InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (4 ops.)
Insider track record
Board DirectorDisclosed buys
0
Disclosed sells
4
T+90 hit rate
100%
T+90 mean return
+17.1%
Across 1 buy signal with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Browse the full record of transactions filed by SANDBROOK WILLIAM J, Director. Officer active across 3 companies, notably Comfort Systems USA INC. In total, 13 disclosures have been logged. Split: 0 buy · 4 sells. Total volume traded: €2.2m. History available since 18 May 2021. The latest transaction was disclosed on 16 May 2025 (Attribution). Regulator: SEC (Form 4). The full history is accessible without signup.
Declarations13 total
342 shares0Common StockSEC:0001415889-25-013756:0
498 shares0Common StockSEC:0001415889-24-013867:0
1,905 shares0Common StockSEC:0001225208-24-006122:0
1,519 shares@ US$57.57100.0% of flowCommon StockSEC:0001225208-23-010263:0
5,000 shares@ US$185.185539.8% of flowCommon StockSEC:0001415889-23-014986:0
7,500 shares@ US$187.515260.2% of flowCommon StockSEC:0001415889-23-013249:0
1,065 shares0Common StockSEC:0001415889-23-008188:0
850 shares0Common StockSEC:0001415889-22-006150:0
1,869 shares0Common StockSEC:0001415889-22-005325:0
1,939 shares0Common StockSEC:0001179110-21-005609:0
1,939 shares0Common StockSEC:0001179110-21-005609
4,077 sharesCommon stockSEC:0001073429-16-000291:0
2,423 sharesCommon stockSEC:0001073429-16-000291:1
13 of 13 declarations
About SANDBROOK WILLIAM J
William J. Sandbrook is a Board Member at Comfort Systems USA Inc., a construction services company. As a board member, he participates in the governance of the company and in strategic decision-making.
