DMC Global (NASDAQ: BOOM) CAO uses 230 shares to cover tax on vesting

Rhea-AI Filing Summary

DMC Global Inc. Chief Accounting Officer Brett A. Seger reported a routine share withholding related to equity compensation. On May 28, 2026, 230 shares of common stock were withheld to satisfy tax obligations upon vesting of an award, at an indicated price of $7.16 per share.

These shares were not sold in the open market but used to cover taxes. After this tax-withholding disposition, Seger directly holds 21,408 shares of DMC Global Inc. common stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Seger Brett A.

Role Chief Accounting Officer

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	230	$7.16	$2K

Holdings After Transaction: Common Stock — 21,408 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Shares withheld for taxes: 230 shares Indicated price per share: $7.16 per share Shares held after transaction: 21,408 shares

3 metrics

Shares withheld for taxes 230 shares Tax-withholding disposition on common stock

Indicated price per share $7.16 per share Value used for 230 withheld shares

Shares held after transaction 21,408 shares Direct holdings following tax withholding

Key Terms

tax-withholding disposition, vesting, equity award

3 terms

tax-withholding disposition financial

"This was a tax-withholding disposition, not an open-market sale"

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

vesting financial

"to satisfy tax obligations upon the vesting of the underlying award"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

equity award financial

"tax obligations upon the vesting of the underlying award"

An equity award is a form of pay where a company gives employees, executives or other stakeholders the right to own or buy company shares—either immediately or after meeting certain conditions. Think of it like receiving slices of the company pie now or coupons to claim slices later; it matters to investors because it affects ownership dilution, executive incentives and reported compensation costs, and signals how management is being rewarded and retained.

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED 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^*

Seger Brett A.

(Last) (First) (Middle)

C/O DMC GLOBAL INC.

11800 RIDGE PARKWAY, SUITE 300

(Street)

BROOMFIELD COLORADO 80021

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
DMC Global Inc. [ BOOM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Accounting Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/28/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/28/2026		F		230(1)	D	$7.16	21,408	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents withholding of shares to satisfy tax obligations upon the vesting of the underlying award.

Remarks:

	/s/ Lindsey Rhodes, by Power of Attorney	05/28/2026
	** Signature of Reporting Person	Date
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)

FAQ

What insider transaction did DMC Global (BOOM) report for Brett A. Seger?

DMC Global reported that Chief Accounting Officer Brett A. Seger had 230 common shares withheld to cover taxes on a vesting equity award. This was a tax-withholding disposition, not an open-market sale, and reflects routine treatment of stock-based compensation.

How many DMC Global (BOOM) shares were used for tax withholding in this Form 4?

The Form 4 shows that 230 shares of DMC Global common stock were withheld. The footnote explains this withholding satisfied tax obligations triggered by the vesting of an underlying award, rather than representing a discretionary market trade.

What price per share is reported for the DMC Global (BOOM) tax-withholding transaction?

The filing reports an indicated price of $7.16 per share for the 230 shares withheld. This figure helps calculate the value of stock used to satisfy tax liabilities associated with the vesting equity award described in the footnote.

How many DMC Global (BOOM) shares does Brett A. Seger hold after this transaction?

After the tax-withholding disposition, Brett A. Seger directly holds 21,408 shares of DMC Global common stock. This post-transaction balance, reported in the Form 4, shows his remaining equity position following the routine tax-related withholding.

Was the DMC Global (BOOM) Form 4 transaction an open-market sale?

No, the Form 4 describes a tax-withholding disposition, not an open-market sale. A footnote clarifies that 230 shares were withheld specifically to satisfy tax obligations arising from the vesting of an underlying equity award granted to the executive.