Gregory C Critchfield
Insider
First SEC filing: July 14, 2021 · Latest: July 14, 2021
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| July 10, 2026 | SERA | A | 2,452 | · | · | 2,452 Direct | · | Acquired | (price as of 2026-10-06) |
| July 10, 2026 | SERA | A | 34,494 | · | · | 34,494 Direct | · | Acquired | (price as of 2026-10-06) |
| July 10, 2026 | SERA | A | 1,594 | · | · | 846,886 Direct | +0.19% | Acquired | (price as of 2026-10-06) |
| July 10, 2026 | SERA | A | 22,426 | · | · | 845,292 Direct | +2.73% | Acquired | (price as of 2026-10-06) |
| June 5, 2025 | SERA | A | 25,000 | · | · | 25,000 Direct | · | Acquired | (price as of 2026-10-06) |
| June 5, 2025 | SERA | A | 15,596 | · | · | 822,866 Direct | +1.93% | Acquired | (price as of 2026-10-06) |
| June 6, 2024 | SERA | A | 7,117 | · | · | 807,270 Direct | +0.89% | Acquired | (price as of 2026-10-06) |
| June 6, 2024 | SERA | A | 10,549 | · | · | 10,549 Direct | · | Acquired | (price as of 2026-10-06) |
| June 3, 2024 | SERA | J | 195 | · | · | 800,140 Direct | +0.02% | Acquired | (price as of 2026-10-06) |
| June 3, 2024 | SERA | J | 13 | · | · | 800,153 Direct | 0.00% | Acquired | (price as of 2026-10-06) |
| March 7, 2023 | SERA | A | 62,200 | · | · | 857,145 Direct | +7.82% | Acquired | (price as of 2026-10-06) |
| March 7, 2023 | SERA | A | 98,300 | · | · | 98,300 Direct | · | Acquired | (price as of 2026-10-06) |
| March 23, 2022 | SERA | A | 429,225 | · | · | 429,225 Direct | · | Acquired | (price as of 2026-10-06) |
| July 19, 2021 | SERA | C | 28,730 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| July 19, 2021 | SERA | C | 4,727 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| July 19, 2021 | SERA | C | 11,880 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| July 19, 2021 | SERA | C | 5,253 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| July 19, 2021 | SERA | C | 34,383 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| July 19, 2021 | SERA | C | 28,730 | · | · | 794,945 Direct | +3.75% | Acquired | (price as of 2026-10-06) |
| July 19, 2021 | SERA | C | 4,727 | · | · | 766,215 Direct | +0.62% | Acquired | (price as of 2026-10-06) |
| July 19, 2021 | SERA | C | 11,880 | · | · | 761,488 Direct | +1.58% | Acquired | (price as of 2026-10-06) |
| July 19, 2021 | SERA | C | 5,253 | · | · | 749,608 Direct | +0.71% | Acquired | (price as of 2026-10-06) |
| July 19, 2021 | SERA | C | 34,383 | · | · | 744,355 Direct | +4.84% | Acquired | (price as of 2026-10-06) |
| Sept. 15, 2009 | MYGN | A | 89,139 | · | · | 89,139 Direct | · | Acquired | (price as of 2026-10-06) |
| Sept. 15, 2009 | MYGN | A | 3,861 | · | · | 3,861 Direct | · | Acquired | (price as of 2026-10-06) |
| Aug. 28, 2009 | MYGN | M | 38,702 | · | · | 46,682 Direct | -45.33% | Disposed | (price as of 2026-10-06) |
| Aug. 28, 2009 | MYGN | M | 7,980 | · | · | 85,384 Direct | -8.55% | Disposed | (price as of 2026-10-06) |
| Aug. 28, 2009 | MYGN | S | 38,702 | $30.75 | $1,190,086 | 129,546 Direct | -23.00% | Disposed | -86.1% (price as of 2026-10-06) |
| Aug. 28, 2009 | MYGN | M | 38,702 | $8.86 | $342,900 | 168,248 Direct | +29.88% | Acquired | -51.7% (price as of 2026-10-06) |
| Aug. 28, 2009 | MYGN | S | 7,980 | $30.75 | $245,385 | 129,546 Direct | -5.80% | Disposed | -86.1% (price as of 2026-10-06) |
