| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Troutman Michael | Chief Information Officer | 511 W. FRESHWATER WAY, MILWAUKEE | /s/ Jeffrey J. LaValle under Power of Attorney for Michael Troutman | 01 Aug 2025 | 0001713078 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ZWS | Common Stock | Options Exercise | $299,140 | +30,871 | +61% | $9.69 | 81,376 | 31 Jul 2025 | Direct | F1 |
| transaction | ZWS | Common Stock | Options Exercise | $428,376 | +37,676 | +46% | $11.37 | 119,052 | 31 Jul 2025 | Direct | F1 |
| transaction | ZWS | Common Stock | Options Exercise | $214,950 | +15,116 | +13% | $14.22 | 134,168 | 31 Jul 2025 | Direct | F1 |
| transaction | ZWS | Common Stock | Options Exercise | $239,712 | +7,253 | +5.4% | $33.05 | 141,421 | 31 Jul 2025 | Direct | F1 |
| transaction | ZWS | Common Stock | Sale | $3,910,297 | -90,916 | -64% | $43.01 | 50,505 | 31 Jul 2025 | Direct | F1, F2 |
| holding | ZWS | Common Stock | 1,890 | 31 Jul 2025 | By 401(k) Plan | F3 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ZWS | Stock Option (right to buy) | Options Exercise | $0 | -30,871 | -100% | $0.000000 | 0 | 31 Jul 2025 | Common Stock | 30,871 | $9.69 | Direct | F4 |
| transaction | ZWS | Stock Option (right to buy) | Options Exercise | $0 | -37,676 | -100% | $0.000000 | 0 | 31 Jul 2025 | Common Stock | 37,676 | $11.37 | Direct | F4 |
| transaction | ZWS | Stock Option (right to buy) | Options Exercise | $0 | -15,116 | -100% | $0.000000 | 0 | 31 Jul 2025 | Common Stock | 15,116 | $14.22 | Direct | F4 |
| transaction | ZWS | Stock Option (right to buy) | Options Exercise | $0 | -7,253 | -100% | $0.000000 | 0 | 31 Jul 2025 | Common Stock | 7,253 | $33.05 | Direct | F4 |
| Id | Content |
|---|---|
| F1 | Includes shares acquired under the Company's Employee Stock Purchase Plan in 2025. |
| F2 | This transaction was executed in multiple trades at prices ranging from $42.44 to $43.39. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effectuated. |
| F3 | Based on information from the trustee of the 401(k) Plan. |
| F4 | Option fully vested. |