Rebecca Chambers

Insider

First SEC filing: April 16, 2026 · Latest: June 4, 2026

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: $-78,854 + 35 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

35 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 2, 2026	VCYT	S	1,600	$49.28	$78,854	173,280	—	—	-15.2% (price as of 2026-08-20)
June 2, 2026	VCYT	F	3,693	$47.80	$176,525	173,280	—	—	-12.5% (price as of 2026-08-20)
Sept. 2, 2025	VCYT	F	5,371	$30.11	$161,721	133,158 Direct	-3.88%	Disposed	38.9% (price as of 2026-08-20)
June 2, 2025	VCYT	F	5,370	$26.74	$143,594	138,529 Direct	-3.73%	Disposed	56.4% (price as of 2026-08-20)
March 6, 2025	VCYT	A	30,200	—	—	143,899 Direct	+26.56%	Acquired	(price as of 2026-08-20)
March 2, 2025	VCYT	F	11,070	$34.76	$384,793	113,699 Direct	-8.87%	Disposed	20.3% (price as of 2026-08-20)
Feb. 27, 2025	VCYT	A	23,170	—	—	136,680 Direct	+20.41%	Acquired	(price as of 2026-08-20)
Feb. 27, 2025	VCYT	F	11,911	$33.84	$403,068	124,769 Direct	-8.71%	Disposed	23.6% (price as of 2026-08-20)
Feb. 3, 2025	VCYT	S 10b5-1	527	$43.85	$23,109	113,510 Direct	-0.46%	Disposed	-4.7% (price as of 2026-08-20)
Dec. 3, 2024	VCYT	S 10b5-1	7,000	$43.23	$302,610	114,037 Direct	-5.78%	Disposed	-3.3% (price as of 2026-08-20)
Dec. 2, 2024	VCYT	F	3,464	$44.12	$152,832	121,037 Direct	-2.78%	Disposed	-5.2% (price as of 2026-08-20)
Nov. 12, 2024	VCYT	S 10b5-1	15,275	$38.34	$585,644	124,501 Direct	-10.93%	Disposed	9.1% (price as of 2026-08-20)
Sept. 2, 2024	VCYT	F	3,464	$31.55	$109,289	139,776 Direct	-2.42%	Disposed	32.5% (price as of 2026-08-20)
June 2, 2024	VCYT	F	3,462	$20.75	$71,836	143,240 Direct	-2.36%	Disposed	101.5% (price as of 2026-08-20)
March 15, 2024	VCYT	A	4,318	—	—	148,891 Direct	+2.99%	Acquired	(price as of 2026-08-20)
March 15, 2024	VCYT	F	2,189	$21.10	$46,188	146,702 Direct	-1.47%	Disposed	98.2% (price as of 2026-08-20)
March 6, 2024	VCYT	A	59,856	—	—	144,573 Direct	+70.65%	Acquired	(price as of 2026-08-20)
March 2, 2024	VCYT	F	6,112	$24.00	$146,688	84,717 Direct	-6.73%	Disposed	74.2% (price as of 2026-08-20)
Dec. 2, 2023	VCYT	F	1,800	$26.54	$47,772	90,829 Direct	-1.94%	Disposed	57.5% (price as of 2026-08-20)
Sept. 2, 2023	VCYT	F	3,652	$26.70	$97,508	92,629 Direct	-3.79%	Disposed	56.6% (price as of 2026-08-20)
June 2, 2023	VCYT	F	1,183	$26.72	$31,610	95,754 Direct	-1.22%	Disposed	56.5% (price as of 2026-08-20)
March 6, 2023	VCYT	A	26,014	—	—	96,937 Direct	+36.68%	Acquired	(price as of 2026-08-20)
March 6, 2023	VCYT	A	42,956	—	—	42,956 Direct	—	Acquired	(price as of 2026-08-20)
March 2, 2023	VCYT	F	2,726	$24.10	$65,697	70,923 Direct	-3.70%	Disposed	73.5% (price as of 2026-08-20)
Dec. 2, 2022	VCYT	F	735	$29.14	$21,418	72,998 Direct	-1.00%	Disposed	43.5% (price as of 2026-08-20)
Sept. 2, 2022	VCYT	F	3,023	$19.18	$57,981	73,733 Direct	-3.94%	Disposed	118.0% (price as of 2026-08-20)
Aug. 5, 2022	VCYT	A	21,404	—	—	76,756 Direct	+38.67%	Acquired	(price as of 2026-08-20)
Aug. 5, 2022	VCYT	A	36,496	—	—	36,496 Direct	—	Acquired	(price as of 2026-08-20)
March 3, 2022	VCYT	A	20,728	—	—	54,728 Direct	+60.96%	Acquired	(price as of 2026-08-20)
March 3, 2022	VCYT	A	37,773	—	—	37,773 Direct	—	Acquired	(price as of 2026-08-20)
July 19, 2021	VCYT	A	34,000	—	—	34,000 Direct	—	Acquired	(price as of 2026-08-20)
July 19, 2021	VCYT	A	67,000	—	—	67,000 Direct	—	Acquired	(price as of 2026-08-20)
April 27, 2021	OM	M	16,727	—	—	111,199 Direct	-13.08%	Disposed	(price as of 2026-08-20)
April 27, 2021	OM	S 10b5-1	8,228	$56.89	$468,091	13,597 Direct	-37.70%	Disposed	-99.5% (price as of 2026-08-20)
April 27, 2021	OM	S 10b5-1	8,499	$56.33	$478,749	21,825 Direct	-28.03%	Disposed	-99.5% (price as of 2026-08-20)
April 27, 2021	OM	M	16,727	$6.25	$104,544	30,324 Direct	+123.02%	Acquired	-95.4% (price as of 2026-08-20)
March 25, 2021	OM	M	16,727	—	—	127,926 Direct	-11.56%	Disposed	(price as of 2026-08-20)
March 25, 2021	OM	S 10b5-1	13,135	$50.16	$658,852	13,597 Direct	-49.14%	Disposed	-99.4% (price as of 2026-08-20)
March 25, 2021	OM	S 10b5-1	3,592	$49.11	$176,403	26,732 Direct	-11.85%	Disposed	-99.4% (price as of 2026-08-20)
March 25, 2021	OM	M	16,727	$6.25	$104,544	30,324 Direct	+123.02%	Acquired	-95.4% (price as of 2026-08-20)
March 15, 2021	OM	A	27,037	—	—	27,037 Direct	—	Acquired	(price as of 2026-08-20)
March 15, 2021	OM	A	27,037	—	—	27,037 Direct	—	Acquired	(price as of 2026-08-20)
March 15, 2021	OM	A	13,597	—	—	13,597 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
March 6, 2023	VCYT	Stock Option (right to buy)	Common Stock (42,956)	$23.73	March 6, 2033	42,956	Acquired
Aug. 5, 2022	VCYT	Common Stock	Stock Option (right to buy) (36,496)	$27.90	Aug. 5, 2032	36,496	Acquired
March 3, 2022	VCYT	Stock Option (right to buy)	Common Stock (37,773)	$26.02	March 3, 2032	37,773	Acquired
July 19, 2021	VCYT	Stock Option (right to buy)	Common Stock (67,000)	$36.59	July 19, 2031	67,000	Acquired
April 27, 2021	OM	Stock Option (Right to Buy)	Common Stock (16,727)	$6.25	Sept. 10, 2029	16,727	Disposed
March 25, 2021	OM	Stock Option (Right to Buy)	Common Stock (16,727)	—	Sept. 10, 2029	16,727	Disposed
March 15, 2021	OM	Stock Option (Right to Buy)	Common Stock (27,037)	—	March 14, 2031	27,037	Acquired
March 15, 2021	OM	Stock Option (Right to Buy)	Common Stock (27,037)	$25.89	March 14, 2031	27,037	Acquired

