'''Donald C. Grenesko''' (born ca. 1949) is an American former business executive who worked for the [[Tribune Company]] from 1980 to 2008. During Tribune’s ownership of the [[Chicago Cubs]], he served as club president from December 1988 to October 1991.

==Tribune Company== Grenesko served as vice president of corporate finance for Blunt, Ellis & Loewi, Inc. before joining the [[Tribune Company]] in June 1980 as treasury manager. He was named assistant treasurer in February 1981 and treasurer in October 1984.<ref name="Tribune Co. elects Smith">{{cite web|url=https://www.newspapers.com/clip/102329494/tribune-co-elects-smith/|title=Tribune Co. elects Smith|page=57|work=[[Chicago Tribune]]|via=Newspapers.com|date=February 19, 1981|accessdate=May 22, 2022}}</ref><ref name="Tribune Co. names 2 finance execs">{{cite web|url=https://www.newspapers.com/clip/102329698/tribune-co-names-2-finance-execs/|title=Tribune Co. names 2 finance execs|page=34|work=[[Chicago Tribune]]|via=Newspapers.com|date=October 16, 1984|accessdate=May 22, 2022}}</ref>

Tribune, which owned the [[Chicago Cubs]], named Grenesko executive vice president in charge of business operations for the team in February 1985.<ref name="Sports briefly">{{cite web|url=https://www.newspapers.com/clip/102392637/sports-briefly/|title=Sports briefly|page=13|work=[[The Times of Northwest Indiana]]|via=Newspapers.com|date=February 5, 1985|accessdate=May 23, 2022}}</ref><ref name="Transactions">{{cite web|url=https://www.newspapers.com/clip/102329925/transactions/|title=Transactions|page=24|work=[[Times Leader]]|via=Newspapers.com|date=February 5, 1985|accessdate=May 22, 2022}}</ref> In December 1988, he was promoted to club president and chief executive officer.<ref name="More baseball">{{cite web|url=https://www.newspapers.com/clip/102331128/more-baseball/|title=More baseball|page=18|work=[[Akron Beacon Journal]]|via=Newspapers.com|date=December 3, 1988|accessdate=May 22, 2022}}</ref>

In October 1991, Grenesko was named Tribune's vice president and chief financial officer,<ref name="Essian fired by Chicago Cubs">{{cite web|url=https://www.newspapers.com/clip/102331619/essian-fired-by-chicago-cubs/|title=Essian fired by Chicago Cubs|page=29|author=[[Associated Press]]|work=[[Spokane Chronicle]]|via=Newspapers.com|date=October 18, 1991|accessdate=May 22, 2022}}</ref> and he resigned as the Cubs' president.<ref name="Cubs could be ready to give MacPhail power">{{cite web|url=https://www.newspapers.com/clip/102335507/cubs-could-be-ready-to-give-macphail/|title=Cubs could be ready to give MacPhail power|author=Knight-Ridder/Tribune Services|page=55|work=[[The Pantagraph]]|via=Newspapers.com|date=September 7, 1994|accessdate=May 22, 2022}}</ref>

In 2005, he was among several Tribune executives named in a [[class action]] lawsuit over allegations the company overstated circulation numbers in an effort to charge more for advertising.<ref name="Tribune shareholders file class-action suit">{{cite web|url=https://www.newspapers.com/clip/102391860/tribune-shareholders-file-class-action/|title=Tribune shareholders file class-action suit|page=32|author=[[Associated Press]]|work=[[The Dispatch / The Rock Island Argus|The Rock Island Argus]]|via=Newspapers.com|date=May 5, 2005|accessdate=May 23, 2022}}</ref>

In March 2008, Grenesko retired from Tribune.<ref name="Bigelow named Tribune Co. CFO">{{cite web|url=https://www.newspapers.com/clip/102392637/sports-briefly/|title=Bigelow named Tribune Co. CFO|author=Phil Rosenthal|page=3-3|work=[[The Pantagraph]]|via=Newspapers.com|date=March 25, 2008|accessdate=May 23, 2022}}</ref> He was named a board director for [[Freedom Communications]] in February 2010.<ref name="New board named for OA's parent company">{{cite web|url=https://www.newspapers.com/clip/102392156/new-board-named-for-oas-parent-company/|title=New board named for OA's parent company|page=A5|work=[[Odessa American]]|via=Newspapers.com|date=February 26, 2010|accessdate=May 23, 2022}}</ref>

==References== {{reflist|9}}

{{Chicago Cubs Presidents}}

{{DEFAULTSORT:Grenesko, Donald}} [[Category:Living people]] [[Category:Chicago Cubs executives]] [[Category:Major League Baseball team presidents]] [[Category:American chief financial officers]] [[Category:American chief executives of professional sports organizations]] [[Category:Year of birth missing (living people)]]

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