| Aug. 28, 2009 | MYGN | M | 7,980 | $8.86 | $70,703 | 137,526 Direct | +6.16% | Acquired | -51.7% (price as of 2026-10-06) |
| May 8, 2009 | MYGN | M | 2,636 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| May 8, 2009 | MYGN | M | 2,636 | $12.53 | $33,029 | 127,648 Direct | +2.11% | Acquired | -65.8% (price as of 2026-10-06) |
| Feb. 18, 2009 | MYGN | A | 58,827 | · | · | 58,827 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 18, 2009 | MYGN | A | 1,173 | · | · | 1,173 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 3, 2009 | MYGN | M 10b5-1 | 20,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Feb. 3, 2009 | MYGN | S 10b5-1 | 20,000 | $84.50 | $1,690,000 | 62,506 Direct | -24.24% | Disposed | -89.9% (price as of 2026-10-06) |
| Feb. 3, 2009 | MYGN | M 10b5-1 | 20,000 | $16.64 | $332,800 | 82,506 Direct | +32.00% | Acquired | -48.6% (price as of 2026-10-06) |
| Jan. 29, 2009 | MYGN | M | 14,000 | $4.78 | $66,920 | 62,506 Direct | +28.86% | Acquired | 79.1% (price as of 2026-10-06) |
| Jan. 29, 2009 | MYGN | M | 14,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Jan. 28, 2009 | MYGN | M 10b5-1 | 20,000 | $16.64 | $332,800 | 68,506 Direct | +41.23% | Acquired | -48.6% (price as of 2026-10-06) |
| Jan. 28, 2009 | MYGN | S 10b5-1 | 20,000 | $74.50 | $1,490,000 | 48,506 Direct | -29.19% | Disposed | -88.5% (price as of 2026-10-06) |
| Jan. 28, 2009 | MYGN | M 10b5-1 | 20,000 | · | · | 20,000 Direct | -50.00% | Disposed | (price as of 2026-10-06) |
| Dec. 23, 2008 | MYGN | G | 4,615 | · | · | 48,506 Direct | -8.69% | Disposed | (price as of 2026-10-06) |
| Sept. 17, 2008 | MYGN | M | 1 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Sept. 17, 2008 | MYGN | M | 32,379 | · | · | 1 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Sept. 17, 2008 | MYGN | S | 1 | $66.08 | $66 | 53,121 Direct | 0.00% | Disposed | -87.0% (price as of 2026-10-06) |
| Sept. 17, 2008 | MYGN | M | 1 | $12.54 | $13 | 53,122 Direct | 0.00% | Acquired | -31.7% (price as of 2026-10-06) |
| Sept. 17, 2008 | MYGN | S | 32,379 | $66.08 | $2,139,604 | 53,121 Direct | -37.87% | Disposed | -87.0% (price as of 2026-10-06) |
| Sept. 17, 2008 | MYGN | M | 32,379 | $12.54 | $406,033 | 85,500 Direct | +60.95% | Acquired | -31.7% (price as of 2026-10-06) |
| Sept. 10, 2008 | MYGN | A | 65,000 | · | · | 65,000 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 28, 2008 | MYGN | A | 62,338 | · | · | 62,338 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 28, 2008 | MYGN | A | 2,662 | · | · | 2,662 Direct | · | Acquired | (price as of 2026-10-06) |
| Jan. 25, 2008 | MYGN | M | 9,322 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Jan. 25, 2008 | MYGN | M | 9,322 | $7.03 | $65,534 | 53,121 Direct | +21.28% | Acquired | 21.8% (price as of 2026-10-06) |
| Dec. 20, 2007 | MYGN | M | 4,900 | · | · | 9,322 Direct | -34.45% | Disposed | (price as of 2026-10-06) |
| Dec. 20, 2007 | MYGN | G | 6,916 | · | · | 43,799 Direct | -13.64% | Disposed | (price as of 2026-10-06) |
| Dec. 20, 2007 | MYGN | M | 4,900 | $7.03 | $34,447 | 50,715 Direct | +10.70% | Acquired | 21.8% (price as of 2026-10-06) |
| Sept. 26, 2007 | MYGN | A | 50,000 | · | · | 50,000 Direct | · | Acquired | (price as of 2026-10-06) |
