Arkolith/Insider Trading/MTRX/Form 4

Montalbano Douglas J

President, Matrix NACMATRIX SERVICE CO (MTRX) · full profile →Form 4 · filed Sep 2, 2025
No Open-Market Flow
Open-Market Buys
$0
Open-Market Sells
$0
Net Open-Market Flow
$0
Transactions
14
11 non-derivative · 3 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Aug 30, 2025Option exercise(M)1K——56K
Aug 30, 2025Tax withholding(F)7K$15.13$107K62K
Aug 30, 2025Grant(A)16K—$069K
Aug 30, 2025Tax withholding(F)808$15.13$12K53K
Aug 30, 2025Disposed to issuer(D)2K$15.13$28K54K
Aug 30, 2025Option exercise(M)2K——56K
Aug 30, 2025Tax withholding(F)520$15.13$8K54K
Aug 30, 2025Disposed to issuer(D)1K$15.13$18K54K
Aug 29, 2025Option exercise(M)4K——59K
Aug 29, 2025Tax withholding(F)2K$15.13$23K54K
Aug 29, 2025Disposed to issuer(D)4K$15.13$53K56K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Aug 30, 2025Option exercise(M)2K—$02K
Aug 30, 2025Option exercise(M)1K—$00
Aug 29, 2025Option exercise(M)4K—$07K

Transaction Codes

M
Option exercise / conversion
F
Shares withheld for taxes
A
Grant / award
D
Disposition to the issuer

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0000866273-25-000060) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML