Insider · CIK 0001914788
Katherine Bolanowski
Files at ROCK (GIBRALTAR INDUSTRIES, INC.). First filing May 22, 2026, latest May 22, 2026.
In brief
Katherine Bolanowski files SEC Form 4 as officer at ROCK (GIBRALTAR INDUSTRIES, INC.). Since May 22, 2026, Katherine Bolanowski has reported 1 open-market buy worth $50k and 0 open-market sells worth $0, the latest filed on May 22, 2026.
A track record needs three past buys with six months of prices behind them; Katherine Bolanowski has 0, so none is measured yet.
The newest scored trade: bought $50k of ROCK on May 21, 2026, filed May 22, 2026, scored 58 (moderate). In the last 12 months: 1 buy worth $50k and 0 sells worth $0.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
ROCK: GIBRALTAR INDUSTRIES, INC.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 58Moderate | GIBRALTAR INDUSTRIES, INC. | $50k 1,400 shares | +9% | +5% from low-52% from high |
Transactions
Every row this insider has filed, 20 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 30, 2026 | ROCK GIBRALTAR INDUSTRIES, INC. | AGrant or award Restricted Stock Unit (2018 MSPP Match)derivative | +245 | $0.00 | $0 | 7,525 | 12 d ago |
| Jun 30, 2026 | ROCK GIBRALTAR INDUSTRIES, INC. | AGrant or award Restricted Stock Unit (2018 MSPP Match)derivative | +259 | $0.00 | $0 | 7,280 | Jul 1, 2026 |
| May 21, 2026 | ROCK GIBRALTAR INDUSTRIES, INC. | POpen-market purchase Common Stock | +1,256 | $35.63 | $45k | 17,245 | May 22, 2026 |
| May 21, 2026 | ROCK GIBRALTAR INDUSTRIES, INC. | POpen-market purchase Common Stock | +144 | $35.66 | $5,135 | 17,389 | May 22, 2026 |
| Mar 31, 2026 | ROCK GIBRALTAR INDUSTRIES, INC. | AGrant or award Restricted Stock Unit (2018 MSPP Match)derivative | +240 | $0.00 | $0 | 7,021 | Apr 1, 2026 |
| Mar 6, 2026 | ROCK GIBRALTAR INDUSTRIES, INC. | AGrant or award Restricted Stock Unit (2018 MSPP Match)derivative | +438 | $0.00 | $0 | 6,781 | Mar 9, 2026 |
| Mar 4, 2026 | ROCK GIBRALTAR INDUSTRIES, INC. | FTax withholding Common Stock | -2,601 | $43.05 | $112k | 15,989 | Mar 5, 2026 |
| Mar 2, 2026 | ROCK GIBRALTAR INDUSTRIES, INC. | AGrant or award Common Stock | +3,410 | $0.00 | $0 | 18,876 | Mar 4, 2026 |
| Mar 3, 2026 | ROCK GIBRALTAR INDUSTRIES, INC. | FTax withholding Common Stock | -286 | $43.83 | $13k | 18,590 | Mar 4, 2026 |
| Mar 1, 2026 | ROCK GIBRALTAR INDUSTRIES, INC. | FTax withholding Common Stock | -739 | $45.48 | $34k | 15,466 | Mar 3, 2026 |
| Dec 31, 2025 | ROCK GIBRALTAR INDUSTRIES, INC. | AGrant or award Restricted Stock Unit (2018 MSPP Match)derivative | +172 | $0.00 | $0 | 6,343 | Jan 2, 2026 |
| Sep 30, 2025 | ROCK GIBRALTAR INDUSTRIES, INC. | AGrant or award Restricted Stock Unit (2018 MSPP Match)derivative | +183 | $0.00 | $0 | 6,171 | Oct 1, 2025 |
| Jun 30, 2025 | ROCK GIBRALTAR INDUSTRIES, INC. | AGrant or award Restricted Stock Unit (2018 MSPP Match)derivative | +172 | $0.00 | $0 | 5,988 | Jul 1, 2025 |
| Mar 31, 2025 | ROCK GIBRALTAR INDUSTRIES, INC. | AGrant or award Restricted Stock Unit (2018 MSPP Match)derivative | +177 | $0.00 | $0 | 5,816 | Apr 1, 2025 |
| Mar 7, 2025 | ROCK GIBRALTAR INDUSTRIES, INC. | AGrant or award Restricted Stock Unit (2018 MSPP Match)derivative | +638 | $0.00 | $0 | 5,639 | Mar 11, 2025 |
| Mar 3, 2025 | ROCK GIBRALTAR INDUSTRIES, INC. | AGrant or award Common Stock | +2,302 | $0.00 | $0 | 16,205 | Mar 5, 2025 |
| Mar 1, 2025 | ROCK GIBRALTAR INDUSTRIES, INC. | FTax withholding Common Stock | -1,694 | $65.71 | $111k | 13,903 | Mar 3, 2025 |
| Feb 18, 2025 | ROCK GIBRALTAR INDUSTRIES, INC. | AGrant or award Common Stock | +932 | $0.00 | $0 | 15,597 | Feb 19, 2025 |
| Dec 31, 2024 | ROCK GIBRALTAR INDUSTRIES, INC. | AGrant or award Restricted Stock Unit (2018 MSPP Match)derivative | +136 | $0.00 | $0 | 5,002 | Jan 2, 2025 |
| Nov 1, 2024 | ROCK GIBRALTAR INDUSTRIES, INC. | AGrant or award Common Stock | +900 | $0.00 | $0 | 14,665 | Nov 4, 2024 |
Questions about Katherine Bolanowski
Answered from the filings on this page, as of the latest one.
Is Katherine Bolanowski buying or selling?
In the last 12 months Katherine Bolanowski reported 1 open-market buy worth $50k and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $50k of ROCK on May 21, 2026. Grants, option exercises and tax withholding are not counted.
How did Katherine Bolanowski's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Katherine Bolanowski has 0.
Where does Katherine Bolanowski file Form 4?
Katherine Bolanowski has filed Form 4 at ROCK (GIBRALTAR INDUSTRIES, INC.) as General Counsel, VP, Secretary. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.