# EDGAR Filing Document

**Accession Number:** 0001056827
**File Stem:** 0001056827-26-000002
**Filing Date:** 2026-4
**Character Count:** 9617
**Document Hash:** cba61513c0e288b0212a537a78f31dd5
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001056827-26-000002.hdr.sgml**: 20260407

**ACCESSION NUMBER**: 0001056827-26-000002

**CONFORMED SUBMISSION TYPE**: 13F-HR

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20260331

**FILED AS OF DATE**: 20260407

**DATE AS OF CHANGE**: 20260407

**EFFECTIVENESS DATE**: 20260407

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ARMSTRONG HENRY H ASSOCIATES INC
- **CENTRAL INDEX KEY:** 0001056827

**ORGANIZATION NAME:**
- **EIN:** 251440756

**FILING VALUES:**
- **FORM TYPE:** 13F-HR
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 028-07012
- **FILM NUMBER:** 26843256

**BUSINESS ADDRESS:**
- **STREET 1:** ONE GATEWAY CENTER
- **STREET 2:** 420 FT. DUQUESNE BLVD. STE 1425
- **CITY:** PITTSBURGH
- **STATE:** PA
- **ZIP:** 15222
- **BUSINESS PHONE:** 4124711551

**MAIL ADDRESS:**
- **STREET 1:** ONE GATEWAY CENTER
- **STREET 2:** 420 FT. DUQUESNE BLVD. STE 1425
- **CITY:** PITTSBURGH
- **STATE:** PA
- **ZIP:** 15222

### FORM 13F COVER PAGE

**Report for the Calendar Year or Quarter Ended:** 03-31-2026

**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:** ARMSTRONG HENRY H ASSOCIATES INC<br>**Address:** ONE GATEWAY CENTER<br>420 FT. DUQUESNE BLVD. STE 1425<br>PITTSBURGH, PA 15222

**Form 13F File Number:** 028-07012

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:** James McKay Armstrong<br>**Title:** President<br>**Phone:** 412-471-1551

**Signature, Place, and Date of Signing:**

James McKay Armstrong  Pittsburgh, PA  04-07-2026<br>[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 are reported 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:** 0

**Form 13F Information Table Entry Total:** 62

**Form 13F Information Table Value Total:** $981382214

      (round to nearest dollar)

