// company-profile
Proto Labs Inc Insider Trading
PRLBEvery SEC Form 4 insider trading filing for Proto Labs Inc (PRLB) — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC.
curl "https://api.form4api.com/v1/transactions?ticker=PRLB" -H "X-Api-Key: YOUR_API_KEY"// activity-summary
No insider transactions in the last 30 days.
// 90-day insight
Over the last 90 days, Proto Labs Inc insiders bought $367K (14 transactions) and sold $1.4M (8 transactions).
- Most active insider: Kenison Michael R. with 10 transactions totaling $1.5M.
- Largest single sale: $467K by Kenison Michael R. on May 12, 2026.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Proto Labs Inc as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 2, 2026 | WEHRWEIN SVEN | PRLB | Sale | 500 | $78.38 | $39K |
| Jun 2, 2026 | WEHRWEIN SVEN | PRLB | Sale | 1,500 | $76.91 | $115K |
| May 23, 2026 | Krishna Suresh | PRLB | Tax Withholding | 1,247 | $71.36 | $89K |
| May 20, 2026 | Parlange Bernardo | PRLB | Award | 2,109 | $0.00 | $0K |
| May 20, 2026 | Parlange Bernardo | PRLB | Award | 3,789 | $0.00 | $0K |
45 more transactions hidden
Free account · No credit card required
Building something? Get API access →