| Sept. 26, 2007 | MYGN | M 10b5-1 | 9,342 | $50.00 | $467,100 | 0 Direct | -100.00% | Disposed | -82.9% (price as of 2026-10-06) |
| Sept. 26, 2007 | MYGN | S 10b5-1 | 9,342 | $50.00 | $467,100 | 45,815 Direct | -16.94% | Disposed | -82.9% (price as of 2026-10-06) |
| Sept. 26, 2007 | MYGN | M 10b5-1 | 9,342 | $4.78 | $44,655 | 55,157 Direct | +20.39% | Acquired | 79.1% (price as of 2026-10-06) |
| Sept. 25, 2007 | MYGN | M 10b5-1 | 18,658 | $50.00 | $932,900 | 9,342 Direct | -66.64% | Disposed | -82.9% (price as of 2026-10-06) |
| Sept. 25, 2007 | MYGN | S 10b5-1 | 18,658 | $50.00 | $932,900 | 45,815 Direct | -28.94% | Disposed | -82.9% (price as of 2026-10-06) |
| Sept. 25, 2007 | MYGN | M 10b5-1 | 18,658 | $4.78 | $89,185 | 64,473 Direct | +40.72% | Acquired | 79.1% (price as of 2026-10-06) |
| Feb. 21, 2007 | MYGN | A | 31,096 | · | · | 31,096 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 21, 2007 | MYGN | A | 2,904 | · | · | 2,904 Direct | · | Acquired | (price as of 2026-10-06) |
| Sept. 6, 2006 | MYGN | A | 32,000 | · | · | 32,000 Direct | · | Acquired | (price as of 2026-10-06) |
| April 17, 2006 | MYGN | M 10b5-1 | 35,556 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| April 17, 2006 | MYGN | S 10b5-1 | 35,556 | $24.55 | $872,900 | 43,720 Direct | -44.85% | Disposed | -65.1% (price as of 2026-10-06) |
| April 17, 2006 | MYGN | M 10b5-1 | 35,556 | $7.03 | $249,959 | 79,276 Direct | +81.33% | Acquired | 21.8% (price as of 2026-10-06) |
| Feb. 16, 2006 | MYGN | A | 27,902 | · | · | 27,902 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 16, 2006 | MYGN | A | 4,098 | · | · | 4,098 Direct | · | Acquired | (price as of 2026-10-06) |
| Sept. 14, 2005 | MYGN | A | 20,548 | · | · | 20,548 Direct | · | Acquired | (price as of 2026-10-06) |
| Sept. 14, 2005 | MYGN | A | 19,452 | · | · | 19,452 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 17, 2005 | MYGN | A | 40,480 | · | · | 40,480 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 17, 2005 | MYGN | A | 4,520 | · | · | 4,520 Direct | · | Acquired | (price as of 2026-10-06) |
| Sept. 8, 2004 | MYGN | A | 40,000 | · | · | 40,000 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 19, 2004 | MYGN | A | 24,108 | · | · | 24,108 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 19, 2004 | MYGN | A | 5,892 | · | · | 5,892 Direct | · | Acquired | (price as of 2026-10-06) |
| Sept. 9, 2003 | MYGN | A | 32,379 | · | · | 32,379 Direct | · | Acquired | (price as of 2026-10-06) |
| Sept. 9, 2003 | MYGN | A | 2,621 | · | · | 2,621 Direct | · | Acquired | (price as of 2026-10-06) |
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 |
|---|---|---|---|---|---|---|---|
| July 10, 2026 | SERA | Stock Option (right to buy) | Class A Common Stock | $1.97 | July 10, 2036 | 2,452 | Acquired |
| July 10, 2026 | SERA | Stock Option (right to buy) | Class A Common Stock | $1.97 | July 10, 2036 | 34,494 | Acquired |
| June 5, 2025 | SERA | Stock Option (right to buy) | Class A Common Stock | $1.60 | June 5, 2035 | 25,000 | Acquired |
| June 6, 2024 | SERA | Stock Option (right to buy) | Class A Common Stock | $8.43 | June 6, 2034 | 10,549 | Acquired |
| March 7, 2023 | SERA | Stock Option (right to buy) | Class A Common Stock | $3.72 | March 7, 2033 | 98,300 | Acquired |