**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.]

**NONE**

### FORM 13F INFORMATION TABLE

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| NAME OF ISSUER | TITLE OF CLASS | CUSIP | FIGI | VALUE (x$1000) | SHRS OR PRN AMT | SH/PRN | PUT/CALL | INVESTMENT DISCRETION | OTHER MANAGER | VOTING AUTHORITY | VOTING AUTHORITY | VOTING AUTHORITY |
| NAME OF ISSUER | TITLE OF CLASS | CUSIP | FIGI | VALUE (x$1000) | SHRS OR PRN AMT | SH/PRN | PUT/CALL | INVESTMENT DISCRETION | OTHER MANAGER | SOLE | SHARED | NONE |
| MICROSOFT CORP | COM | 594918104 |  | 232622844 | 628422 | SH |  | SOLE |  | 0 | 0 | 628422 |
| BERKSHIRE HATHAWAY INC DEL | CL A | 084670108 |  | 196770360 | 274 | SH |  | SOLE |  | 0 | 0 | 274 |
| BERKSHIRE HATHAWAY INC DEL | CL B NEW | 084670702 |  | 175976569 | 367230 | SH |  | SOLE |  | 0 | 0 | 367230 |
| JOHNSON  JOHNSON | COM | 478160104 |  | 78244378 | 320096 | SH |  | SOLE |  | 0 | 0 | 320096 |
| MOODYS CORP | COM | 615369105 |  | 62872459 | 144120 | SH |  | SOLE |  | 0 | 0 | 144120 |
| PROCTER  GAMBLE CO | COM | 742718109 |  | 51013255 | 353180 | SH |  | SOLE |  | 0 | 0 | 353180 |
| ALPHABET INC | CAP STK CL C | 02079K107 |  | 26659351 | 92935 | SH |  | SOLE |  | 0 | 0 | 92935 |
| UNION PAC CORP | COM | 907818108 |  | 16205191 | 66792 | SH |  | SOLE |  | 0 | 0 | 66792 |
| APPLE INC | COM | 037833100 |  | 14821584 | 58401 | SH |  | SOLE |  | 0 | 0 | 58401 |
| AIR PRODUCTS AND CHEMICALS I | COM | 009158106 |  | 14699811 | 50604 | SH |  | SOLE |  | 0 | 0 | 50604 |
| FASTENAL CO | COM | 311900104 |  | 12215920 | 263274 | SH |  | SOLE |  | 0 | 0 | 263274 |
| ASML HLDG NV | N Y REGISTRY SHS | N07059210 |  | 10298669 | 7797 | SH |  | SOLE |  | 0 | 0 | 7797 |
| COCA COLA CO | COM | 191216100 |  | 9814764 | 129057 | SH |  | SOLE |  | 0 | 0 | 129057 |
| MEDTRONIC PLC | SHS | G5960L103 |  | 8631095 | 99609 | SH |  | SOLE |  | 0 | 0 | 99609 |
| ALPHABET INC | CAP STK CL A | 02079K305 |  | 7042920 | 24492 | SH |  | SOLE |  | 0 | 0 | 24492 |
| MASTERCARD INCORPORATED | CL A | 57636Q104 |  | 6520563 | 13050 | SH |  | SOLE |  | 0 | 0 | 13050 |
| ABBVIE INC | COM | 00287Y109 |  | 3854576 | 17723 | SH |  | SOLE |  | 0 | 0 | 17723 |
| HOME DEPOT INC | COM | 437076102 |  | 3557275 | 10816 | SH |  | SOLE |  | 0 | 0 | 10816 |
| GE AEROSPACE | COM NEW | 369604301 |  | 3417443 | 12043 | SH |  | SOLE |  | 0 | 0 | 12043 |
| STATE STR SPDR S 500 ETF T | TR UNIT | 78462F103 |  | 3083859 | 4742 | SH |  | SOLE |  | 0 | 0 | 4742 |
| AUTOMATIC DATA PROCESSING IN | COM | 053015103 |  | 2817091 | 13865 | SH |  | SOLE |  | 0 | 0 | 13865 |
| NVIDIA CORPORATION | COM | 67066G104 |  | 2680877 | 15372 | SH |  | SOLE |  | 0 | 0 | 15372 |
| RB GLOBAL INC | COM | 74935Q107 |  | 2591217 | 27034 | SH |  | SOLE |  | 0 | 0 | 27034 |
| UBER TECHNOLOGIES INC | COM | 90353T100 |  | 2570779 | 35740 | SH |  | SOLE |  | 0 | 0 | 35740 |
| PEPSICO INC | COM | 713448108 |  | 2505760 | 16136 | SH |  | SOLE |  | 0 | 0 | 16136 |
| AMAZON COM INC | COM | 023135106 |  | 2443424 | 11732 | SH |  | SOLE |  | 0 | 0 | 11732 |
| GE VERNOVA INC | COM | 36828A101 |  | 2269540 | 2600 | SH |  | SOLE |  | 0 | 0 | 2600 |
| JACOBS SOLUTIONS INC | COM | 46982L108 |  | 2174070 | 17081 | SH |  | SOLE |  | 0 | 0 | 17081 |
