# EDGAR Filing Document

**Accession Number:** 0001056827
**File Stem:** 0001056827-25-000006
**Filing Date:** 2025-10
**Character Count:** 11749
**Document Hash:** 1518dce99814354c70b5f6d66e63633b
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001056827-25-000006.hdr.sgml**: 20251002

**ACCESSION NUMBER**: 0001056827-25-000006

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

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20250930

**FILED AS OF DATE**: 20251002

**DATE AS OF CHANGE**: 20251002

**EFFECTIVENESS DATE**: 20251002

**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:** 251367495

**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:** 09-30-2025

**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  10-02-2025<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:** 63

**Form 13F Information Table Value Total:** $1105540296

      (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 |  | 334593984 | 645997 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 645997 |
| BERKSHIRE HATHAWAY INC DEL | CL A | 084670108 |  | 214192800 | 284 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 284 |
| BERKSHIRE HATHAWAY INC DEL | CL B NEW | 084670702 |  | 185210874 | 368403 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 368403 |
| MOODYS CORP | COM | 615369105 |  | 70822773 | 148637 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 148637 |
| JOHNSON  JOHNSON | COM | 478160104 |  | 60782768 | 327811 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 327811 |
| PROCTER AND GAMBLE CO | COM | 742718109 |  | 56372591 | 366890 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 366890 |
| ALPHABET INC | CAP STK CL C | 02079K107 |  | 23287936 | 95619 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 95619 |
| AIR PRODS  CHEMS INC | COM | 009158106 |  | 18034777 | 66129 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 66129 |
| UNION PAC CORP | COM | 907818108 |  | 15581313 | 65919 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 65919 |
| APPLE INC | COM | 037833100 |  | 15108621 | 59336 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 59336 |
| FASTENAL CO | COM | 311900104 |  | 11415915 | 232788 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 232788 |
| MEDTRONIC PLC | SHS | G5960L103 |  | 10298040 | 108127 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 108127 |
| COCA COLA CO | COM | 191216100 |  | 9006555 | 135805 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 135805 |
| ALPHABET INC | CAP STK CL A | 02079K305 |  | 8605011 | 35397 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 35397 |
| MASTERCARD INCORPORATED | CL A | 57636Q104 |  | 7994625 | 14055 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 14055 |
| ASML HOLDING N V | N Y REGISTRY SHS | N07059210 |  | 4467825 | 4615 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 4615 |
| HOME DEPOT INC | COM | 437076102 |  | 4419813 | 10908 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 10908 |
| AUTOMATIC DATA PROCESSING IN | COM | 053015103 |  | 4311515 | 14690 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 14690 |
| ABBVIE INC | COM | 00287Y109 |  | 4107752 | 17741 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 17741 |
| GE AEROSPACE | COM NEW | 369604301 |  | 3622776 | 12043 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 12043 |
| SPDR S 500 ETF TR | TR UNIT | 78462F103 |  | 3113270 | 4673 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 4673 |
| ABBOTT LABS | COM | 002824100 |  | 2985925 | 22293 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 22293 |
| NVIDIA CORPORATION | COM | 67066G104 |  | 2868108 | 15372 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 15372 |
| AMAZON COM INC | COM | 023135106 |  | 2597953 | 11832 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 11832 |
| JACOBS SOLUTIONS INC | COM | 46982L108 |  | 2559759 | 17081 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 17081 |
| PEPSICO INC | COM | 713448108 |  | 2402508 | 17107 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 17107 |
| VISA INC | COM CL A | 92826C839 |  | 2268471 | 6645 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 6645 |
| 3M CO | COM | 88579Y101 |  | 1799002 | 11593 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 11593 |
| GE VERNOVA INC | COM | 36828A101 |  | 1781981 | 2898 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 2898 |
| RB GLOBAL INC | COM | 74935Q107 |  | 1526793 | 14090 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 14090 |
| UBER TECHNOLOGIES INC | COM | 90353T100 |  | 1487185 | 15180 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 15180 |
| VANGUARD INDEX FDS | TOTAL STK MKT | 922908769 |  | 1460029 | 4449 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 4449 |
| WATERS CORP | COM | 941848103 |  | 1279590 | 4268 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 4268 |
| TJX COS INC NEW | COM | 872540109 |  | 1134206 | 7847 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 7847 |
| AUTODESK INC | COM | 052769106 |  | 1103268 | 3473 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 3473 |
| DISNEY WALT CO | COM | 254687106 |  | 1037256 | 9059 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 9059 |
| COSTCO WHSL CORP NEW | COM | 22160K105 |  | 991350 | 1071 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 1071 |
| EXXON MOBIL CORP | COM | 30231G102 |  | 930977 | 8257 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 8257 |
| MCCORMICK  CO INC | COM NON VTG | 579780206 |  | 812823 | 12148 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 12148 |
| BERKSHIRE HATHAWAY INC DEL | CL B NEW | 084670702 |  | 744056 | 1480 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 1480 |
| VANGUARD INDEX FDS | MID CAP ETF | 922908629 |  | 660328 | 2248 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 2248 |
| WALMART INC | COM | 931142103 |  | 655874 | 6364 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 6364 |
| INTERNATIONAL BUSINESS MACHS | COM | 459200101 |  | 631475 | 2238 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 2238 |
| SCHWAB CHARLES CORP | COM | 808513105 |  | 581508 | 6091 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 6091 |
| EMERSON ELEC CO | COM | 291011104 |  | 555417 | 4234 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 4234 |
| NOVO-NORDISK A S | ADR | 670100205 |  | 455462 | 8208 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 8208 |
| VANGUARD INDEX FDS | SMALL CP ETF | 922908751 |  | 443719 | 1745 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 1745 |
| RTX CORPORATION | COM | 75513E101 |  | 439744 | 2628 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 2628 |
| SHERWIN WILLIAMS CO | COM | 824348106 |  | 415512 | 1200 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 1200 |
| PFIZER INC | COM | 717081103 |  | 392240 | 15394 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 15394 |
| CORNING INC | COM | 219350105 |  | 365034 | 4450 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 4450 |
| ISHARES TR | CORE S ETF | 464287200 |  | 342682 | 512 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 512 |
| MICRON TECHNOLOGY INC | COM | 595112103 |  | 301176 | 1800 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 1800 |
| BAUSCH HEALTH COS INC | COM | 071734107 |  | 285187 | 44215 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 44215 |
| GE HEALTHCARE TECHNOLOGIES I | COMMON STOCK | 36266G107 |  | 262024 | 3489 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 3489 |
| ORACLE CORP | COM | 68389X105 |  | 259304 | 922 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 922 |
| CHEVRON CORP NEW | COM | 166764100 |  | 245048 | 1578 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 1578 |
| CAREDX INC | COM | 14167L103 |  | 233164 | 16036 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 16036 |
| SOLVENTUM CORP | COM SHS | 83444M101 |  | 231775 | 3175 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 3175 |
| DONALDSON INC | COM | 257651109 |  | 229180 | 2800 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 2800 |
| VANGUARD INDEX FDS | S 500 ETF SHS | 922908363 |  | 205760 | 336 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 336 |
| TESLA INC | COM | 88160R101 |  | 204572 | 460 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 460 |
| NEXTDOOR HOLDINGS INC | COM CL A | 65345M108 |  | 21337 | 10209 | SH |  | SOLE | Henry H. Armstrong Associates Inc | 0 | 0 | 10209 |

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