| March 23, 2022 | SERA | Stock Option (right to buy) | Class A Common Stock | $3.75 | March 23, 2032 | 429,225 | Acquired |
| July 19, 2021 | SERA | Series D Preferred Stock | Class A Common Stock | · | · | 28,730 | Disposed |
| July 19, 2021 | SERA | Series C-1 Preferred Stock | Class A Common Stock | · | · | 4,727 | Disposed |
| July 19, 2021 | SERA | Series B-2 Preferred Stock | Class A Common Stock | · | · | 11,880 | Disposed |
| July 19, 2021 | SERA | Series B-1 Preferred Stock | Class A Common Stock | · | · | 5,253 | Disposed |
| July 19, 2021 | SERA | Series A-2 Preferred Stock | Class A Common Stock | · | · | 34,383 | Disposed |
| Sept. 15, 2009 | MYGN | Non-Qualified Stock Option (right to buy) | Common Stock | $30.34 | Sept. 15, 2019 | 89,139 | Acquired |
| Sept. 15, 2009 | MYGN | Incentive Stock Option (right to buy) | Common Stock | $30.34 | Sept. 15, 2019 | 3,861 | Acquired |
| Aug. 28, 2009 | MYGN | Non-Qualified Stock Option (right to buy) | Common Stock | $8.86 | April 20, 2010 | 38,702 | Disposed |
| Aug. 28, 2009 | MYGN | Non-Qualified Stock Option (right to buy) | Common Stock | $8.86 | April 20, 2010 | 7,980 | Disposed |
| May 8, 2009 | MYGN | Incentive Stock Option (right to buy) | Common Stock | $12.53 | April 20, 2010 | 2,636 | Disposed |
| Feb. 18, 2009 | MYGN | Non-Qualified Stock Option (right to buy) | Common Stock | $85.20 | Feb. 18, 2019 | 58,827 | Acquired |
| Feb. 18, 2009 | MYGN | Incentive Stock Option (right to buy) | Common Stock | $85.20 | Feb. 18, 2019 | 1,173 | Acquired |
| Feb. 3, 2009 | MYGN | Non-Qualified Stock Option (right to buy) | Common Stock | $16.64 | Sept. 8, 2014 | 20,000 | Disposed |
| Jan. 29, 2009 | MYGN | Incentive Stock Option (right to buy) | Common Stock | $4.78 | June 17, 2009 | 14,000 | Disposed |
| Jan. 28, 2009 | MYGN | Non-Qualified Stock Option (right to buy) | Common Stock | $16.64 | Sept. 8, 2014 | 20,000 | Disposed |
| Sept. 17, 2008 | MYGN | Non-Qualified Stock Option (right to buy) | Common Stock | $12.54 | Sept. 9, 2013 | 1 | Disposed |
| Sept. 17, 2008 | MYGN | Non-Qualified Stock Option (right to buy) | Common Stock | $12.54 | Sept. 9, 2013 | 32,379 | Disposed |
| Sept. 10, 2008 | MYGN | Non-Qualified Stock Option (right to buy) | Common Stock | $64.88 | Sept. 10, 2018 | 65,000 | Acquired |
| Feb. 28, 2008 | MYGN | Non-Qualified Stock Option (right to buy) | Common Stock | $37.56 | Feb. 28, 2018 | 62,338 | Acquired |
| Feb. 28, 2008 | MYGN | Incentive Stock Option (right to buy) | Common Stock | $37.56 | Feb. 28, 2018 | 2,662 | Acquired |
| Jan. 25, 2008 | MYGN | Incentive Stock Option (right to buy) | Common Stock | $7.03 | July 31, 2008 | 9,322 | Disposed |
| Dec. 20, 2007 | MYGN | Incentive Stock Option (right to buy) | Common Stock | $7.03 | July 31, 2008 | 4,900 | Disposed |
| Sept. 26, 2007 | MYGN | Non-Qualified Stock Option (right to buy) | Common Stock | $51.08 | Sept. 26, 2017 | 50,000 | Acquired |
| Sept. 26, 2007 | MYGN | Non-Qualified Stock Option (right to buy) | Common Stock | $4.78 | June 17, 2009 | 9,342 | Disposed |
| Sept. 25, 2007 | MYGN | Non-Qualified Stock Option (right to buy) | Common Stock | $4.78 | June 17, 2009 | 18,658 | Disposed |
| Feb. 21, 2007 | MYGN | Non-Qualified Stock Option (right to buy) | Common Stock | $34.43 | Feb. 21, 2017 | 31,096 | Acquired |