| VISA INC | COM CL A | 92826C839 |  | 1894139 | 6267 | SH |  | SOLE |  | 0 | 0 | 6267 |
| ABBOTT LABORATORIES | COM | 002824100 |  | 1888410 | 18393 | SH |  | SOLE |  | 0 | 0 | 18393 |
| 3M CO | COM | 88579Y101 |  | 1670145 | 11500 | SH |  | SOLE |  | 0 | 0 | 11500 |
| VANGUARD INDEX FDS | TOTAL STK MKT | 922908769 |  | 1427284 | 4449 | SH |  | SOLE |  | 0 | 0 | 4449 |
| EXXON MOBIL CORP | COM | 30231G102 |  | 1299087 | 7657 | SH |  | SOLE |  | 0 | 0 | 7657 |
| TJX COS INC NEW | COM | 872540109 |  | 1225219 | 7672 | SH |  | SOLE |  | 0 | 0 | 7672 |
| WATERS CORP | COM | 941848103 |  | 1176906 | 3952 | SH |  | SOLE |  | 0 | 0 | 3952 |
| COSTCO WHOLESALE CORPORATION | COM | 22160K105 |  | 1067177 | 1071 | SH |  | SOLE |  | 0 | 0 | 1071 |
| DISNEY WALT CO | COM | 254687106 |  | 873107 | 9059 | SH |  | SOLE |  | 0 | 0 | 9059 |
| AUTODESK INC | COM | 052769106 |  | 831437 | 3473 | SH |  | SOLE |  | 0 | 0 | 3473 |
| WALMART INC | COM | 931142103 |  | 790918 | 6364 | SH |  | SOLE |  | 0 | 0 | 6364 |
| BERKSHIRE HATHAWAY INC DEL | CL B NEW | 084670702 |  | 697236 | 1455 | SH |  | SOLE |  | 0 | 0 | 1455 |
| VANGUARD INDEX FDS | MID CAP ETF | 922908629 |  | 645581 | 2248 | SH |  | SOLE |  | 0 | 0 | 2248 |
| MICRON TECHNOLOGY INC | COM | 595112103 |  | 608112 | 1800 | SH |  | SOLE |  | 0 | 0 | 1800 |
| CORNING INC | COM | 219350105 |  | 605067 | 4450 | SH |  | SOLE |  | 0 | 0 | 4450 |
| MCCORMICK  CO INC | COM NON VTG | 579780206 |  | 588282 | 11663 | SH |  | SOLE |  | 0 | 0 | 11663 |
| SCHWAB CHARLES CORP | COM | 808513105 |  | 572433 | 6091 | SH |  | SOLE |  | 0 | 0 | 6091 |
| INTERNATIONAL BUSINESS MACHS | COM | 459200101 |  | 542469 | 2238 | SH |  | SOLE |  | 0 | 0 | 2238 |
| EMERSON ELEC CO | COM | 291011104 |  | 528535 | 4034 | SH |  | SOLE |  | 0 | 0 | 4034 |
| VANGUARD INDEX FDS | SMALL CP ETF | 922908751 |  | 457051 | 1745 | SH |  | SOLE |  | 0 | 0 | 1745 |
| PFIZER INC | COM | 717081103 |  | 432264 | 15394 | SH |  | SOLE |  | 0 | 0 | 15394 |
| SHERWIN WILLIAMS CO | COM | 824348106 |  | 384660 | 1200 | SH |  | SOLE |  | 0 | 0 | 1200 |
| CHEVRON CORPORATION | COM | 166764100 |  | 326489 | 1578 | SH |  | SOLE |  | 0 | 0 | 1578 |
| RTX CORPORATION | COM | 75513E101 |  | 308255 | 1598 | SH |  | SOLE |  | 0 | 0 | 1598 |
| CAREDX INC | COM | 14167L103 |  | 278385 | 16036 | SH |  | SOLE |  | 0 | 0 | 16036 |
| ISHARES TR | CORE S ETF | 464287200 |  | 272389 | 417 | SH |  | SOLE |  | 0 | 0 | 417 |
| GE HEALTHCARE TECHNOLOGIES I | COMMON STOCK | 36266G107 |  | 248348 | 3489 | SH |  | SOLE |  | 0 | 0 | 3489 |
| NOVO-NORDISK A S | ADR | 670100205 |  | 244902 | 6664 | SH |  | SOLE |  | 0 | 0 | 6664 |
| BAUSCH HEALTH COS INC | COM | 071734107 |  | 238761 | 44215 | SH |  | SOLE |  | 0 | 0 | 44215 |
| DONALDSON INC | COM | 257651109 |  | 237636 | 2800 | SH |  | SOLE |  | 0 | 0 | 2800 |
| MERCK  CO INC | COM | 58933Y105 |  | 221695 | 1843 | SH |  | SOLE |  | 0 | 0 | 1843 |
| SOLVENTUM CORP | COM SHS | 83444M101 |  | 207328 | 3175 | SH |  | SOLE |  | 0 | 0 | 3175 |
| VANGUARD INDEX FDS | S 500 ETF SHS | 922908363 |  | 202570 | 339 | SH |  | SOLE |  | 0 | 0 | 339 |
| NEXTDOOR HOLDINGS INC | COM CL A | 65345M108 |  | 14293 | 10209 | SH |  | SOLE |  | 0 | 0 | 10209 |

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