Gregory C Critchfield

CIK 1191080 · View on SEC EDGAR ↗

Insider

First SEC filing: July 14, 2021 · Latest: July 14, 2021

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) 0 sells (S) Net: $0 + 66 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

66 other filings hidden

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 2026-08-20)
July 10, 2026	SERA	A	34,494	—	—	34,494 Direct	—	Acquired	(price as of 2026-08-20)
July 10, 2026	SERA	A	1,594	—	—	846,886 Direct	+0.19%	Acquired	(price as of 2026-08-20)
July 10, 2026	SERA	A	22,426	—	—	845,292 Direct	+2.73%	Acquired	(price as of 2026-08-20)
June 5, 2025	SERA	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-20)
June 5, 2025	SERA	A	15,596	—	—	822,866 Direct	+1.93%	Acquired	(price as of 2026-08-20)
July 19, 2021	SERA	C	28,730	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
July 19, 2021	SERA	C	4,727	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
July 19, 2021	SERA	C	11,880	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
July 19, 2021	SERA	C	5,253	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
July 19, 2021	SERA	C	34,383	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
July 19, 2021	SERA	C	28,730	—	—	794,945 Direct	+3.75%	Acquired	(price as of 2026-08-20)
July 19, 2021	SERA	C	4,727	—	—	766,215 Direct	+0.62%	Acquired	(price as of 2026-08-20)
July 19, 2021	SERA	C	11,880	—	—	761,488 Direct	+1.58%	Acquired	(price as of 2026-08-20)
July 19, 2021	SERA	C	5,253	—	—	749,608 Direct	+0.71%	Acquired	(price as of 2026-08-20)
July 19, 2021	SERA	C	34,383	—	—	744,355 Direct	+4.84%	Acquired	(price as of 2026-08-20)
Sept. 15, 2009	MYGN	A	89,139	—	—	89,139 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 15, 2009	MYGN	A	3,861	—	—	3,861 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 28, 2009	MYGN	M	38,702	—	—	46,682 Direct	-45.33%	Disposed	(price as of 2026-08-20)
Aug. 28, 2009	MYGN	M	7,980	—	—	85,384 Direct	-8.55%	Disposed	(price as of 2026-08-20)
Aug. 28, 2009	MYGN	S	38,702	$30.75	$1,190,086	129,546 Direct	-23.00%	Disposed	-89.5% (price as of 2026-08-20)
Aug. 28, 2009	MYGN	M	38,702	$8.86	$342,900	168,248 Direct	+29.88%	Acquired	-63.5% (price as of 2026-08-20)
Aug. 28, 2009	MYGN	S	7,980	$30.75	$245,385	129,546 Direct	-5.80%	Disposed	-89.5% (price as of 2026-08-20)
Aug. 28, 2009	MYGN	M	7,980	$8.86	$70,703	137,526 Direct	+6.16%	Acquired	-63.5% (price as of 2026-08-20)
May 8, 2009	MYGN	M	2,636	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 8, 2009	MYGN	M	2,636	$12.53	$33,029	127,648 Direct	+2.11%	Acquired	-74.2% (price as of 2026-08-20)
Feb. 18, 2009	MYGN	A	58,827	—	—	58,827 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 18, 2009	MYGN	A	1,173	—	—	1,173 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 3, 2009	MYGN	M 10b5-1	20,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 3, 2009	MYGN	S 10b5-1	20,000	$84.50	$1,690,000	62,506 Direct	-24.24%	Disposed	-92.4% (price as of 2026-08-20)
Feb. 3, 2009	MYGN	M 10b5-1	20,000	$16.64	$332,800	82,506 Direct	+32.00%	Acquired	-61.2% (price as of 2026-08-20)
Jan. 29, 2009	MYGN	M	14,000	$4.78	$66,920	62,506 Direct	+28.86%	Acquired	35.1% (price as of 2026-08-20)
Jan. 29, 2009	MYGN	M	14,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Jan. 28, 2009	MYGN	M 10b5-1	20,000	$16.64	$332,800	68,506 Direct	+41.23%	Acquired	-61.2% (price as of 2026-08-20)
