“… See Cadman and Sunder (2014),Gopalan et al (2014),Cziraki and Groen-Xu (2017),Edmans, Fang, and Lewellen (2017), and Gonzalez-Uribe and Groen-Xu (2017).3 See Huddart,Ke, and Shi (2007) andJeng, Metrick, and Zeckhauser (2003). In addition, corporate insiders must report changes in ownership to the SEC within two business days (https://www.sec.gov/fast-answers/answersform345htm.html) and firms routinely impose their own restrictions on insider trading activity (see, e.g.,Bettis, Coles, and Lemmon (2000) andJagolinzer, Larcker, and Taylor (2011)).…”