MWA · Insider trading · 13F holders · Congress trades
Mueller Water Products, Inc. (MWA)
Who is buying and selling MWA: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 15
- Insider buys, 90 days
- $30K
- Insider sales, 90 days
- $1.7M
- Congress trades, 12 months
- 0
MWA at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 5 MWA insiders filed 1 open-market purchase worth $30K and 5 sales worth $1.7M on SEC Form 4; 3 of the sales were pre-planned under Rule 10b5-1.
- 15 13F filers hold MWA among their 50 largest positions, worth $324.2M combined, including Mario Gabelli. The biggest bets by portfolio weight are Lightrock Netherlands B.V. (2.6%), Fiduciary Management Inc /wi/ (2.2%) and Speece Thorson Capital Group Inc (2.0%). In their latest 13Fs, 0 managers opened a new position and 4 added to one.
- No member of Congress has disclosed a trade in MWA.
- MWA last closed at $22.78 on Oct 29, 2026.
MWA insider trading
Between Aug 1, 2026 and Oct 29, 2026, 5 MWA insiders filed 1 open-market purchase worth $30K and 5 sales worth $1.7M on SEC Form 4; 3 of the sales were pre-planned under Rule 10b5-1.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Oct 9, 2026 | Healy Brian C. | Director | Buy10b5-1 | 1,376 | $21.75 | $30K | SEC |
| Sep 3, 2026 | Helms Todd P | Former Officer/Senior Advisor | Sale | 9,997 | $23.67 | $237K | SEC |
| Sep 1, 2026 | Ortiz Christine | Director | Sale10b5-1 | 550 | $23.93 | $13K | SEC |
| Aug 31, 2026 | Ortiz Christine | Director | Sale10b5-1 | 12,048 | $24.23 | $292K | SEC |
| Aug 26, 2026 | Feyerherm Richelle R. | VP, CAO and Corp. Controller | Sale | 3,000 | $25.00 | $75K | SEC |
| Aug 10, 2026 | McAndrew Paul | President and CEO, Director | Sale10b5-1 | 40,000 | $26.39 | $1.1M | SEC |
Who owns MWA? Hedge funds and superinvestors
15 13F filers hold MWA among their 50 largest positions, worth $324.2M combined, including Mario Gabelli. The biggest bets by portfolio weight are Lightrock Netherlands B.V. (2.6%), Fiduciary Management Inc /wi/ (2.2%) and Speece Thorson Capital Group Inc (2.0%). In their latest 13Fs, 0 managers opened a new position and 4 added to one.
Superinvestors holding MWA: Mario Gabelli 0.6%
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Fiduciary Management Inc /wi/Wealth manager | 2.2% | $152.4M | 5,902,018 | +42.0% shares | Q2 2026 |
| Mario GabelliCorporation | 0.6% | $65.6M | 2,538,072 | -0.4% shares | Q2 2026 |
| Triodos Investment Management BVAsset manager | 1.6% | $26.9M | 1,043,000 | +3.5% shares | Q2 2026 |
| Algert Global LLCInstitutional asset manager | 0.3% | $26.1M | 1,008,521 | +19.1% shares | Q2 2026 |
| Lightrock Netherlands B.V.Investment manager | 2.6% | $13.2M | 509,933 | +7.4% shares | Q2 2026 |
| Speece Thorson Capital Group IncAsset manager | 2.0% | $9.5M | 367,282 | -1.9% shares | Q2 2026 |
| Palisades Investment Partners, LLCInstitutional asset manager | 1.9% | $6.8M | 262,991 | +3.0% shares | Q2 2026 |
| Globeflex Capital L PAsset manager | 0.7% | $5.1M | 197,096 | -5.1% shares | Q2 2026 |
| Grandeur Peak Global Advisors, LLCMutual fund manager | 1.0% | $4.5M | 175,070 | — | Q2 2026 |
| Mcdonald Partners LLCWealth manager | 1.1% | $4.5M | 174,205 | -2.3% shares | Q2 2026 |
| Nia Impact Advisors, LLCWealth manager | 1.2% | $2.8M | 110,327 | -6.9% shares | Q2 2026 |
| Global Alpha Capital Management Ltd.Institutional asset manager | 0.1% | $2.3M | 90,303 | — | Q2 2026 |
| EDENTREE ASSET MANAGEMENT LtdAsset manager | 0.5% | $1.7M | 67,400 | +6.0% shares | Q2 2026 |
| Boyar Asset Management Inc.Wealth manager | 1.0% | $1.7M | 66,262 | -19.4% shares | Q2 2026 |
| Prentiss Smith & Co IncWealth manager | 0.5% | $961K | 45,227 | — | Q3 2026 |
Each manager counts with its latest 13F (Q3 2026: 1, Q2 2026: 14). Screen MWA in the grand portfolio →
MWA stock trades by members of Congress
No member of Congress has disclosed a trade in MWA.
Analysis mentioning MWA
Posts from the blog that cover Mueller Water Products, Inc., newest first.
MWA questions and answers
Are insiders buying MWA stock?
Between Aug 1, 2026 and Oct 29, 2026, 5 MWA insiders filed 1 open-market purchase worth $30K and 5 sales worth $1.7M on SEC Form 4; 3 of the sales were pre-planned under Rule 10b5-1.
Which hedge funds own MWA?
15 13F filers hold MWA among their 50 largest positions, worth $324.2M combined, including Mario Gabelli. The biggest bets by portfolio weight are Lightrock Netherlands B.V. (2.6%), Fiduciary Management Inc /wi/ (2.2%) and Speece Thorson Capital Group Inc (2.0%). In their latest 13Fs, 0 managers opened a new position and 4 added to one.
Has Congress traded MWA?
No member of Congress has disclosed a trade in MWA.
Who is the largest holder of MWA?
Among 13F filers, Fiduciary Management Inc /wi/ reports the largest MWA position, $152.4M (5,902,018 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Lightrock Netherlands B.V.'s: 2.6% of its portfolio.
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