Jan. 28, 2009	MYGN	S 10b5-1	20,000	$74.50	$1,490,000	48,506 Direct	-29.19%	Disposed	-91.3% (price as of 2026-08-20)
Jan. 28, 2009	MYGN	M 10b5-1	20,000	—	—	20,000 Direct	-50.00%	Disposed	(price as of 2026-08-20)
Dec. 23, 2008	MYGN	G	4,615	—	—	48,506 Direct	-8.69%	Disposed	(price as of 2026-08-20)
Sept. 17, 2008	MYGN	M	1	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Sept. 17, 2008	MYGN	M	32,379	—	—	1 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Sept. 17, 2008	MYGN	S	1	$66.08	$66	53,121 Direct	0.00%	Disposed	-90.2% (price as of 2026-08-20)
Sept. 17, 2008	MYGN	M	1	$12.54	$13	53,122 Direct	0.00%	Acquired	-48.5% (price as of 2026-08-20)
Sept. 17, 2008	MYGN	S	32,379	$66.08	$2,139,604	53,121 Direct	-37.87%	Disposed	-90.2% (price as of 2026-08-20)
Sept. 17, 2008	MYGN	M	32,379	$12.54	$406,033	85,500 Direct	+60.95%	Acquired	-48.5% (price as of 2026-08-20)
Sept. 10, 2008	MYGN	A	65,000	—	—	65,000 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 28, 2008	MYGN	A	62,338	—	—	62,338 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 28, 2008	MYGN	A	2,662	—	—	2,662 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 25, 2008	MYGN	M	9,322	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Jan. 25, 2008	MYGN	M	9,322	$7.03	$65,534	53,121 Direct	+21.28%	Acquired	-8.1% (price as of 2026-08-20)
Dec. 20, 2007	MYGN	M	4,900	—	—	9,322 Direct	-34.45%	Disposed	(price as of 2026-08-20)
Dec. 20, 2007	MYGN	G	6,916	—	—	43,799 Direct	-13.64%	Disposed	(price as of 2026-08-20)
Dec. 20, 2007	MYGN	M	4,900	$7.03	$34,447	50,715 Direct	+10.70%	Acquired	-8.1% (price as of 2026-08-20)
Sept. 26, 2007	MYGN	A	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 26, 2007	MYGN	M 10b5-1	9,342	$50.00	$467,100	0 Direct	-100.00%	Disposed	-87.1% (price as of 2026-08-20)
Sept. 26, 2007	MYGN	S 10b5-1	9,342	$50.00	$467,100	45,815 Direct	-16.94%	Disposed	-87.1% (price as of 2026-08-20)
Sept. 26, 2007	MYGN	M 10b5-1	9,342	$4.78	$44,655	55,157 Direct	+20.39%	Acquired	35.1% (price as of 2026-08-20)
Sept. 25, 2007	MYGN	M 10b5-1	18,658	$50.00	$932,900	9,342 Direct	-66.64%	Disposed	-87.1% (price as of 2026-08-20)
Sept. 25, 2007	MYGN	S 10b5-1	18,658	$50.00	$932,900	45,815 Direct	-28.94%	Disposed	-87.1% (price as of 2026-08-20)
Sept. 25, 2007	MYGN	M 10b5-1	18,658	$4.78	$89,185	64,473 Direct	+40.72%	Acquired	35.1% (price as of 2026-08-20)
Feb. 21, 2007	MYGN	A	31,096	—	—	31,096 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 21, 2007	MYGN	A	2,904	—	—	2,904 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 6, 2006	MYGN	A	32,000	—	—	32,000 Direct	—	Acquired	(price as of 2026-08-20)
April 17, 2006	MYGN	M 10b5-1	35,556	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
April 17, 2006	MYGN	S 10b5-1	35,556	$24.55	$872,900	43,720 Direct	-44.85%	Disposed	-73.7% (price as of 2026-08-20)
April 17, 2006	MYGN	M 10b5-1	35,556	$7.03	$249,959	79,276 Direct	+81.33%	Acquired	-8.1% (price as of 2026-08-20)
