SANDBROOK WILLIAM J Insider Trades

Insider Trading History

Track insider trading activity for SANDBROOK WILLIAM J. See latest buy and sell transactions across all companies.

Holdings

Company
Holding Value
Last Transaction
Sale/Purchase
Amount
Price
Current Price

Insider Trades History

Company
Holding Value
Last Transaction
Sale/Purchase
Amount
Price
Current Price
Knife River
Knife River KNF
Director
Holding Value $670k 7,735 shares
Last Trade
May 20, 2026 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$150k 2,040 shares
$73.52
$86.64
Comfort Systems USA
Comfort Systems USA FIX
Director
Holding Value $14.8M 7,771 shares
Last Trade
May 18, 2026 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$195k 105 shares
$1,853.84
$1,908.07
Comfort Systems USA
Comfort Systems USA FIX
Director
Holding Value $14.6M 7,666 shares
Last Trade
Apr 29, 2026 Sale (Open Market)Shares sold on the open market or in a private sale.
$2.6M 1,500 shares
$1,732.67
$1,908.07
Comfort Systems USA
Comfort Systems USA FIX
Director
Holding Value $17.5M 9,166 shares
Last Trade
Feb 24, 2026 Sale (Open Market)Shares sold on the open market or in a private sale.
$3.61M 2,500 shares
$1,443.32
$1,908.07
Comfort Systems USA
Comfort Systems USA FIX
Director
Holding Value $22.3M 11,666 shares
Last Trade
Sep 10, 2025 Sale (Open Market)Shares sold on the open market or in a private sale.
$587k 800 shares
$733.56
$1,908.07
Comfort Systems USA
Comfort Systems USA FIX
Director
Holding Value $24M 12,566 shares
Last Trade
Sep 09, 2025 Sale (Open Market)Shares sold on the open market or in a private sale.
$496k 700 shares
$708.55
$1,908.07
Comfort Systems USA
Comfort Systems USA FIX
Director
Holding Value $25.1M 13,166 shares
Last Trade
Aug 25, 2025 Sale (Open Market)Shares sold on the open market or in a private sale.
$483k 700 shares
$689.58
$1,908.07
Knife River
Knife River KNF
Director
Holding Value $493k 5,695 shares
Last Trade
May 22, 2025 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$150k 1,551 shares
$96.68
$86.64
Comfort Systems USA
Comfort Systems USA FIX
Director
Holding Value $26.5M 13,866 shares
Last Trade
May 16, 2025 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$161k 342 shares
$471.97
$1,908.07
Comfort Systems USA
Comfort Systems USA FIX
Director
Holding Value $25.8M 13,524 shares
Last Trade
May 17, 2024 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$157k 498 shares
$316.23
$1,908.07
Zapata Computing Holdings - Warrants (15/02/2029)
Zapata Computing Holdings - Warrants (15/02/2029) ZPTAW
10% owner
Holding Value $0 0 shares
Last Trade
Apr 27, 2024 Sale
$471k 3,927,070 shares
$0.12
$0.40
Zapata Computing Holdings
Zapata Computing Holdings ZPTA
10% owner
Holding Value $0 0 shares
Last Trade
Apr 27, 2024 Sale
$6.2M 3,927,070 shares
$1.58
$1.90
Andretti Acquisition
Andretti Acquisition WNNR
10% owner
Holding Value $0 0 shares
Last Trade
Apr 27, 2024 Sale
$53.4M 3,927,070 shares
$13.60
$13.60
Knife River
Knife River KNF
Director
Holding Value $132k 1,519 shares
Last Trade
Nov 15, 2023 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$87.4k 1,519 shares
$57.57
$86.64
Comfort Systems USA
Comfort Systems USA FIX
Director
Holding Value $24.9M 13,026 shares
Last Trade
Nov 09, 2023 Sale (Open Market)Shares sold on the open market or in a private sale.
$926k 5,000 shares
$185.19
$1,908.07
Comfort Systems USA
Comfort Systems USA FIX
Director
Holding Value $34.4M 18,026 shares
Last Trade
Sep 12, 2023 Sale (Open Market)Shares sold on the open market or in a private sale.
$1.41M 7,500 shares
$187.52
$1,908.07
Comfort Systems USA
Comfort Systems USA FIX
Director
Holding Value $48.7M 25,526 shares
Last Trade
May 16, 2023 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$160k 1,065 shares
$150.66
$1,908.07
Comfort Systems USA
Comfort Systems USA FIX
Director
Holding Value $324k 170 shares
Last Trade
Jun 02, 2022 Purchase (Gift)Shares transferred as a gift rather than bought or sold for cash.
$15.6k 170 shares
$92.00
$1,908.07
Comfort Systems USA
Comfort Systems USA FIX
Director
Holding Value $48.3M 25,311 shares
Last Trade
May 17, 2022 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$160k 1,869 shares
$85.58
$1,908.07
Comfort Systems USA
Comfort Systems USA FIX
Director
Holding Value $44.7M 23,442 shares
Last Trade
May 18, 2021 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$159k 1,939 shares
$82.02
$1,908.07

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