Timothy S Ernst
CIK 1676291 · View on SEC EDGAR ↗
Insider
First SEC filing: June 10, 2016 · Latest: June 10, 2016
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 63 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
63 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Feb. 28, 2024 | BIO | S | 2,500 | $330.55 | $826,375 | 3,397 Direct | -42.39% | Disposed | 10.3% (price as of 2026-08-20) |
| Aug. 30, 2023 | BIO | S | 377 | $396.44 | $149,458 | 2,416 Direct | -13.50% | Disposed | -8.0% (price as of 2026-08-20) |
| Aug. 30, 2023 | BIO | S | 1,582 | $395.76 | $626,092 | 2,793 Direct | -36.16% | Disposed | -7.9% (price as of 2026-08-20) |
| Aug. 30, 2023 | BIO | S | 391 | $394.16 | $154,117 | 4,375 Direct | -8.20% | Disposed | -7.5% (price as of 2026-08-20) |
| Aug. 23, 2023 | BIO | S | 300 | $384.69 | $115,407 | 2,416 Direct | -11.05% | Disposed | -5.2% (price as of 2026-08-20) |
| March 8, 2023 | BIO | S | 746 | $486.89 | $363,220 | 2,671 Direct | -21.83% | Disposed | -25.1% (price as of 2026-08-20) |
| March 8, 2023 | BIO | S | 1,000 | $486.08 | $486,080 | 3,417 Direct | -22.64% | Disposed | -25.0% (price as of 2026-08-20) |
| Aug. 4, 2021 | BIO | S | 327 | $760.26 | $248,605 | 919 Direct | -26.24% | Disposed | -52.0% (price as of 2026-08-20) |
| Feb. 19, 2021 | BIO | S | 196 | $640.17 | $125,473 | 1,220 Direct | -13.84% | Disposed | -43.0% (price as of 2026-08-20) |
| Feb. 19, 2021 | BIO | S | 327 | $640.92 | $209,581 | 1,416 Direct | -18.76% | Disposed | -43.1% (price as of 2026-08-20) |
| Feb. 19, 2021 | BIO | S | 400 | $640.94 | $256,376 | 1,743 Direct | -18.67% | Disposed | -43.1% (price as of 2026-08-20) |
| Aug. 14, 2019 | BIO | S | 310 | $320.00 | $99,200 | 103 Direct | -75.06% | Disposed | 13.9% (price as of 2026-08-20) |
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 |
|---|---|---|---|---|---|---|---|
| March 8, 2024 | BIO | Non-Qualified Stock Option (right to buy) | Bio-Rad A Common Stock (2,357) | $343.76 | March 8, 2034 | 2,357 | Acquired |
| Feb. 28, 2024 | BIO | Non-Qualified Stock Option (right to buy) | Bio-Rad A Common Stock (2,500) | $326.15 | Sept. 4, 2028 | 2,500 | Disposed |
| Sept. 4, 2023 | BIO | Restricted Stock Units | Bio-Rad A Common Stock (500) | — | — | 500 | Disposed |
| Sept. 3, 2023 | BIO | Restricted Stock Units | Bio-Rad A Common Stock (464) | — | — | 464 | Disposed |
| Sept. 2, 2023 | BIO | Restricted Stock Units | Bio-Rad A Common Stock (361) | — | — | 361 | Disposed |
| Sept. 1, 2023 | BIO | Restricted Stock Units | Bio-Rad A Common Stock (253) | — | — | 253 | Disposed |
| Sept. 1, 2023 | BIO | Restricted Stock Units | Bio-Rad A Common Stock (347) | — | — | 347 | Disposed |
| Sept. 1, 2023 | BIO | Restricted Stock Units | Bio-Rad A Common Stock (2,003) | — | — | 2,003 | Acquired |
| Aug. 30, 2023 | BIO | Non-Qualified Stock Option (right to buy) | Bio-Rad A Common Stock (2,350) | $215.98 | Sept. 5, 2027 | 2,350 | Disposed |
| March 8, 2023 | BIO | Non-Qualified Stock Option (right to buy) | Bio-Rad A Common Stock (150) | $215.98 | Sept. 5, 2027 | 150 | Disposed |
| March 8, 2023 | BIO | Non-Qualified Stock Option (right to buy) | Bio-Rad A Common Stock (850) | $159.32 | Sept. 7, 2026 | 850 | Disposed |
| Sept. 5, 2022 | BIO | Restricted Stock Units | Bio-Rad A Common Stock (500) | — | — | 500 | Disposed |
| Sept. 4, 2022 | BIO | Restricted Stock Units | Bio-Rad A Common Stock (500) | — | — | 500 | Disposed |
| Sept. 3, 2022 | BIO | Restricted Stock Units | Bio-Rad A Common Stock (464) | — | — | 464 | Disposed |
| Sept. 2, 2022 | BIO | Restricted Stock Units | Bio-Rad A Common Stock (361) | — | — | 361 | Disposed |
| Sept. 1, 2022 | BIO | Restricted Stock Units | Bio-Rad A Common Stock (253) | — | — | 253 | Disposed |
| Sept. 1, 2022 | BIO | Restricted Stock Units | Bio-Rad A Common Stock (1,388) | — | — | 1,388 | Acquired |
| Sept. 7, 2021 | BIO | Restricted Stock Units | Bio-Rad A Common Stock (500) | — | — | 500 | Disposed |
| Sept. 5, 2021 | BIO | Restricted Stock Units | Bio-Rad A Common Stock (500) | — | — | 500 | Disposed |
| Sept. 4, 2021 | BIO | Restricted Stock Units | Bio-Rad A Common Stock (500) | — | — | 500 | Disposed |
| Sept. 3, 2021 | BIO | Restricted Stock Units | Bio-Rad A Common Stock (464) | — | — | 464 | Disposed |
| Sept. 2, 2021 | BIO | Restricted Stock Units | Bio-Rad A Common Stock (361) | — | — | 361 | Disposed |
| Sept. 1, 2021 | BIO | Non-Qualified Stock Option (right to buy) | Bio-Rad A Common Stock (1,013) | $814.95 | Sept. 1, 2031 | 1,013 | Acquired |
| Sept. 1, 2021 | BIO | Restricted Stock Units | Bio-Rad A Common Stock (1,013) | — | — | 1,013 | Acquired |
| Feb. 19, 2021 | BIO | Non-Qualified Stock Option (right to buy) | Bio-Rad A Common Stock (400) | $159.32 | Sept. 7, 2026 | 400 | Disposed |
| Sept. 3, 2020 | BIO | Restricted Stock Units | Bio-Rad A Common Stock (464) | — | — | 464 | Disposed |
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 |
|---|---|---|---|---|
| June 10, 2016 | BIO | No Securities benefically owned | 0 | Direct |