| Feb. 21, 2007 | MYGN | Incentive Stock Option (right to buy) | Common Stock | $34.43 | Feb. 21, 2017 | 2,904 | Acquired |
| Sept. 6, 2006 | MYGN | Non-Qualified Stock Option (right to buy) | Common Stock | $25.57 | Sept. 6, 2016 | 32,000 | Acquired |
| April 17, 2006 | MYGN | Non-Qualified Stock Option (right to buy) | Common Stock | $7.03 | July 31, 2008 | 35,556 | Disposed |
| Feb. 16, 2006 | MYGN | Non-Qualified Stock Option (right to buy) | Common Stock | $24.40 | Feb. 16, 2016 | 27,902 | Acquired |
| Feb. 16, 2006 | MYGN | Incentive Stock Option (right to buy) | Common Stock | $24.40 | Feb. 16, 2016 | 4,098 | Acquired |
| Sept. 14, 2005 | MYGN | Non-Qualified Stock Option (right to buy) | Common Stock | $20.56 | Sept. 14, 2015 | 20,548 | Acquired |
| Sept. 14, 2005 | MYGN | Incentive Stock Option (right to buy) | Common Stock | $20.56 | Sept. 14, 2015 | 19,452 | Acquired |
| Feb. 17, 2005 | MYGN | Non-Qualified Stock Option (right to buy) | Common Stock | $22.12 | Feb. 17, 2015 | 40,480 | Acquired |
| Feb. 17, 2005 | MYGN | Incentive Stock Option (right to buy) | Common Stock | $22.12 | Feb. 17, 2015 | 4,520 | Acquired |
| Sept. 8, 2004 | MYGN | Non-Qualified Stock Option (right to buy) | Common Stock | $16.64 | Sept. 8, 2014 | 40,000 | Acquired |
| Feb. 19, 2004 | MYGN | Non-Qualified Stock Option (right to buy) | Common Stock | $16.97 | Feb. 19, 2014 | 24,108 | Acquired |
| Feb. 19, 2004 | MYGN | Incentive Stock Option (right to buy) | Common Stock | $16.97 | Feb. 19, 2014 | 5,892 | Acquired |
| Sept. 9, 2003 | MYGN | Non-Qualified Stock Option (right to buy) | Common Stock | $12.54 | Sept. 9, 2013 | 32,379 | Acquired |
| Sept. 9, 2003 | MYGN | Incentive Stock Option (right to buy) | Common Stock | $12.54 | Sept. 9, 2013 | 2,621 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 12 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| July 14, 2021 | SERA | Class A Common Stock | 79,140 | Direct |
| July 14, 2021 | SERA | Class A Common Stock | 630,832 | Indirect |
| July 14, 2021 | SERA | Series A-2 Preferred Stock | 34,383 | Direct |
| July 14, 2021 | SERA | Series B-1 Preferred Stock | 5,253 | Direct |
| July 14, 2021 | SERA | Series B-2 Preferred Stock | 11,880 | Direct |
| July 14, 2021 | SERA | Series C-1 Preferred Stock | 4,727 | Direct |
| July 14, 2021 | SERA | Series D Preferred Stock | 28,730 | Direct |
| July 14, 2021 | SERA | Stock Option (right to buy) | 300,610 | Direct |
| July 14, 2021 | SERA | Stock Option (right to buy) | 462,338 | Direct |
| July 14, 2021 | SERA | Stock Option (right to buy) | 98,330 | Direct |
| July 14, 2021 | SERA | Warrant (right to buy) | 4,412 | Indirect |
| July 14, 2021 | SERA | Warrant (right to buy) | 4,412 | Indirect |
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 |
|---|---|---|---|---|---|---|---|---|
| 2007 | $465,478 | $350,761 | · | $378,292 | · | · | $9,084 | $1,203,615 |
| 2002 | · | · | · | · | · | · | · | · |
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2023 | $313,023 | · | $231,384 | $243,017 | $131,400 | · | $594,025 | $1,512,849 |
| 2022 | $584,000 | · | · | $989,624 | $206,736 | · | · | $1,780,360 |
| 2021 | $500,100 | · | · | $453,519 | $275,000 | · | · | $1,228,619 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.