Kenison Michael R.'s Form 4 filing
Proto Labs Inc (PRLB) · filed May 13, 2026
- Accession no.
- 0001628280-26-034651
- Filed
- May 13, 2026
- Trade date
- May 11-12, 2026
- Filing delay
- 2 days
- Rule 10b5-1 plan
- Checked
This filing lists 10 non-derivative transactions and 5 derivative transactions. Open-market sales total $1.64M. It was filed 2 days after the trade.
Reporting owners
A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.
| Owner | Relationship to the company |
|---|---|
| Kenison Michael R.CIK 0001870293 | Officer (Chief Operations Officer) |
Non-derivative securities (Table I)
Acquisitions and disposals of common stock and similar shares, one row per line on the filing.
| Trade date | Security | Transaction | Shares | Price | Value | Shares after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| May 11, 2026 | Common Stock | MOption exerciseAcquired | +3,756 | $33.84 | +$127,103.04 | 30,942 | Direct | |
| May 11, 2026 | Common Stock | MOption exerciseAcquired | +3,677 | $33.52 | +$123,253.04 | 34,619 | Direct | |
| May 11, 2026 | Common Stock | SSaleDisposed | −7,433 | $70.26F2 | −$522,242.58 | 27,186 | Direct | |
| May 12, 2026 | Common Stock | MOption exerciseAcquired | +1,928 | $33.84 | +$65,243.52 | 29,114 | Direct | |
| May 12, 2026 | Common Stock | MOption exerciseAcquired | +1,557 | $39.61 | +$61,672.77 | 30,671 | Direct | |
| May 12, 2026 | Common Stock | MOption exerciseAcquired | +4,042 | $59.40 | +$240,094.8 | 34,713 | Direct | |
| May 12, 2026 | Common Stock | SSaleDisposed | −1,613 | $67.58F3 | −$109,006.54 | 33,100 | Direct | |
| May 12, 2026 | Common Stock | SSaleDisposed | −4,198 | $68.70F4 | −$288,402.6 | 28,902 | Direct | |
| May 12, 2026 | Common Stock | SSaleDisposed | −3,576 | $69.78F5 | −$249,533.28 | 25,326 | Direct | |
| May 12, 2026 | Common Stock | SSaleDisposed | −6,643 | $70.30F6 | −$467,002.9 | 18,683 | Direct |
Derivative securities (Table II)
Options, warrants, restricted stock units and similar. Shares are the underlying shares; price and value are for the derivative itself, and the holding after is in derivative units.
| Trade date | Security | Transaction | Underlying shares | Unit price | Value | Held after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| May 11, 2026 | Common Stock | MOption exerciseDisposed | −3,756 | $0.00 | $0 | 3,856 | Direct | |
| May 11, 2026 | Common Stock | MOption exerciseDisposed | −3,677 | $0.00 | $0 | 3,778 | Direct | |
| May 12, 2026 | Common Stock | MOption exerciseDisposed | −1,928 | $0.00 | $0 | 1,928 | Direct | |
| May 12, 2026 | Common Stock | MOption exerciseDisposed | −1,557 | $0.00 | $0 | 4,674 | Direct | |
| May 12, 2026 | Common Stock | MOption exerciseDisposed | −4,042 | $0.00 | $0 | 0 | Direct |
Footnotes and remarks
Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.
- F2
Reflects the weighted average price of 7,433 shares of common stock of Proto Labs Inc. sold by the reporting person in multiple transactions on May 11, 2026, with sale prices ranging from $70.00 to $70.57 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
Referenced by the price of 1 transaction in Table I.
- F3
Reflects the weighted average price of 1,613 shares of common stock of Proto Labs Inc. sold by the reporting person in multiple transactions on May 12, 2026, with sale prices ranging from $67.06 to $68.05 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
Referenced by the price of 1 transaction in Table I.
- F4
Reflects the weighted average price of 4,198 shares of common stock of Proto Labs Inc. sold by the reporting person in multiple transactions on May 12, 2026, with sale prices ranging from $68.10 to $69.0425 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
Referenced by the price of 1 transaction in Table I.
- F5
Reflects the weighted average price of 3,576 shares of common stock of Proto Labs Inc. sold by the reporting person in multiple transactions on May 12, 2026, with sale prices ranging from $69.13 to $70.1181 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
Referenced by the price of 1 transaction in Table I.
- F6
Reflects the weighted average price of 6,643 shares of common stock of Proto Labs Inc. sold by the reporting person in multiple transactions on May 12, 2026, with sale prices ranging from $70.13 to $70.57 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
Referenced by the price of 1 transaction in Table I.