William A Hagstrom

Insider

First SEC filing: Dec. 5, 2019 · Latest: Dec. 5, 2019

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.

Insider at

CDNA selling June 11, 2025

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 54 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

54 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 11, 2025	CDNA	M	4,391	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
June 11, 2025	CDNA	M	15,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
June 11, 2025	CDNA	S	19,391	$19.90	$385,881	53,979 Direct	-26.43%	Disposed	137.4% (price as of 2026-08-20)
June 11, 2025	CDNA	M	4,391	$7.96	$34,952	73,370 Direct	+6.37%	Acquired	493.6% (price as of 2026-08-20)
June 11, 2025	CDNA	M	15,000	$14.74	$221,100	68,979 Direct	+27.79%	Acquired	220.6% (price as of 2026-08-20)
May 28, 2025	CDNA	M	510	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 28, 2025	CDNA	M	24,745	—	—	4,391 Direct	-84.93%	Disposed	(price as of 2026-08-20)
May 28, 2025	CDNA	M	4,745	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 28, 2025	CDNA	S	30,000	$17.45	$523,500	53,979 Direct	-35.72%	Disposed	170.8% (price as of 2026-08-20)
May 28, 2025	CDNA	M	510	$5.85	$2,984	83,979 Direct	+0.61%	Acquired	707.7% (price as of 2026-08-20)
May 28, 2025	CDNA	M	24,745	$7.96	$196,970	83,469 Direct	+42.14%	Acquired	493.6% (price as of 2026-08-20)
May 28, 2025	CDNA	M	4,745	$4.95	$23,488	58,724 Direct	+8.79%	Acquired	854.5% (price as of 2026-08-20)
June 14, 2024	CDNA	A	16,048	—	—	16,048 Direct	—	Acquired	(price as of 2026-08-20)
June 14, 2024	CDNA	A	16,048	—	—	16,048 Direct	—	Acquired	(price as of 2026-08-20)
June 14, 2024	CDNA	A	10,570	—	—	53,979 Direct	+24.35%	Acquired	(price as of 2026-08-20)
June 16, 2023	CDNA	A	29,136	—	—	29,136 Direct	—	Acquired	(price as of 2026-08-20)
June 16, 2023	CDNA	A	18,844	—	—	43,409 Direct	+76.71%	Acquired	(price as of 2026-08-20)
June 16, 2022	CDNA	A	7,606	—	—	7,606 Direct	—	Acquired	(price as of 2026-08-20)
June 16, 2022	CDNA	A	4,863	—	—	24,565 Direct	+24.68%	Acquired	(price as of 2026-08-20)
June 16, 2021	CDNA	A	1,812	—	—	1,812 Direct	—	Acquired	(price as of 2026-08-20)
June 16, 2021	CDNA	A	1,127	—	—	19,702 Direct	+6.07%	Acquired	(price as of 2026-08-20)
June 9, 2021	CDNA	M	5,000	$4.95	$24,750	23,575 Direct	+26.92%	Acquired	854.5% (price as of 2026-08-20)
June 9, 2021	CDNA	S	5,000	$88.14	$440,700	18,575 Direct	-21.21%	Disposed	-46.4% (price as of 2026-08-20)
June 9, 2021	CDNA	M	5,000	—	—	4,745 Direct	-51.31%	Disposed	(price as of 2026-08-20)
May 14, 2021	CDNA	M	5,255	$5.02	$26,380	0 Direct	-100.00%	Disposed	841.2% (price as of 2026-08-20)
May 14, 2021	CDNA	M	4,745	$5.85	$27,758	510 Direct	-90.29%	Disposed	707.7% (price as of 2026-08-20)
May 14, 2021	CDNA	S	1,412	$67.29	$95,013	18,575 Direct	-7.06%	Disposed	-29.8% (price as of 2026-08-20)
May 14, 2021	CDNA	S	8,588	$66.82	$573,850	19,987 Direct	-30.05%	Disposed	-29.3% (price as of 2026-08-20)
May 14, 2021	CDNA	M	5,255	$5.02	$26,380	28,575 Direct	+22.53%	Acquired	841.2% (price as of 2026-08-20)
