InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (0 ops.)
Insider track record
Board DirectorDisclosed buys
0
Disclosed sells
0
T+90 hit rate
91%
T+90 mean return
+4.6%
Across 11 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Discover the full record of transactions filed by SLAGER DONALD W, Director. Officer active across 5 companies, notably Martin Marietta Materials INC. Cumulatively, 20 disclosures have been recorded. History available since 13 May 2021. The latest transaction was filed on 15 May 2025 (Attribution). Regulator: SEC (Form 4). All data is accessible without signup.
Declarations20 total
308 shares@ US$552.8634.4% of flowCommon StockSEC:0001127602-25-014647:0
1,575 shares0Common StockSEC:0000915389-25-000116:0
293 shares@ US$581.6935.5% of flowCommon StockSEC:0001127602-24-015865:0
362 shares@ US$400.5730.1% of flowCommon StockSEC:0001127602-23-015353:0
443 shares0Common StockSEC:0001127602-22-014573:0
388 shares0Common StockSEC:0001127602-21-016965:0
388 shares0Common StockSEC:0001127602-21-016965
16,647 sharesCommon StockSEC:0001209191-16-098973:0
7,833 sharesCommon StockSEC:0001209191-16-098973:1
20,181 sharesCommon StockSEC:0001209191-16-097104:0
11,024 sharesCommon StockSEC:0001209191-16-097104:1
21,857 sharesCommon StockSEC:0001209191-16-097104:2
11,573 sharesCommon StockSEC:0001209191-16-097104:3
20,181 sharesCommon StockSEC:0001209191-16-097107:0
9,157 sharesCommon StockSEC:0001209191-16-097107:1
21,857 sharesCommon StockSEC:0001209191-16-097107:2
10,284 sharesCommon StockSEC:0001209191-16-097107:3
43,992 sharesOrdinary SharesSEC:0000899243-16-012156:0
20,437 sharesCommon StockSEC:0001209191-16-088018:0
6,758 sharesCommon StockSEC:0001209191-16-088018:1
20 of 20 declarations
About SLAGER DONALD W
Donald W. Slager is a Director at Martin Marietta Materials Inc. He participates in the governance of the company, providing his expertise and strategic advice. Donald plays a key role in decisions that influence the direction and performance of Martin Marietta, a company specializing in construction materials.