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

Initial ownership (Form 3) 7 holdings

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

Date	Ticker	Security	Shares	Ownership
April 16, 2026	ALMR	Stock Option (Right to Buy)→ Class B Common Stock (140,612)	140,612	Direct
Sept. 14, 2020	OM	Stock Option (Right to Buy)→ Common Stock (144,653)	144,653	Direct
Sept. 14, 2020	OM	Performance Stock Option (Right to Buy)→ Common Stock (120,545)	120,545	Direct
Sept. 14, 2020	OM	Performance Stock Option (Right to Buy)→ Common Stock (96,436)	96,436	Direct
Sept. 14, 2020	OM	Performance Stock Option (Right to Buy)→ Common Stock (62,025)	62,025	Direct
Sept. 14, 2020	OM	Performance Stock Option (Right to Buy)→ Common Stock (98,174)	98,174	Direct
Sept. 14, 2020	OM	Stock Option (Right to Buy)→ Common Stock (147,261)	147,261	Direct

Compensation (DEF 14A)

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

VCYT

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2023	$510,000	—	$1,234,624	$642,467	$388,493	—	$3,000	$2,778,584
2022	$463,500	—	$1,406,185	$1,144,161	$305,910	—	$3,000	$3,322,756
2021	$204,807	$100,000	$1,741,684	$1,237,510	$95,036	—	$3,000	$3,382,037

OM

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2021	$241,960	—	$679,986	$699,758	—	—	$149	$1,621,853
2020	$375,673	—	—	$1,743,855	$197,157	—	$107,989	$2,424,674

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.