HOLLYFRONTIER CORP Form SC 13D: Beneficial ownership report (active)
Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.
- 2021-08-12: Form SC 13D/A; Description SC 13D/A; Document d35246dsc13da.htm.
- 2019-02-15: Form SC 13D/A; Description AMENDMENT #4 TO SCHEDULE 13D; Document d702274dsc13da.htm.
- 2018-07-18: Form SC 13D/A; Description AMENDMENT #3 TO SCHEDULE 13D; Document d551154dsc13da.htm.
- 2018-02-23: Form SC 13D/A; Description SC 13D/AMENDMENT NO. 10; Document d531158dsc13da.htm.
| Filed | Form | Period of report | Description | Document |
|---|---|---|---|---|
| 2021-08-12 | SC 13D/A | SC 13D/A | d35246dsc13da.htm | |
| 2019-02-15 | SC 13D/A | AMENDMENT #4 TO SCHEDULE 13D | d702274dsc13da.htm | |
| 2018-07-18 | SC 13D/A | AMENDMENT #3 TO SCHEDULE 13D | d551154dsc13da.htm | |
| 2018-02-23 | SC 13D/A | SC 13D/AMENDMENT NO. 10 | d531158dsc13da.htm | |
| 2017-11-01 | SC 13D/A | SC 13D/A | d449326dsc13da.htm | |
| 2017-10-20 | SC 13D/A | SCHEDULE 13D (AMENDMENT NO. 8) | d479253dsc13da.htm | |
| 2017-05-05 | SC 13D/A | SCHEDULE 13D (AMENDMENT NO. 7) | d257160dsc13da.htm | |
| 2016-10-11 | SC 13D/A | SCHEDULE 13D (AMENDMENT NO. 6) | d193147dsc13da.htm | |
| 2012-08-06 | SC 13D/A | Beneficial ownership report (active) | a13d-unev.htm | |
| 2011-12-21 | SC 13D/A | AMENDMENT NO. 3 TO SCHEDULE 13D | d274480dsc13da.htm | |
| 2011-09-06 | SC 13D/A | SCHEDULE 13D/A | c22183sc13dza.htm | |
| 2011-07-05 | SC 13D/A | SCHEDULE 13D/A | c19624sc13dza.htm | |
| 2011-05-20 | SC 13D | SCHEDULE 13D | c17672sc13d.htm | |
| 2011-02-25 | SC 13D/A | SC 13D/A | d79964sc13dza.htm | |
| 2011-01-14 | SC 13D/A | SC 13D/A | d78935sc13dza.htm | |
| 2009-08-28 | SC 13D | SC 13D | d68997sc13d.htm | |
| 2003-09-09 | SC 13D/A | AMENDMENT NO. 1 TO SCHEDULE 13D | d08896a1sc13dza.txt | |
| 2003-08-22 | SC 13D/A | Beneficial ownership report (active) | fto13da0308.htm | |
| 2003-04-09 | SC 13D | SCHEDULE 13D | d04795sc13d.txt | |
| 2003-04-09 | SC 13D | SCHEDULE 13D | fto13d0304a.htm | |
| 1998-09-04 | SC 13D/A | AMENDMENT NO. 1 TO SCHEDULE 13D | ||
| 1998-04-22 | SC 13D | SCHEDULE 13D | ||
| 1995-07-17 | SC 13D/A | SCHEDULE 13D AMENDMENT NO. 3 | ||
| 1995-07-14 | SC 13D/A | SCHEDULE 13D AMENDMENT NO. 1 | ||
| 1995-07-14 | SC 13D/A | AMENDMENT NO.2 TO SCHEDULE 13D |