ARMSTRONG HENRY H ASSOCIATES INC

Registered adviser

CIK

1056827

Location

PITTSBURGH, PA

Portfolio Value

Mid $1,117,855,255

Diversification

Moderately concentrated

Filing Date

Global Rank

#2,372 / 8,807 ▼ 257 · as of Jun 2026

Top Industry

Insurance - Diversified 34.7%

Period ended 20 days ago

Filed Oct 7, 2026 · 13d

27 quarters · since Mar 2020

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type

Registered adviser

Form ADV roster, Oct 1, 2026

Form ADV adviser

CRD 105510

Roster of Oct 1, 2026

Regulatory AUM

$1,231,153,237

Main clients

Individuals and high net worth (99% of AUM)

Private funds on Schedule D 7.B.(1)

As filed Feb 23, 2024; SEC's bulk Form ADV archive ends with 2024 filings.

No private funds listed.

Form ADV history

Monthly rosters from Dec 2019; each row is a run with the same figures, newest first.

Rosters	Regulatory AUM	Main clients
Mar 2026 to Oct 2026	$1,231,153,237	Individuals and high net worth (99%)
Mar 2025 to Feb 2026	$1,143,301,792	Individuals and high net worth (99%)
Mar 2024 to Feb 2025	$1,064,772,153	Individuals and high net worth (99%)
May 2023 to Feb 2024	$902,996,113	Individuals and high net worth (99%)
Apr 2023	$902,996,113	Individuals and high net worth (99%)
Apr 2022 to Mar 2023	$1,055,257,923	Individuals and high net worth (99%)

3 earlier changes not shown.

Portfolio style

Measured from the filed 13F common-share book for Jun 30, 2026, the newest measured quarter, never from the firm's own description.

Style

Concentrated

The top 10 positions are 90.1% of the book (60%+)

Turnover

Low turnover

2.6% over the last four quarters (under 30%)

Horizon

Long horizon

Value-weighted holding period 25.3 quarters (12+), a floor since 95.7% of the book was already held when coverage starts

Closest benchmark: the S&P 500 as of 2026-06-30, active share 81.0%; sector active share 36.1% against the combined 13F book's sector weights.

Over time 26 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

View clone backtest

Portfolio Concentration

61 tracked positions · as of Sep 30, 2026 · Δ vs Jun 30, 2026

Top Position

34.5%

−3.3 pts

Top 5

81.0%

+1.5 pts

Top 10

90.9%

+0.8 pts

HHI

2,140

Moderately concentrated+48

Portfolio Trend

27 quarters · across all stocks

Sector Breakdown

As of Sep 30, 2026

Sector	% Portfolio	Value	Positions
Financial Services	41.3%	$461,698,713	6
Technology	32.7%	$365,225,476	10
Healthcare	9.2%	$103,224,187	12
Consumer Defensive	5.8%	$64,726,823	6
Industrials	4.5%	$50,543,641	10
Communication Services	3.7%	$40,908,897	4
Basic Materials	1.5%	$16,472,400	2
Consumer Cyclical	0.6%	$6,954,023	3
Unclassified	0.6%	$6,715,847	6
Energy	0.1%	$1,385,248	2

Last Quarter's Activity

Export CSV

Sep 30, 2026 vs Jun 30, 2026

Added To

Positions the filer increased

12 positions

Ticker	Company	Δ Shares	Shares	Value
FAST	Fastenal Co	+18,754	288,897	$14,309,068
RBA	Rb Global Inc.	+12,317	53,226	$4,332,064
DCI	DONALDSON Co INC	+2,915	18,795	$1,635,916
APD	Air Products & Chemicals, Inc.	+2,021	57,810	$16,084,476
MCO	Moodys Corp /De/	+1,919	146,162	$66,376,549
ASML	Asml Holding NV	+1,161	9,516	$17,239,851
UNP	Union Pacific Corp	+893	69,594	$18,938,615
MA	Mastercard Inc	+205	12,645	$6,973,338
ADSK	Autodesk, Inc.	+200	4,883	$1,020,547
GOOG	Alphabet Inc.	+35	92,723	$31,594,435
VTI	VANGUARD TOTAL STOCK MARKET INDEX FUND	+8	4,457	$1,667,987
SPY	Spdr S&P 500 ETF Trust	+1	4,742	$3,616,391
No positions match the current search.

