We measure the differential effects on shareholder wealth and tendering behavior of any-or-all, two-tier and partial tender offers and find no evidence that shareholders are disadvantaged by front-end-loaded corporate takeovers. Shareholders fare as well when the terms of an offer for control are negotiated with target-firm management as when they are not. Most cash tender offers executed between 1981 and 1984 were negotiated, and almost all two-tier offers were negotiated.

Antitakeover amendments (shark repellents) restrict the transfer of corporate control. On average, the public announcement of antitakeover amendments by 600 firms in the period 1979–1985 has an insignificant effect on the value of announcing firms' shares. However, different types of amendments have varying effects. Non-fair-price amendments have an average significant negative effect of 2.95% on share prices, while fair-price amendments have an insignificant effect. The more harmful amendments have larger insider holdings and lower institutional holdings, suggesting a partial explanation of why shareholders approve these amendments.