Feb. 16, 2006	MYGN	A	27,902	—	—	27,902 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 16, 2006	MYGN	A	4,098	—	—	4,098 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 14, 2005	MYGN	A	20,548	—	—	20,548 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 14, 2005	MYGN	A	19,452	—	—	19,452 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 17, 2005	MYGN	A	40,480	—	—	40,480 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 17, 2005	MYGN	A	4,520	—	—	4,520 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 8, 2004	MYGN	A	40,000	—	—	40,000 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 19, 2004	MYGN	A	24,108	—	—	24,108 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 19, 2004	MYGN	A	5,892	—	—	5,892 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 9, 2003	MYGN	A	32,379	—	—	32,379 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 9, 2003	MYGN	A	2,621	—	—	2,621 Direct	—	Acquired	(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
July 10, 2026	SERA	Stock Option (right to buy)	Class A Common Stock (2,452)	$1.97	July 10, 2036	2,452	Acquired
July 10, 2026	SERA	Stock Option (right to buy)	Class A Common Stock (34,494)	$1.97	July 10, 2036	34,494	Acquired
June 5, 2025	SERA	Stock Option (right to buy)	Class A Common Stock (25,000)	$1.60	June 5, 2035	25,000	Acquired
July 19, 2021	SERA	Series D Preferred Stock	Class A Common Stock (28,730)	—	—	28,730	Disposed
July 19, 2021	SERA	Series C-1 Preferred Stock	Class A Common Stock (4,727)	—	—	4,727	Disposed
July 19, 2021	SERA	Series B-2 Preferred Stock	Class A Common Stock (11,880)	—	—	11,880	Disposed
July 19, 2021	SERA	Series B-1 Preferred Stock	Class A Common Stock (5,253)	—	—	5,253	Disposed
July 19, 2021	SERA	Series A-2 Preferred Stock	Class A Common Stock (34,383)	—	—	34,383	Disposed
Sept. 15, 2009	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (89,139)	$30.34	Sept. 15, 2019	89,139	Acquired
Sept. 15, 2009	MYGN	Incentive Stock Option (right to buy)	Common Stock (3,861)	$30.34	Sept. 15, 2019	3,861	Acquired
Aug. 28, 2009	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (38,702)	$8.86	April 20, 2010	38,702	Disposed
Aug. 28, 2009	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (7,980)	$8.86	April 20, 2010	7,980	Disposed
May 8, 2009	MYGN	Incentive Stock Option (right to buy)	Common Stock (2,636)	$12.53	April 20, 2010	2,636	Disposed
Feb. 18, 2009	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (58,827)	$85.20	Feb. 18, 2019	58,827	Acquired
Feb. 18, 2009	MYGN	Incentive Stock Option (right to buy)	Common Stock (1,173)	$85.20	Feb. 18, 2019	1,173	Acquired
Feb. 3, 2009	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (20,000)	$16.64	Sept. 8, 2014	20,000	Disposed
Jan. 29, 2009	MYGN	Incentive Stock Option (right to buy)	Common Stock (14,000)	$4.78	June 17, 2009	14,000	Disposed
Jan. 28, 2009	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (20,000)	$16.64	Sept. 8, 2014	20,000	Disposed
Sept. 17, 2008	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (1)	$12.54	Sept. 9, 2013	1	Disposed
Sept. 17, 2008	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (32,379)	$12.54	Sept. 9, 2013	32,379	Disposed
Sept. 10, 2008	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (65,000)	$64.88	Sept. 10, 2018	65,000	Acquired
Feb. 28, 2008	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (62,338)	$37.56	Feb. 28, 2018	62,338	Acquired
Feb. 28, 2008	MYGN	Incentive Stock Option (right to buy)	Common Stock (2,662)	$37.56	Feb. 28, 2018	2,662	Acquired
Jan. 25, 2008	MYGN	Incentive Stock Option (right to buy)	Common Stock (9,322)	$7.03	July 31, 2008	9,322	Disposed
