13F-HR | SEC Filings Hub

Filing metadata

Accession number: 0000909012-22-000052
Form type: 13F-HR
Filer: American Research & Management Co.
CIK: CIK 1506796
Filed: Apr 21, 2022
Reporting period: Mar 31, 2022
Description: Institutional holdings

Documents

0000909012-22-000052-index.htm

Complete submission

0000909012-22-000052.txt

directory listing

Filed by

American Research & Management Co.