Metz Baking the right to accelerate the redemption schedule set out in the August 7 letter of agreement. The Hoseltons signed the August 8 letter of agreement. The Ho-seltons and Metz Baking executed a third agreement August 15, 1984, transferring the Hoseltons’ shares to an escrow account. The August 15 escrow agreement provided in part that “Metz [Baking] has the privilege of accelerating annual redemptions set forth in the schedule.” Defendants’ Exhibit A-63 at 1.
After the various agreements were executed, Metz Baking redeemed the Hoseltons’ shares on an accelerated basis. The final redemption, originally scheduled for October 1, 1989, was accelerated first to October 1, 1988, and then to April 1, 1988. The Hosel-tons agreed to each acceleration by signing letters of agreement dated September 3, 1987, and March 2,1988. The final payment was made and the last of the Hoseltons’ shares in Metz Baking were redeemed April 1, 1988.
On May 1, 1988, The Invus Group, Ltd. (Invus), contacted the Metzes and expressed interest in exploring the possibility of acquiring Metz Baking. Invus was in the process of acquiring Heileman Baking Company but had decided that it could not retain Heile-man’s management because the managers were adverse competitive bidders for Heile-man. Having no experience running a baking company, Invus turned to the Metzes and offered them the opportunity to manage a combination of Metz Baking and Heileman Baking, a combination that would be one of the ten largest commercial baking companies in the United States. On May 8, 1988, the Metzes executed a binding letter of intent to sell their 100% stake in Metz Baking to an affiliate of Invus. Pursuant to their agreement with Invus, the Metzes transferred their shares of Metz Baking to Metz Holdings, a new corporation controlled by Invus, in exchange for $50.7 million and a minority interest in Metz Holdings. The Metzes remained in their management positions at Metz Baking, now expanded to include Heile-man. The Hoseltons, who no longer owned any Metz Baking shares, did not participate in the transaction. Eventually, in 1993, the Metzes sold their interest in Metz Holdings.
The gravamen of the Hoseltons’ complaint is that they were, wrongfully excluded from participating in the sale of Metz Baking to Metz Holdings. Under the redemption agreement, they argue, they should have been paid the Metz Holdings purchase price for any of their shares that would not have been redeemed as of May 8, 1988, under the original redemption schedule. The Hosel-tons’ complaint also alleges that-Bill Metz individually, as co-trustee of the Hoselton children’s trusts, and the Metzes collectively, as officers of Metz Baking, breached fiduciary duties of disclosure and loyalty owed to the Hoseltons.
The Metzes denied the allegations of the complaint, and the case went to trial by jury. The Hoseltons’ claims were thoroughly aired in a trial that consumed fourteen days over a three-week period. The jury found for the defendants. The District Court entered judgment in accordance with the jury verdict, and the Hoseltons appeal, raising evidentiary and instructional issues.
II.
We address the Hoseltons’ evidentiary issues first. At trial, the District Court refused to admit certain exhibits relating to the 1988 sale of Metz Baking to Invus as well as any evidence of the 1993 sale of the Metzes’ interests in Metz Holdings. The District Court admitted the handwritten notes and deposition testimony of Robert V. Williams, the Hoseltons’ accountant when the redemption agreement was negotiated. The Hosel-tons challenge each of these rulings, and we consider each in turn.
As a preliminary matter, we note that our standard of review is a narrow one. A district court has broad discretion when deciding whether to admit evidence, and we will not disturb an evidentiary ruling “absent a clear and prejudicial abuse of that discretion.” Laubach v. Otis Elevator Co., 37 F.3d 427, 428-29 (8th Cir.1994).