| 2022-08-26 | Sale | CF Industries Holdings, Inc. CF | 3,000 0.0015% | $118.64 | $355,920 | -28.95% | ||
| 2020-09-04 | Summit Materials, Inc. SUM | President & CEO | 66,000 0.0594% | $15.24 | $1.01M | +84.42% | ||
| 2016-03-01 | CF Industries Holdings, Inc. CF | director | 6,000 0.0026% | $36.25 | $217,523 | -19.46% |