David Holder

CIK 1454382 · View on SEC EDGAR ↗

Insider

First SEC filing: Jan. 21, 2009 · Latest: Jan. 21, 2009

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Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 7 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

7 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Nov. 28, 2012 PDEX S 966 $1.93 $1,864 966 Direct — Acquired 3433.7% (price as of 2026-08-19)

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
Nov. 28, 2012 PDEX Directors Stock Options Pro-Dex Common Stock (5,000) $1.47 Jan. 9, 2020 5,000 Disposed
Nov. 28, 2012 PDEX Directors Stock Options Pro-Dex Common Stock (6,667) $1.41 Jan. 9, 2019 6,667 Disposed
Dec. 5, 2011 PDEX Stock Option (Right to Buy) Common Stock (10,000) $2.34 — 10,000 Acquired
Dec. 3, 2010 PDEX Stock Option (Right to Buy) Common Stock (10,000) $2.09 — 10,000 Acquired
Jan. 9, 2010 PDEX Directors Stock options Pro-Dex Common Stock (15,000) $0.49 Jan. 8, 2020 15,000 Acquired

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

Initial ownership (Form 3) 1 holding

Securities held when first becoming an insider, per SEC Form 3.

Date Ticker Security Shares Ownership
Jan. 21, 2009 PDEX Director Stock Options→ Stock Options (20,000) 20,000 Direct