Donald R Dixon

CIK 1045434 · View on SEC EDGAR ↗

Insider

First SEC filing: May 28, 2026 · Latest: May 28, 2026

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Insider transactions

0 buys (P) 3 sells (S) Net: $-2,544,970 + 62 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

62 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
June 15, 2026 AMPX S 85,000 $17.17 $1,459,450 359,380 Indirect -19.13% Disposed -39.4% (price as of 2026-08-21)
June 9, 2026 AMPX S 40,000 $19.13 $765,200 444,380 Indirect -8.26% Disposed -45.6% (price as of 2026-08-21)
May 26, 2026 AMPX S 17,895 $17.90 $320,320 484,380 Indirect -3.56% Disposed -41.9% (price as of 2026-08-21)
Nov. 28, 2017 QLYS S 320 $60.00 $19,200 643 Indirect -33.23% Disposed 196.3% (price as of 2026-08-21)
Nov. 27, 2017 QLYS S 100 $61.50 $6,150 82,538 Indirect -0.12% Disposed 189.1% (price as of 2026-08-21)
Nov. 27, 2017 QLYS S 5,360 $60.70 $325,352 82,638 Indirect -6.09% Disposed 192.9% (price as of 2026-08-21)
Nov. 27, 2017 QLYS S 35,808 $59.79 $2,140,960 87,998 Indirect -28.92% Disposed 197.4% (price as of 2026-08-21)
Nov. 27, 2017 QLYS S 500 $61.36 $30,680 104,764 Direct -0.47% Disposed 189.8% (price as of 2026-08-21)
Nov. 27, 2017 QLYS S 8,800 $60.51 $532,488 105,264 Direct -7.71% Disposed 193.8% (price as of 2026-08-21)
Nov. 27, 2017 QLYS S 40,591 $59.72 $2,424,095 114,064 Direct -26.25% Disposed 197.7% (price as of 2026-08-21)
Nov. 17, 2017 QLYS S 191 $57.51 $10,984 123,806 Indirect -0.15% Disposed 209.2% (price as of 2026-08-21)
Nov. 17, 2017 QLYS S 7,545 $57.42 $433,234 154,655 Direct -4.65% Disposed 209.6% (price as of 2026-08-21)
Nov. 16, 2017 QLYS S 9,603 $58.60 $562,736 123,997 Indirect -7.19% Disposed 203.4% (price as of 2026-08-21)
Nov. 16, 2017 QLYS S 25,100 $58.07 $1,457,557 133,600 Indirect -15.82% Disposed 206.2% (price as of 2026-08-21)
Nov. 16, 2017 QLYS S 271 $57.93 $15,699 963 Indirect -21.96% Disposed 206.9% (price as of 2026-08-21)
Nov. 16, 2017 QLYS S 9,202 $58.61 $539,329 162,200 Direct -5.37% Disposed 203.4% (price as of 2026-08-21)
Nov. 16, 2017 QLYS S 25,437 $58.09 $1,477,635 171,402 Direct -12.92% Disposed 206.1% (price as of 2026-08-21)
Nov. 16, 2017 QLYS S 9,603 $58.60 $562,736 123,997 Indirect -7.19% Disposed 203.4% (price as of 2026-08-21)
Nov. 16, 2017 QLYS S 25,100 $58.07 $1,457,557 133,600 Indirect -15.82% Disposed 206.2% (price as of 2026-08-21)
Nov. 16, 2017 QLYS S 271 $57.93 $15,699 963 Indirect -21.96% Disposed 206.9% (price as of 2026-08-21)
Nov. 16, 2017 QLYS S 9,202 $58.61 $539,329 162,200 Direct -5.37% Disposed 203.4% (price as of 2026-08-21)
Nov. 16, 2017 QLYS S 25,437 $58.09 $1,477,635 171,402 Direct -12.92% Disposed 206.1% (price as of 2026-08-21)
Nov. 15, 2017 QLYS S 6,374 $57.80 $368,417 158,700 Indirect -3.86% Disposed 207.6% (price as of 2026-08-21)
Nov. 15, 2017 QLYS S 49 $57.80 $2,832 1,234 Indirect -3.82% Disposed 207.6% (price as of 2026-08-21)
Nov. 15, 2017 QLYS S 7,707 $57.80 $445,465 196,839 Direct -3.77% Disposed 207.6% (price as of 2026-08-21)
Nov. 15, 2017 QLYS S 6,374 $57.80 $368,417 158,700 Indirect -3.86% Disposed 207.6% (price as of 2026-08-21)
Nov. 15, 2017 QLYS S 49 $57.80 $2,832 1,234 Indirect -3.82% Disposed 207.6% (price as of 2026-08-21)
Nov. 15, 2017 QLYS S 7,707 $57.80 $445,465 196,839 Direct -3.77% Disposed 207.6% (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
Sept. 14, 2022 AMPX Stock Option (right to buy) Common Stock (270,251) $2.61 April 13, 2032 270,251 Acquired
June 4, 2015 QLYS Stock Option (right to buy) Common Stock (12,000) $40.68 June 4, 2025 12,000 Acquired
June 4, 2014 QLYS Stock Option (right to buy) Common Stock (12,000) $22.31 June 4, 2024 12,000 Disposed
June 4, 2013 QLYS Stock Option (right to buy) Common Stock (12,000) $13.50 June 4, 2013 12,000 Disposed
Oct. 3, 2012 QLYS Series C Preferred Stock Common Stock (1,494) — — 1,494 Disposed
Oct. 3, 2012 QLYS Series C Preferred Stock Common Stock (1,566) — — 1,566 Disposed
Oct. 3, 2012 QLYS Series C Preferred Stock Common Stock (7,802) — — 7,802 Disposed
Oct. 3, 2012 QLYS Series C Preferred Stock Common Stock (20,481) — — 20,481 Disposed
Oct. 3, 2012 QLYS Series C Preferred Stock Common Stock (269,599) — — 269,599 Disposed
Oct. 3, 2012 QLYS Series B Preferred Stock Common Stock (20,762) — — 20,762 Disposed
Oct. 3, 2012 QLYS Series B Preferred Stock Common Stock (21,758) — — 21,758 Disposed
Oct. 3, 2012 QLYS Series B Preferred Stock Common Stock (108,359) — — 108,359 Disposed
Oct. 3, 2012 QLYS Series B Preferred Stock Common Stock (284,432) — — 284,432 Disposed
Oct. 3, 2012 QLYS Series B Preferred Stock Common Stock (3,743,844) — — 3,743,844 Disposed
Oct. 3, 2012 QLYS Series A Preferred Stock Common Stock (7,468) — — 7,468 Disposed
Oct. 3, 2012 QLYS Series A Preferred Stock Common Stock (7,826) — — 7,826 Disposed
Oct. 3, 2012 QLYS Series A Preferred Stock Common Stock (32,622) — — 32,622 Disposed
Oct. 3, 2012 QLYS Series A Preferred Stock Common Stock (102,325) — — 102,325 Disposed
Oct. 3, 2012 QLYS Series A Preferred Stock Common Stock (1,346,877) — — 1,346,877 Disposed