Trimmed

Positions the filer reduced

22 positions

Ticker	Company	Δ Shares	Shares	Value
MDT	Medtronic plc	−7,835	86,445	$7,459,339
KO	Coca Cola Co	−4,751	122,971	$10,585,343
PG	PROCTER & GAMBLE Co	−3,730	346,080	$50,278,502
MSFT	Microsoft Corp	−2,998	619,403	$317,691,798
BRK-B	Berkshire Hathaway Inc	−2,616	372,534	$185,503,305
ABT	Abbott Laboratories	−1,543	16,750	$1,655,402
PEP	Pepsico Inc	−797	15,339	$1,943,758
ABBV	AbbVie Inc.	−596	17,027	$4,454,092
ADP	Automatic Data Processing Inc	−590	13,275	$3,425,746
MKC	Mccormick & Co Inc	−505	6,798	$315,427
AAPL	Apple Inc.	−448	56,200	$18,715,724
WAT	Waters Corp /De/	−303	3,375	$1,482,941
TJX	Tjx Companies Inc /De/	−300	7,382	$976,712
BHC	Bausch Health Companies Inc.	−280	43,935	$256,141
JNJ	Johnson & Johnson	−237	322,616	$85,409,359
WMT	Walmart Inc.	−170	6,051	$628,819
PFE	Pfizer Inc	−100	15,294	$436,184
VOO	VANGUARD 500 INDEX FUND	−90	328	$229,882
HD	Home Depot, Inc.	−80	10,736	$3,054,284
GOOGL	Alphabet Inc.	−50	24,255	$8,345,660
DIS	Walt Disney Co	−40	8,999	$943,995
BRK-A	Berkshire Hathaway Inc	−2	268	$200,197,340
No positions match the current search.

New Positions

Positions the filer opened this quarter

1 positions

Ticker	Company	Shares	Value	Open
XOM	ExxonMobil Holdings Corp	6,657	$1,083,426
No positions match the current search.

Sold Out

Positions the filer fully exited

4 positions

Ticker	Company	Shares	Value
UBER	Uber Technologies, Inc	25,470	$1,837,915
TSLA	Tesla, Inc.	534	$224,600
CSCO	Cisco Systems, Inc.	1,897	$222,821
STM	STMicroelectronics N.V.	2,950	$220,925
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

61 tracked positions · $1,117,855,255 total · filing declares 61 positions · $1,118,174,926 · as of Sep 30, 2026

All sectors Basic Materials Communication Services Consumer Cyclical Consumer Defensive Energy Financial Services Healthcare Industrials Technology

