Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 10 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

10 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
May 20, 2014 PRLB P 1,600 $63.09 $100,944 2,398 Direct +200.50% Acquired 55.7% (price as of 2026-10-02)
Sept. 4, 2013 PRLB S 10,177 $74.85 $761,748 0 Direct -100.00% Disposed 31.2% (price as of 2026-10-02)
Aug. 5, 2013 PRLB S 40,000 $68.48 $2,739,200 10,177 Direct -79.72% Disposed 43.4% (price as of 2026-10-02)
May 3, 2013 PRLB S 30,000 $55.17 $1,655,100 50,177 Direct -37.42% Disposed 78.0% (price as of 2026-10-02)
May 2, 2013 PRLB S 14,000 $51.12 $715,680 80,177 Direct -14.87% Disposed 92.1% (price as of 2026-10-02)
April 30, 2013 PRLB S 6,461 $51.02 $329,640 94,277 Direct -6.41% Disposed 92.5% (price as of 2026-10-02)
April 30, 2013 PRLB S 43,539 $50.22 $2,186,529 100,738 Direct -30.18% Disposed 95.6% (price as of 2026-10-02)
Feb. 19, 2013 PRLB S 7,610 $48.00 $365,280 144,277 Direct -5.01% Disposed 104.6% (price as of 2026-10-02)
Feb. 15, 2013 PRLB S 2,390 $48.16 $115,102 151,887 Direct -1.55% Disposed 103.9% (price as of 2026-10-02)
Nov. 21, 2012 PRLB S 100,000 $31.00 $3,100,000 154,277 Direct -39.33% Disposed 216.8% (price as of 2026-10-02)
Sept. 10, 2012 PRLB S 10,119 $32.75 $331,397 254,277 Direct -3.83% Disposed 199.9% (price as of 2026-10-02)
Aug. 24, 2012 PRLB S 10,000 $32.25 $322,500 264,396 Direct -3.64% Disposed 204.5% (price as of 2026-10-02)
Aug. 23, 2012 PRLB S 20,000 $32.25 $645,000 274,396 Direct -6.79% Disposed 204.5% (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
May 20, 2015 PRLB Stock Option (right to buy) Common Stock (1,609) · May 19, 2025 1,609 Acquired
May 20, 2015 PRLB Stock Option (right to buy) Common Stock (1,609) $31.08 May 19, 2025 1,609 Acquired
May 20, 2014 PRLB Stock Option (right to buy) Common Stock (1,731) $62.68 May 19, 2024 1,731 Acquired
May 23, 2013 PRLB Stock Option (right to buy) Common Stock (2,715) $53.34 May 23, 2023 2,715 Acquired
May 23, 2013 PRLB Stock Option (right to buy) Common Stock (2,500) $53.34 May 23, 2023 2,500 Acquired

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