furst exercised 28,626 restricted stock units into 28,626 shares of Drilling Tools International common stock. The transaction was coded as a derivative exercise, with a reported exercise price of $0.00 per share, and involved no open-market buying or selling.

How many Drilling Tools International (DTI) shares does Jack D. Furst own after this filing?

After the reported transactions, Jack D. Furst holds 60,948 Drilling Tools International common shares directly. He also has indirect interests in 458,737 shares through JDF Long Term Trust and 118,252 shares held by Oak Stream Investors II, Ltd., subject to a beneficial ownership disclaimer.

What are the indirect holdings reported for Jack D. Furst in DTI stock?

Indirectly, 458,737 Drilling Tools International shares are held by JDF Long Term Trust, where Jack D. Furst may have voting and dispositive power. Another 118,252 shares are held by Oak Stream Investors II, Ltd., where he disclaims beneficial ownership except for his pecuniary interest.

How many restricted stock units did Jack D. Furst exercise in Drilling Tools International (DTI)?

He exercised 28,626 restricted stock units, each representing a contingent right to receive one Drilling Tools International common share. These units vested 100% on May 13, 2026, the one-year anniversary of the grant date, triggering the derivative exercise into common stock.

What does the Form 4 say about Jack D. Furst’s stock options in Drilling Tools International?

All shares subject to stock options held by Jack D. Furst are reported as vested. These options were received in exchange for options to purchase 250,000 shares of Legacy Drilling Tools International Holdings common stock at $0.85 per share in connection with the business combination.

Is Jack D. Furst’s transaction in DTI stock an open-market buy or sale?

No open-market buys or sales are reported. The Form 4 shows a derivative exercise coded as “M,” converting 28,626 restricted stock units into common shares at an exercise price of $0.00, without any corresponding open-market sale or purchase transaction.