HollyFrontier Corp — DEFA14A

HollyFrontier Corp of DALLAS, TX filed a DEFA14A with the SEC on 2021-09-22. Industry: Petroleum Refining.

Filing

Filed: 2021-09-22
Form: DEFA14A
Accession: 0001193125-21-279448
Registrant: HollyFrontier Corp
CIK: 0000048039
Industry (SIC): Petroleum Refining (2911)
State of incorporation: DE
Location: DALLAS, TX

Documents (1)

Seq	Type	Description
1	DEFA14A	DEFA14A

Filing timeline for this registrant (57)

Showing 12 of 57 filings.

Filed	Form
2021-11-30	DEFA14A
2021-10-29	DEFM14A
2021-09-22	DEFA14A
2021-09-22	DEFA14A
2021-09-17	PREM14A
2021-08-04	DEFA14A
2021-08-03	DEFA14A
2021-03-25	DEFA14A
2021-03-25	DEF 14A
2020-04-09	DEFA14A
2020-03-26	DEFA14A
2020-03-26	DEF 14A

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