Michael J Berthelot
CIK 940396 · View on SEC EDGAR ↗
Insider
First SEC filing: Jan. 16, 2009 · Latest: Jan. 16, 2009
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
Insider at
Insider transactions
0 buys (P)
1 sells (S)
Net:
$-215,100
+ 79 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
79 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Nov. 3, 2025 | DMC | S | 6,000 | $35.85 | $215,100 | 7,499 Direct | -44.45% | Disposed | -12.7% (price as of 2026-08-21) |
| March 6, 2025 | DMC | S | 3,000 | $30.16 | $90,480 | 7,107 Direct | -29.68% | Disposed | 3.7% (price as of 2026-08-21) |
| Nov. 6, 2024 | DMC | S | 3,300 | $33.96 | $112,068 | 10,107 Direct | -24.61% | Disposed | -7.9% (price as of 2026-08-21) |
| Sept. 9, 2024 | DMC | S | 509 | $28.70 | $14,608 | 13,407 Direct | -3.66% | Disposed | 9.0% (price as of 2026-08-21) |
| May 22, 2024 | DMC | S | 5,800 | $23.64 | $137,112 | 13,916 Direct | -29.42% | Disposed | 32.3% (price as of 2026-08-21) |
| Aug. 7, 2023 | DMC | S | 6,000 | $28.47 | $170,820 | 13,859 Direct | -30.21% | Disposed | 9.9% (price as of 2026-08-21) |
| Nov. 8, 2022 | DMC | S | 1,400 | $27.96 | $39,144 | 13,861 Direct | -9.17% | Disposed | 11.9% (price as of 2026-08-21) |
| May 27, 2022 | DMC | S | 5,000 | $25.31 | $126,550 | 15,261 Direct | -24.68% | Disposed | 23.6% (price as of 2026-08-21) |
| Aug. 18, 2021 | DMC | S | 1,800 | $31.82 | $57,276 | 16,971 Direct | -9.59% | Disposed | -1.7% (price as of 2026-08-21) |
| May 17, 2021 | DMC | S | 3,200 | $36.42 | $116,544 | 17,685 Direct | -15.32% | Disposed | -14.1% (price as of 2026-08-21) |
| March 31, 2021 | DMC | S | 448 | $28.94 | $12,965 | 18,637 Direct | -2.35% | Disposed | 8.1% (price as of 2026-08-21) |
| March 10, 2021 | DMC | S | 1,176 | $29.90 | $35,162 | 19,085 Direct | -5.80% | Disposed | 4.6% (price as of 2026-08-21) |
| Feb. 25, 2020 | DMC | S | 615 | $30.00 | $18,450 | 18,922 Direct | -3.15% | Disposed | 4.3% (price as of 2026-08-21) |
| May 17, 2019 | DMC | S | 2,207 | $29.37 | $64,820 | 18,308 Direct | -10.76% | Disposed | 6.5% (price as of 2026-08-21) |
| March 19, 2018 | DMC | S | 1,332 | $47.04 | $62,657 | 16,101 Direct | -7.64% | Disposed | -33.5% (price as of 2026-08-21) |
| Aug. 22, 2017 | DMC | S | 1,021 | $47.07 | $48,058 | 14,770 Direct | -6.47% | Disposed | -33.5% (price as of 2026-08-21) |
| May 10, 2016 | DMC | S | 6,250 | $49.65 | $310,312 | 13,749 Direct | -31.25% | Disposed | -37.0% (price as of 2026-08-21) |
| Feb. 26, 2016 | DMC | S | 1,639 | $40.00 | $65,560 | 13,749 Direct | -10.65% | Disposed | -21.8% (price as of 2026-08-21) |
| Aug. 27, 2015 | DMC | S | 1,563 | $39.26 | $61,363 | 12,110 Direct | -11.43% | Disposed | -20.3% (price as of 2026-08-21) |
| Feb. 26, 2015 | DMC | S | 6,000 | $35.30 | $211,800 | 500 Direct | -92.31% | Disposed | -11.4% (price as of 2026-08-21) |
| Aug. 4, 2014 | DMC | S | 1,866 | $30.00 | $55,980 | 10,548 Direct | -15.03% | Disposed | 4.3% (price as of 2026-08-21) |
Showing latest 100 of 136 transactions
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 |
|---|---|---|---|---|---|---|---|
| May 5, 2026 | DMC | Restricted Stock Units | Ordinary Shares (4,489) | — | — | 4,489 | Disposed |
| May 5, 2026 | DMC | Dividend Equivalent Units | Ordinary Shares (149) | — | — | 149 | Disposed |
| May 4, 2026 | DMC | Restricted Stock Units | Ordinary Shares (3,717) | — | — | 3,717 | Acquired |
