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ROCK
NASDAQ Manufacturing

Gibraltar to Sell D.S. Brown Infrastructure Unit to Saint-Gobain for $208M Cash

Arie Shkolnikov · Analysis by Wiseek AI
More coverage: Building Materials Stocks · Materials
Sentiment info
Positive
Importance info
8
Price
$37.08
Mkt Cap
$1.089B
52W Low
$33.56
52W High
$75.08
52W Position info
10% above low
Off High info
51% below high
Rel. Volume info
1.4× avg
Market data snapshot near publication time

ROCK is trading near its 52-week low of $33.56 (10% above the low).

Summary

Gibraltar agreed to sell its D.S. Brown Infrastructure business to Saint-Gobain for $208 million in cash, with proceeds earmarked for debt reduction. The deal is expected to close in Q4 2026 pending antitrust clearance.


Key Events · M&A and Partnerships · ROCK

  • D.S. Brown Sold for $208M Cash

    Gibraltar's subsidiary D.S.B. Holding Corp. will sell all stock of The D.S. Brown Company to GCP Applied Technologies, a Saint-Gobain affiliate, for a $208.0 million base cash price subject to working capital, debt, cash and transaction expense adjustments.

  • Proceeds to Reduce Debt

    CEO Bill Bosway said proceeds will accelerate debt reduction and strengthen the balance sheet entering 2027, and that the transaction is expected to be highly tax efficient.

  • HSR Clearance Required

    Closing is conditioned on expiration or termination of the Hart-Scott-Rodino waiting period and absence of legal prohibitions; no Gibraltar shareholder vote is required.

  • Expected Close Before Year-End 2026

    The agreement targets a closing no earlier than December 7, 2026 and before the end of calendar year 2026, with an outside termination date of January 31, 2027 extendable up to five 30-day periods.


Analysis · ROCK · Manufacturing

Gibraltar is divesting its entire Infrastructure segment (D.S. Brown) for $208 million in cash, a meaningful portfolio simplification that sharpens focus on building products and agtech. Management says proceeds will be used to pay down debt and that the deal is expected to be highly tax efficient, strengthening the balance sheet entering 2027. The transaction is subject to HSR antitrust clearance and is expected to close before year-end 2026; no shareholder vote is required. Management will update 2026 guidance for the sale alongside Q3 results.

How filings like this one have moved

In the 30 days to Nov 2, 2026, 40.4% of the 1069 measured filings Wiseek scored 8 moved their stock by 5% or more by the next session's close. The median move was -0.35%. These are measured outcomes after filings of this importance, not a forecast for this one.

Measured one observation per ticker per day, after exclusions. Current figures: Filing Impact Tracker · open dataset

At the time of this filing, ROCK was trading at $37.08 on NASDAQ in the Manufacturing sector, with a market capitalization of approximately $1.1B. The 52-week trading range was $33.56 to $75.08. This filing was assessed with positive market sentiment and an importance score of 8 out of 10.

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ROCK - Latest Insights

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Oct 15, 2026, 1:00 AM EDT
Source: BusinessWire
Importance Score:
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Price at Filing: $36.68
Real-time Price: $41.84 info
Change: +$5.16 (+14%) info
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Filing Type: 8-K
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Change: -$7.81 (-16%) info
Market Cap: $1.242B info
ROCK
May 07, 2026, 9:53 AM EDT
Filing Type: 10-Q
Importance Score:
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May 07, 2026, 7:44 AM EDT
Filing Type: 8-K
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Price at Filing: $36.01
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Change: +$5.83 (+16%) info
Market Cap: $1.242B info