The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F COVER PAGE

OMB APPROVAL
OMB Number: 3235-0006
Expires: July 31, 2015
Estimated average burden
hours per response: 23.8

Report for the Calendar Year or Quarter Ended: 03-31-2022
Check here if Amendment   Amendment Number:
This Amendment (Check only one.):   is a restatement.
  adds new holdings entries.
Institutional Investment Manager Filing this Report:
Name: united american securities inc. (d/b/a uas asset management)
Address: 441 LEXINGTON AVENUE #1220
NEW YORK , NY10017
Form 13F File Number: 028-11585

The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:
Name: Ali Granmayeh
Title: CCO
Phone: 2129835822
Signature, Place, and Date of Signing:
Ali Granmayeh New York , NY 05-16-2022
[Signature] [City, State] [Date]
Report Type (Check only one.):
X 13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager are reported in this report.)
  13F NOTICE. (Check here if no holdings reported are in this report, and all holdings are reported by other reporting manager(s).)
  13F COMBINATION REPORT. (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)
Form 13F Summary Page
Report Summary:
Number of Other Included Managers: 1
Form 13F Information Table Entry Total: 14
Form 13F Information Table Value Total: 450,896
(thousands)
List of Other Managers Reporting for this Manager:
[If there are no entries in this list, omit this section.]
Form 13F File Number Name
028-21999 KITTY HAWK INVESTMENT PARTNERS LP

List of Other Included Managers:
Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.
[If there are no entries in this list, state “NONE” and omit the column headings and list entries.]
No. Form 13F File Number Name
1 028-21999 KITTY HAWK INVESTMENT PARTNERS LP


SEC FORM 13F-HR

The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE

OMB APPROVAL
OMB Number: 3235-0006
Expires: July 31, 2015
Estimated average burden
hours per response: 23.8

COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
ALPHABET INC CAP STK CL A 02079K305 712 256 SH SOLE 0 256 0
AMAZON COM INC COM 023135106 114,561 35,142 SH SOLE 1 0 35,142 0
APPLE INC COM 037833100 89,450 512,284 SH SOLE 1 0 512,284 0
BERKSHIRE HATHAWAY INC DEL CL A 084670108 529 1 SH SOLE 0 1 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 118,670 336,261 SH SOLE 1 0 336,261 0
CARRIER GLOBAL CORPORATION COM 14448C104 1,152 25,125 SH SOLE 1 0 25,125 0
CATERPILLAR INC COM 149123101 334 1,500 SH SOLE 1 0 1,500 0
COSTCO WHSL CORP NEW COM 22160K105 17,409 30,231 SH SOLE 1 0 30,231 0
MICROSOFT CORP COM 594918104 88,669 287,596 SH SOLE 1 0 287,596 0
NIKE INC CL B 654106103 404 3,000 SH SOLE 1 0 3,000 0
NORWEGIAN CRUISE LINE HLDG L SHS G66721104 1,313 60,000 SH SOLE 1 0 60,000 0
NVIDIA CORPORATION COM 67066G104 1,364 5,000 SH SOLE 1 0 5,000 0
TESLA INC COM 88160R101 15,932 14,785 SH SOLE 1 0 14,785 0
UNITY SOFTWARE INC COM 91332U101 397 4,000 SH SOLE 1 0 4,000 0