A. O. Smith Corporation
A. O. Smith Corporation (AOS) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · AOS · as of Sep 30, 2025
Ownership Breakdown
646
Institutional Holders
▼ 10 vs Q2
$7.93B
Total Inst. Value
▲ $785.70M vs Q2
139.71M
Shares Outstanding
freeFloat 98.32%
106.04M
13F Shares Held
▼ 2.91M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
AOS largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC household appliances | 14.41M | 10.05% | 10.05% | $1.06T | Nov 7, 2025 | ▲ 182.9K |
BLACKROCK, INC. household appliances | 7.03M | 4.90% | 4.90% | $516.37B | Nov 12, 2025 | ▼ 91.9K |
STATE STREET CORP household appliances | 5.45M | 3.80% | 3.80% | $400.32B | Nov 14, 2025 | ▼ 434.5K |
IMPAX ASSET MANAGEMENT GROUP PLC household appliances | 4.85M | 3.38% | 3.38% | $356.05B | Nov 6, 2025 | ▲ 157.9K |
INVESCO LTD. household appliances | 4.52M | 3.15% | 3.15% | $331.96B | Nov 13, 2025 | ▼ 241.0K |
GEODE CAPITAL MANAGEMENT, LLC household appliances | 3.49M | 2.44% | 2.44% | $256.10B | Nov 12, 2025 | ▼ 17.2K |
AMERICAN CENTURY COMPANIES INC household appliances | 3.21M | 2.24% | 2.24% | $235.56B | Nov 12, 2025 | ▲ 1.13M |
FMR LLC household appliances | 3.05M | 2.13% | 2.13% | $223.87B | Nov 13, 2025 | ▲ 1.97M |
MORGAN STANLEY household appliances | 2.81M | 1.96% | 1.96% | $206.13B | May 27, 2026 | ▼ 99.7K |
FIRST TRUST ADVISORS LP household appliances | 2.51M | 1.75% | 1.75% | $184.18B | Nov 12, 2025 | ▲ 109.7K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
23
Increased
+7.45M shares0
New Positions
first time holders26
Decreased
−5.41M shares0
Sold Out
fully exitedNet shares change (top 50)
+2.04M
+7.45M / −5.41M
Net new holders
-3
0 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
AOS insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
8
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Saak Aaron W director | Apr 23, 2026 | Award | 2,296 | — | — | 2.3K | Form 4 ↗ |
Saak Aaron W director | Apr 13, 2026 | Award | 2,262 | — | — | 2.3K | Form 4 ↗ |
SMITH MARK D director | Apr 13, 2026 | Award | 2,262 | $66.32 | $150.0K | 118.5K | Form 4 ↗ |
MARTIN LOIS M director | Apr 13, 2026 | Award | 2,262 | $66.32 | $150.0K | 6.4K | Form 4 ↗ |
MAPES CHRISTOPHER L director | Apr 13, 2026 | Award | 2,262 | $66.32 | $150.0K | 8.7K | Form 4 ↗ |
Larsen Michael M director | Apr 13, 2026 | Award | 2,262 | — | — | 13.3K | Form 4 ↗ |
Kadri Ilham director | Apr 13, 2026 | Award | 2,262 | $66.32 | $150.0K | 23.6K | Form 4 ↗ |
HOLT VICTORIA M director | Apr 13, 2026 | Award | 2,262 | — | — | 13.3K | Form 4 ↗ |
Fister Todd W director | Apr 13, 2026 | Award | 2,262 | $66.32 | $150.0K | 6.4K | Form 4 ↗ |
Schuh Darrell W. SVP; President & GM Lochinvar | Mar 4, 2026 | Sale | 1,104 | $74.39 | $82.1K | 2.2K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
A. O. Smith Corporation (AOS) is primarily owned by institutional investors, who hold approximately 75.9% of total shares outstanding. Company insiders own approximately 1.68%, while retail and public investors account for the remaining 22.42%.
The largest institutional shareholder of A. O. Smith Corporation is VANGUARD GROUP INC, holding approximately 14.41 million shares — equal to 10.05% of outstanding shares — as of September 30, 2025.
A total of 646 institutional investors currently hold AOS stock, with a combined institutional value of approximately $7.93 billion as of the most recent 13F filing period.
Frequently asked questions
AOS ownershipA. O. Smith Corporation (AOS) is primarily owned by institutional investors, who hold approximately 75.9% of shares. The largest shareholder is VANGUARD GROUP INC with a 10.05% stake. Company insiders hold 1.68%. Data sourced from SEC Form 13F as of September 30, 2025.