Arkolith/Insider Trading/ROCK/Form 4

Bolanowski Katherine

General Counsel, VP, SecretaryGIBRALTAR INDUSTRIES, INC. (ROCK) · full profile →Form 4 · filed May 22, 2026
Net Buying
Open-Market Buys
$50K
Open-Market Sells
$0
Net Open-Market Flow
$50K
Transactions
2
2 non-derivative · 0 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
May 21, 2026Buy(P)1K$35.63$45K17K
May 21, 2026Buy(P)144$35.66$5K17K

Transaction Codes

P
Open-market purchase

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0000912562-26-000120) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML