The Supreme Court of Pennsylvania has held that a legatee is entitled to shares resulting from a stock split which occurred after the execution of a will and codicil but prior to death of testator where testator had disposed of all such stock owned by him at time he wrote the will and codicil.
Marks Will, 435 Pa. 155, 255 A.2d 512 (1969).
William J. McKim,
Wills - Legacies - Stock Splits,
Duq. L. Rev.
Available at: https://dsc.duq.edu/dlr/vol8/iss1/17