Institutional Manager · CIK 0001056827
ARMSTRONG HENRY H ASSOCIATES INC
PITTSBURGH, PA · File #028-07012
Latest AUM
$1.08B
Positions
63
Top-10 Concentration
89.8%
Filings
15
Sector Allocation
Filing History
View all filings →- 13F HOLDINGS REPORTQ/E Dec 202563 pos · $1.08B
- 13F HOLDINGS REPORTQ/E Sep 202563 pos · $1.11B
- 13F HOLDINGS REPORTQ/E Jun 202558 pos · $1.06B
- 13F HOLDINGS REPORTQ/E Mar 202558 pos · $1.03B
- 13F HOLDINGS REPORTQ/E Dec 202458 pos · $1.00B
- 13F HOLDINGS REPORTQ/E Sep 202463 pos · $1.04B
- 13F HOLDINGS REPORT (Amended)Q/E Jun 202459 pos · $1.00B
- 13F HOLDINGS REPORTQ/E Jun 202456 pos · $1.03B
- 13F HOLDINGS REPORTQ/E Mar 202456 pos · $1.03B
- 13F HOLDINGS REPORTQ/E Dec 202357 pos · $875.4M
- 13F HOLDINGS REPORTQ/E Sep 202357 pos · $905.4M
- 13F HOLDINGS REPORT (Amended)Q/E Sep 202359 pos · $821.2M
- 13F HOLDINGS REPORT (Amended)Q/E Sep 202362 pos · $806.6M
- 13F HOLDINGS REPORTQ/E Jun 202359 pos · $821,249
- 13F HOLDINGS REPORTQ/E Mar 202362 pos · $806,568
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | MICROSOFT CORP | MSFT | 634,137 | $306.7M | 28.57% |
| 2 | BERKSHIRE HATHAWAY INC DEL | BRK-A | 279 | $210.6M | 19.62% |
| 3 | BERKSHIRE HATHAWAY INC DEL | BRK-A | 363,792 | $182.9M | 17.03% |
| 4 | MOODYS CORP | MCO | 144,224 | $73.7M | 6.86% |
| 5 | JOHNSON & JOHNSON | JNJ | 320,797 | $66.4M | 6.18% |
| 6 | PROCTER AND GAMBLE CO | 742718109 | 354,872 | $50.9M | 4.74% |
| 7 | ALPHABET INC | GOOG | 93,770 | $29.4M | 2.74% |
| 8 | APPLE INC | AAPL | 58,963 | $16.0M | 1.49% |
| 9 | UNION PAC CORP | UNP | 66,130 | $15.3M | 1.42% |
| 10 | AIR PRODS & CHEMS INC | AIIR | 49,632 | $12.3M | 1.14% |
| 11 | ALPHABET INC | GOOG | 34,647 | $10.8M | 1.01% |
| 12 | MEDTRONIC PLC | MDT | 99,929 | $9.6M | 0.89% |
| 13 | COCA COLA CO | KO | 131,357 | $9.2M | 0.86% |
| 14 | FASTENAL CO | FAST | 209,625 | $8.4M | 0.78% |
| 15 | MASTERCARD INCORPORATED | MA | 13,079 | $7.5M | 0.70% |
| 16 | ASML HOLDING N V | ASMLF | 6,497 | $7.0M | 0.65% |
| 17 | ABBVIE INC | ABBV | 17,741 | $4.1M | 0.38% |
| 18 | HOME DEPOT INC | HD | 10,896 | $3.7M | 0.35% |
| 19 | GE AEROSPACE | 369604301 | 12,043 | $3.7M | 0.35% |
| 20 | AUTOMATIC DATA PROCESSING IN | ADP | 14,090 | $3.6M | 0.34% |