13F-HR | SEC Filings Hub

Filing metadata

Accession number: 0001398344-21-003564
Form type: 13F-HR
Filer: Punch Card Management L.P.
CIK: CIK 1631664
Filed: Feb 16, 2021
Reporting period: Dec 31, 2020
Description: Institutional holdings

Documents

0001398344-21-003564-index.htm

Complete submission

0001398344-21-003564.txt

directory listing

Filed by

Punch Card Management L.P.