| May 7, 2025 | DMC | Restricted Stock Units | Ordinary Shares (6,162) | — | — | 6,162 | Disposed |
| May 7, 2025 | DMC | Dividend Equivalent Units | Ordinary Shares (231) | — | — | 231 | Disposed |
| May 5, 2025 | DMC | Restricted Stock Units | Ordinary Shares (4,489) | — | — | 4,489 | Acquired |
| Dec. 6, 2024 | DMC | Dividend Equivalent Units | Ordinary Shares (47) | — | — | 47 | Acquired |
| Sept. 6, 2024 | DMC | Dividend Equivalent Units | Ordinary Shares (53) | — | — | 53 | Acquired |
| June 7, 2024 | DMC | Dividend Equivalent Units | Ordinary Shares (68) | — | — | 68 | Acquired |
| May 7, 2024 | DMC | Restricted Stock Units | Ordinary Shares (6,162) | — | — | 6,162 | Acquired |
| May 4, 2024 | DMC | Restricted Stock Units | Ordinary Shares (5,666) | — | — | 5,666 | Disposed |
| May 4, 2024 | DMC | Dividend Equivalent Units | Ordinary Shares (192) | — | — | 192 | Disposed |
| March 29, 2024 | DMC | Dividend Equivalent Units | Ordinary Shares (56) | — | — | 56 | Acquired |
| Dec. 8, 2023 | DMC | Dividend Equivalent Units | Ordinary Shares (48) | — | — | 48 | Acquired |
| Dec. 8, 2023 | DMC | Dividend Equivalent Units | Ordinary Shares (45) | — | — | 45 | Acquired |
| Sept. 8, 2023 | DMC | Dividend Equivalent Units | Ordinary Shares (45) | — | — | 45 | Acquired |
| June 9, 2023 | DMC | Dividend Equivalent Units | Ordinary Shares (42) | — | — | 42 | Acquired |
| May 4, 2023 | DMC | Restricted Stock Units | Ordinary Shares (5,666) | — | — | 5,666 | Acquired |
| May 4, 2023 | DMC | Restricted Stock Units | Ordinary Shares (5,901) | — | — | 5,901 | Disposed |
| May 4, 2023 | DMC | Dividend Equivalent Units | Ordinary Shares (97) | — | — | 97 | Disposed |
| March 31, 2023 | DMC | Dividend Equivalent Units | Ordinary Shares (30) | — | — | 30 | Acquired |
| Dec. 9, 2022 | DMC | Dividend Equivalent Units | Ordinary Shares (33) | — | — | 33 | Acquired |
| Sept. 9, 2022 | DMC | Dividend Equivalent Units | Ordinary Shares (35) | — | — | 35 | Acquired |
| June 2, 2022 | DMC | Restricted Stock Units | Ordinary Shares (5,901) | — | — | 5,901 | Acquired |
| April 30, 2022 | DMC | Restricted Stock Units | Ordinary Shares (1,082) | — | — | 1,082 | Disposed |
| April 30, 2022 | DMC | Dividend Equivalent Units | Ordinary Shares (21) | — | — | 21 | Disposed |
| April 1, 2022 | DMC | Dividend Equivalent Units | Ordinary Shares (6) | — | — | 6 | Acquired |
| Jan. 31, 2022 | DMC | Restricted Stock Units | Ordinary Shares (1,083) | — | — | 1,083 | Disposed |
| Jan. 31, 2022 | DMC | Dividend Equivalent Units | Ordinary Shares (14) | — | — | 14 | Disposed |
| Dec. 10, 2021 | DMC | Dividend Equivalent Units | Ordinary Shares (13) | — | — | 13 | Acquired |
| Nov. 1, 2021 | DMC | Restricted Stock Units | Ordinary Shares (1,083) | — | — | 1,083 | Disposed |
| Nov. 1, 2021 | DMC | Dividend Equivalent Units | Ordinary Shares (8) | — | — | 8 | Disposed |
| Sept. 10, 2021 | DMC | Dividend Equivalent Units | Ordinary Shares (16) | — | — | 16 | Acquired |
| July 31, 2021 | DMC | Restricted Stock Units | Ordinary Shares (1,083) | — | — | 1,083 | Disposed |
| July 31, 2021 | DMC | Dividend Equivalent Units | Ordinary Shares (3) | — | — | 3 | Disposed |
| June 11, 2021 | DMC | Dividend Equivalent Units | Ordinary Shares (12) | — | — | 12 | Acquired |
| May 4, 2021 | DMC | Restricted Stock Units | Ordinary Shares (4,331) | — | — | 4,331 | Acquired |
