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

Keep exploring

Connected pages for GIBRALTAR INDUSTRIES, INC.

Build

Ask your agent about ROCK insider filings

This filing is the Follow view. The Build view lets your agent pull every Form 4 for the issuer, the net open-market picture over 90 days, and the accession behind each row, through REST or MCP.

Get a key Compare plansForm 4 data
Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/filing/0000912562-26-000120"
Ask your agent
Use Arkolith to summarize insider buying and selling at GIBRALTAR INDUSTRIES, INC.
over the last 90 days and cite the filings.