Thomas H Pang
CIK 1542863 · View on SEC EDGAR ↗
Insider
First SEC filing: Feb. 23, 2012 · Latest: Feb. 23, 2012
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 2 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.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Feb. 15, 2013 | PRLB | A | 16,170 | — | — | 16,170 Direct | — | Acquired | (price as of 2026-08-21) |
| May 7, 2012 | PRLB | A | 8,480 | — | — | 8,480 Direct | — | Acquired | (price as of 2026-08-21) |
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.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Feb. 15, 2013 | PRLB | Employee Stock Option (Right to Buy) | Common Stock (16,170) | $47.08 | Feb. 15, 2023 | 16,170 | Acquired |
| May 7, 2012 | PRLB | Employee Stock Option (right to buy) | Common Stock (8,480) | $30.58 | May 7, 2022 | 8,480 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 2 holdings
Securities held when first becoming an insider, per SEC Form 3.