| April 30, 2021 | DMC | Restricted Stock Units | Ordinary Shares (2,223) | — | — | 2,223 | Disposed |
| April 30, 2021 | DMC | Dividend Equivalent Units | Ordinary Shares (25) | — | — | 25 | Disposed |
| April 2, 2021 | DMC | Dividend Equivalent Units | Ordinary Shares (8) | — | — | 8 | Acquired |
| Feb. 1, 2021 | DMC | Restricted Stock Units | Ordinary Shares (445) | — | — | 445 | Disposed |
| Feb. 1, 2021 | DMC | Dividend Equivalent Units | Ordinary Shares (3) | — | — | 3 | Disposed |
| Dec. 4, 2020 | DMC | Dividend Equivalent Units | Ordinary Shares (10) | — | — | 10 | Acquired |
| Nov. 2, 2020 | DMC | Dividend Equivalent Units | Ordinary Shares (1) | — | — | 1 | Disposed |
| Nov. 2, 2020 | DMC | Restricted Stock Units | Ordinary Shares (445) | — | — | 445 | Disposed |
| Sept. 4, 2020 | DMC | Dividend Equivalent Units | Ordinary Shares (13) | — | — | 13 | Acquired |
| July 31, 2020 | DMC | Restricted Stock Units | Ordinary Shares (445) | — | — | 445 | Disposed |
| April 28, 2020 | DMC | Restricted Stock Units | Ordinary Shares (3,558) | — | — | 3,558 | Acquired |
| May 10, 2016 | DMC | Employee Stock Options (Right to Buy) | Ordinary Shares (6,250) | $33.97 | Feb. 27, 2018 | 6,250 | Disposed |
| Feb. 26, 2015 | DMC | Employee Stock Options (Right to Buy) | Ordinary Shares (6,000) | $18.31 | May 3, 2016 | 6,000 | Disposed |
| Nov. 29, 2012 | PDEX | Directors Stock Options | Pro-Dex Common Stock (5,000) | $1.47 | Jan. 9, 2020 | 5,000 | Disposed |
| Nov. 29, 2012 | PDEX | Directors Stock Options | Pro-Dex Common Stock (6,667) | $1.41 | Jan. 9, 2019 | 6,667 | Disposed |
| May 14, 2012 | PDEX | Stock Option (Right to Buy) | Common Stock (200,000) | $1.99 | May 14, 2022 | 200,000 | Acquired |
| Dec. 5, 2011 | PDEX | Stock Option (Right to Buy) | Common Stock (10,000) | $2.34 | — | 10,000 | Acquired |
| May 17, 2011 | DMC | Employee Options (Right to Buy) | Ordinary Shares (6,000) | $18.31 | May 3, 2016 | 6,000 | Disposed |
| March 30, 2011 | DMC | Employee Options (Right to Buy) | Ordinary Shares (4,804) | $19.83 | Feb. 25, 2019 | 4,804 | Disposed |
| March 28, 2011 | DMC | Employee Options (Right to Buy) | Ordinary Shares (856) | $19.83 | Feb. 25, 2019 | 856 | Disposed |
| March 25, 2011 | DMC | Employee Options (Right to Buy) | Ordinary Shares (590) | $19.83 | Feb. 25, 2019 | 590 | Disposed |
| March 11, 2011 | DMC | Employee Options (Right to Buy) | Ordinary Shares (6,000) | $18.31 | May 3, 2016 | 6,000 | Disposed |
| Dec. 3, 2010 | PDEX | Stock Option (Right to Buy) | Common Stock (10,000) | $2.09 | — | 10,000 | Acquired |
| Jan. 9, 2010 | PDEX | Pro-Dex Stock Options | Pro-Dex Common Stock (15,000) | $0.49 | Jan. 8, 2020 | 15,000 | Acquired |
| Feb. 25, 2009 | DMC | Grant of Director Options | Ordinary Shares (6,250) | $19.83 | Feb. 25, 2019 | 6,250 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Jan. 16, 2009 | PDEX | Director Stock Options→ Stock Options (20,000) | 20,000 | Direct |
| April 3, 2008 | DMC | 5/3/2006 Grant of Director Options→ Ordinary Shares (18,000) | 18,000 | Direct |
| April 3, 2008 | DMC | 2/27/2008 Grant of Director Options→ Ordinary Shares (6,250) | 6,250 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2013 | $195,852 | — | — | — | — | — | $173,174 | $369,026 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.