Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 4 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

No open-market trades on record; showing all filings.

DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Feb. 25, 2026 PRLB A 2,795 · · 6,513 Direct +75.17% Acquired (price as of 2026-10-02)
Feb. 25, 2026 PRLB A 5,095 · · 5,095 Direct · Acquired (price as of 2026-10-02)
Nov. 17, 2025 PRLB A 3,718 · · 3,718 Direct · Acquired (price as of 2026-10-02)
Nov. 17, 2025 PRLB A 6,818 · · 6,818 Direct · Acquired (price as of 2026-10-02)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Feb. 25, 2026 PRLB Employee Stock Option (right to buy) Common Stock (5,095) $62.63 Feb. 25, 2036 5,095 Acquired
Nov. 17, 2025 PRLB Employee Stock Option (right to buy) Common Stock (6,818) $47.07 Nov. 17, 2035 6,818 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).