Showing 1–50 of 61 positions by value · page 1 of 2

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
MSFT	Microsoft Corp Technology	Reduced	619,403	-2,998	$317,691,798	+36.8%	28.42%
BRK-A	Berkshire Hathaway Inc Financial Services	Reduced	268	-2	$200,197,340	−1.0%	17.91%
BRK-B	Berkshire Hathaway Inc Financial Services	Reduced	372,534	-2,616	$185,503,305	−1.2%	16.59%
JNJ	Johnson & Johnson Healthcare	Reduced	322,616	-237	$85,409,359	+4.2%	7.64%
MCO	Moodys Corp /De/ Financial Services	Added	146,162	+1,919	$66,376,549	+1.6%	5.94%
PG	PROCTER & GAMBLE Co Consumer Defensive	Reduced	346,080	-3,730	$50,278,502	−2.0%	4.50%
GOOG	Alphabet Inc. Communication Services	Added	92,723	+35	$31,594,435	−3.5%	2.83%
UNP	Union Pacific Corp Industrials	Added	69,594	+893	$18,938,615	+1.3%	1.69%
AAPL	Apple Inc. Technology	Reduced	56,200	-448	$18,715,724	+14.2%	1.67%
ASML	Asml Holding NV Technology	Added	9,516	+1,161	$17,239,851	+3.7%	1.54%
APD	Air Products & Chemicals, Inc. Basic Materials	Added	57,810	+2,021	$16,084,476	−1.7%	1.44%
FAST	Fastenal Co Industrials	Added	288,897	+18,754	$14,309,068	+10.3%	1.28%
KO	Coca Cola Co Consumer Defensive	Reduced	122,971	-4,751	$10,585,343	+2.0%	0.95%
GOOGL	Alphabet Inc. Communication Services	Reduced	24,255	-50	$8,345,660	−3.9%	0.75%
MDT	Medtronic plc Healthcare	Reduced	86,445	-7,835	$7,459,339	+1.1%	0.67%
MA	Mastercard Inc Financial Services	Added	12,645	+205	$6,973,338	+9.1%	0.62%
ABBV	AbbVie Inc. Healthcare	Reduced	17,027	-596	$4,454,092	+0.4%	0.40%
RBA	Rb Global Inc. Industrials	Added	53,226	+12,317	$4,332,064	−9.1%	0.39%
GE	General Electric Co Industrials	Held	12,043	0	$3,760,908	−16.4%	0.34%
SPY	Spdr S&P 500 ETF Trust	Added	4,742	+1	$3,616,391	+2.1%	0.32%
NVDA	Nvidia Corp Technology	Held	15,372	0	$3,510,657	+14.1%	0.31%
ADP	Automatic Data Processing Inc Technology	Reduced	13,275	-590	$3,425,746	+10.3%	0.31%
HD	Home Depot, Inc. Consumer Cyclical	Reduced	10,736	-80	$3,054,284	−19.9%	0.27%
AMZN	Amazon Com Inc Consumer Cyclical	Held	11,732	0	$2,923,027	+4.5%	0.26%
GEV	GE Vernova Inc. Industrials	Held	2,600	0	$2,471,274	−19.1%	0.22%
J	Jacobs Solutions Inc. Industrials	Held	17,081	0	$2,310,546	+7.4%	0.21%
V	Visa Inc. Financial Services	Held	6,257	0	$2,248,327	+4.7%	0.20%
PEP	Pepsico Inc Consumer Defensive	Reduced	15,339	-797	$1,943,758	−11.0%	0.17%
MU	Micron Technology Inc Technology	Held	1,800	0	$1,917,198	−7.7%	0.17%
MMM	3M Co Industrials	Held	11,500	0	$1,887,725	+1.4%	0.17%
VTI	VANGUARD TOTAL STOCK MARKET INDEX FUND	Added	4,457	+8	$1,667,987	+1.3%	0.15%
ABT	Abbott Laboratories Healthcare	Reduced	16,750	-1,543	$1,655,402	−0.3%	0.15%
DCI	DONALDSON Co INC Industrials	Added	18,795	+2,915	$1,635,916	+14.8%	0.15%
WAT	Waters Corp /De/ Healthcare	Reduced	3,375	-303	$1,482,941	+7.5%	0.13%
XOM	ExxonMobil Holdings Corp Energy	NEW	6,657	NEW	$1,083,426	NEW	0.10%
CDNA	CareDx, Inc. Healthcare	Held	16,036	0	$1,042,340	+128.1%	0.09%
ADSK	Autodesk, Inc. Technology	Added	4,883	+200	$1,020,547	+12.1%	0.09%
TJX	Tjx Companies Inc /De/ Consumer Cyclical	Reduced	7,382	-300	$976,712	−16.1%	0.09%
COST	Costco Wholesale Corp /New Consumer Defensive	Held	1,071	0	$974,974	−2.7%	0.09%
DIS	Walt Disney Co Communication Services	Reduced	8,999	-40	$943,995	+8.5%	0.08%
VO	VANGUARD MID-CAP INDEX FUND	Held	8,992	0	$705,152	−2.7%	0.06%
GLW	Corning Inc /Ny Technology	Held	4,300	0	$661,168	−39.8%	0.06%
WMT	Walmart Inc. Consumer Defensive	Reduced	6,051	-170	$628,819	−10.8%	0.06%
EMR	Emerson Electric Co Industrials	Held	3,874	0	$600,857	+8.3%	0.05%
AMD	Advanced Micro Devices Inc Technology	Held	900	0	$550,584	+5.3%	0.05%
VB	Vanguard Index Funds	Held	1,745	0	$496,435	−6.1%	0.04%
IBM	International Business Machines Corp Technology	Held	2,238	0	$492,203	−21.8%	0.04%
PFE	Pfizer Inc Healthcare	Reduced	15,294	-100	$436,184	+17.7%	0.04%
SCHW	Schwab Charles Corp Financial Services	Held	4,091	0	$399,854	+5.9%	0.04%
SHW	Sherwin Williams Co Basic Materials	Held	1,200	0	$387,924	−6.1%	0.03%

Showing the top 50 of 61 positions. Create a free account to see every position, past quarters, search, filters and CSV export.

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.