Dec. 20, 2007	MYGN	Incentive Stock Option (right to buy)	Common Stock (4,900)	$7.03	July 31, 2008	4,900	Disposed
Sept. 26, 2007	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (50,000)	$51.08	Sept. 26, 2017	50,000	Acquired
Sept. 26, 2007	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (9,342)	$4.78	June 17, 2009	9,342	Disposed
Sept. 25, 2007	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (18,658)	$4.78	June 17, 2009	18,658	Disposed
Feb. 21, 2007	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (31,096)	$34.43	Feb. 21, 2017	31,096	Acquired
Feb. 21, 2007	MYGN	Incentive Stock Option (right to buy)	Common Stock (2,904)	$34.43	Feb. 21, 2017	2,904	Acquired
Sept. 6, 2006	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (32,000)	$25.57	Sept. 6, 2016	32,000	Acquired
April 17, 2006	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (35,556)	$7.03	July 31, 2008	35,556	Disposed
Feb. 16, 2006	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (27,902)	$24.40	Feb. 16, 2016	27,902	Acquired
Feb. 16, 2006	MYGN	Incentive Stock Option (right to buy)	Common Stock (4,098)	$24.40	Feb. 16, 2016	4,098	Acquired
Sept. 14, 2005	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (20,548)	$20.56	Sept. 14, 2015	20,548	Acquired
Sept. 14, 2005	MYGN	Incentive Stock Option (right to buy)	Common Stock (19,452)	$20.56	Sept. 14, 2015	19,452	Acquired
Feb. 17, 2005	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (40,480)	$22.12	Feb. 17, 2015	40,480	Acquired
Feb. 17, 2005	MYGN	Incentive Stock Option (right to buy)	Common Stock (4,520)	$22.12	Feb. 17, 2015	4,520	Acquired
Sept. 8, 2004	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (40,000)	$16.64	Sept. 8, 2014	40,000	Acquired
Feb. 19, 2004	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (24,108)	$16.97	Feb. 19, 2014	24,108	Acquired
Feb. 19, 2004	MYGN	Incentive Stock Option (right to buy)	Common Stock (5,892)	$16.97	Feb. 19, 2014	5,892	Acquired
Sept. 9, 2003	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (32,379)	$12.54	Sept. 9, 2013	32,379	Acquired
Sept. 9, 2003	MYGN	Incentive Stock Option (right to buy)	Common Stock (2,621)	$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→ Class A Common Stock (34,383)	34,383	Direct
July 14, 2021	SERA	Series B-1 Preferred Stock→ Class A Common Stock (5,253)	5,253	Direct
July 14, 2021	SERA	Series B-2 Preferred Stock→ Class A Common Stock (11,880)	11,880	Direct
July 14, 2021	SERA	Series C-1 Preferred Stock→ Class A Common Stock (4,727)	4,727	Direct
July 14, 2021	SERA	Series D Preferred Stock→ Class A Common Stock (28,730)	28,730	Direct
July 14, 2021	SERA	Stock Option (right to buy)→ Class A Common Stock (300,610)	300,610	Direct
July 14, 2021	SERA	Stock Option (right to buy)→ Class A Common Stock (462,338)	462,338	Direct
July 14, 2021	SERA	Stock Option (right to buy)→ Class A Common Stock (98,330)	98,330	Direct
July 14, 2021	SERA	Warrant (right to buy)→ Class A Common Stock (4,412)	4,412	Indirect
July 14, 2021	SERA	Warrant (right to buy)→ Class A Common Stock (4,412)	4,412	Indirect

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

MYGN

M.D. President, Myriad Genetic Laboratories, Inc.

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	—	—	—	—	—	—	—	—

SERA

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.