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

Initial ownership (Form 3) 26 holdings

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

Date Ticker Security Shares Ownership
Sept. 16, 2022 AMPX Common Stock 100,000 Indirect
Sept. 16, 2022 AMPX Common Stock 96,267 Indirect
Sept. 16, 2022 AMPX Common Stock 3,733 Indirect
Sept. 16, 2022 AMPX Warrants (right to buy)→ Common Stock (100,000) 100,000 Indirect
Sept. 16, 2022 AMPX Warrants (right to buy)→ Common Stock (96,267) 96,267 Indirect
Sept. 16, 2022 AMPX Warrants (right to buy)→ Common Stock (3,733) 3,733 Indirect
Sept. 27, 2012 QLYS Common Stock 278,981 Indirect
Sept. 27, 2012 QLYS Common Stock 21,192 Indirect
Sept. 27, 2012 QLYS Common Stock 8,073 Indirect
Sept. 27, 2012 QLYS Common Stock 1,620 Indirect
Sept. 27, 2012 QLYS Common Stock 1,545 Indirect
Sept. 27, 2012 QLYS Series A Preferred Stock→ Common Stock (1,346,877) 1,346,877 Indirect
Sept. 27, 2012 QLYS Series A Preferred Stock→ Common Stock (102,325) 102,325 Indirect
Sept. 27, 2012 QLYS Series A Preferred Stock→ Common Stock (32,622) 32,622 Indirect
Sept. 27, 2012 QLYS Series A Preferred Stock→ Common Stock (7,826) 7,826 Indirect
Sept. 27, 2012 QLYS Series A Preferred Stock→ Common Stock (7,468) 7,468 Indirect
Sept. 27, 2012 QLYS Series B Preferred Stock→ Common Stock (3,743,844) 3,743,844 Indirect
Sept. 27, 2012 QLYS Series B Preferred Stock→ Common Stock (284,432) 284,432 Indirect
Sept. 27, 2012 QLYS Series B Preferred Stock→ Common Stock (108,359) 108,359 Indirect
Sept. 27, 2012 QLYS Series B Preferred Stock→ Common Stock (21,758) 21,758 Indirect
Sept. 27, 2012 QLYS Series B Preferred Stock→ Common Stock (20,762) 20,762 Indirect
Sept. 27, 2012 QLYS Series C Preferred Stock→ Common Stock (269,599) 269,599 Indirect
Sept. 27, 2012 QLYS Series C Preferred Stock→ Common Stock (20,481) 20,481 Indirect
Sept. 27, 2012 QLYS Series C Preferred Stock→ Common Stock (7,802) 7,802 Indirect
Sept. 27, 2012 QLYS Series C Preferred Stock→ Common Stock (1,566) 1,566 Indirect
Sept. 27, 2012 QLYS Series C Preferred Stock→ Common Stock (1,494) 1,494 Indirect