May 14, 2021	CDNA	M	4,745	$5.85	$27,758	23,320 Direct	+25.55%	Acquired	707.7% (price as of 2026-08-20)
June 18, 2020	CDNA	A	4,978	$31.35	$156,060	4,978 Direct	—	Acquired	50.7% (price as of 2026-08-20)
June 18, 2020	CDNA	A	3,190	—	—	18,575 Direct	+20.73%	Acquired	(price as of 2026-08-20)
May 6, 2020	CDNA	M	15,000	$1.22	$18,300	0 Direct	-100.00%	Disposed	3773.0% (price as of 2026-08-20)
May 6, 2020	CDNA	S	15,000	$29.12	$436,800	15,385 Direct	-49.37%	Disposed	62.3% (price as of 2026-08-20)
May 6, 2020	CDNA	M	15,000	$1.22	$18,300	30,385 Direct	+97.50%	Acquired	3773.0% (price as of 2026-08-20)
Dec. 3, 2019	CDNA	S	12,500	$20.06	$250,750	15,385 Direct	-44.83%	Disposed	135.5% (price as of 2026-08-20)
June 17, 2019	CDNA	A	4,152	$38.26	$158,856	4,152 Direct	—	Acquired	23.5% (price as of 2026-08-20)
June 17, 2019	CDNA	A	2,613	—	—	27,885 Direct	+10.34%	Acquired	(price as of 2026-08-20)
June 4, 2019	CDNA	S	15,000	$32.35	$485,250	25,272 Direct	-37.25%	Disposed	46.1% (price as of 2026-08-20)
June 29, 2018	CDNA	A	740	—	—	40,272 Direct	+1.87%	Acquired	(price as of 2026-08-20)
June 20, 2018	CDNA	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-20)
June 20, 2018	CDNA	A	5,000	—	—	39,532 Direct	+14.48%	Acquired	(price as of 2026-08-20)
April 2, 2018	CDNA	A	1,373	—	—	34,532 Direct	+4.14%	Acquired	(price as of 2026-08-20)
Jan. 2, 2018	CDNA	A	1,844	—	—	33,159 Direct	+5.89%	Acquired	(price as of 2026-08-20)
Oct. 2, 2017	CDNA	A	5,475	—	—	31,315 Direct	+21.19%	Acquired	(price as of 2026-08-20)
July 13, 2017	CDNA	A	15,000	$1.22	$18,300	15,000 Direct	—	Acquired	3773.0% (price as of 2026-08-20)
July 13, 2017	CDNA	A	5,000	—	—	25,840 Direct	+23.99%	Acquired	(price as of 2026-08-20)
April 1, 2017	CDNA	A	3,439	—	—	20,840 Direct	+19.76%	Acquired	(price as of 2026-08-20)
Jan. 1, 2017	CDNA	A	2,213	—	—	17,401 Direct	+14.57%	Acquired	(price as of 2026-08-20)
Oct. 1, 2016	CDNA	A	1,670	—	—	15,188 Direct	+12.35%	Acquired	(price as of 2026-08-20)
July 15, 2016	CDNA	A	9,745	$4.95	$48,238	9,745 Direct	—	Acquired	854.5% (price as of 2026-08-20)
July 15, 2016	CDNA	A	5,000	—	—	13,518 Direct	+58.70%	Acquired	(price as of 2026-08-20)
July 1, 2016	CDNA	A	2,156	—	—	8,518 Direct	+33.89%	Acquired	(price as of 2026-08-20)
June 16, 2016	CDNA	A	5,255	$5.02	$26,380	5,255 Direct	—	Acquired	841.2% (price as of 2026-08-20)
April 1, 2016	CDNA	A	1,954	—	—	6,362 Direct	+44.33%	Acquired	(price as of 2026-08-20)
Jan. 1, 2016	CDNA	A	1,836	—	—	4,408 Direct	+71.38%	Acquired	(price as of 2026-08-20)
Oct. 1, 2015	CDNA	A	1,008	—	—	2,572 Direct	+64.45%	Acquired	(price as of 2026-08-20)
July 1, 2015	CDNA	A	1,227	—	—	1,564 Direct	+364.09%	Acquired	(price as of 2026-08-20)
June 17, 2015	CDNA	A	5,255	—	—	5,255 Direct	-50.00%	Disposed	(price as of 2026-08-20)
June 16, 2015	CDNA	A	5,255	$6.08	$31,950	5,255 Direct	—	Acquired	677.1% (price as of 2026-08-20)
April 1, 2015	CDNA	A	337	—	—	337 Direct	—	Acquired	(price as of 2026-08-20)
March 2, 2015	CDNA	A	10,948	—	—	10,948 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
June 11, 2025	CDNA	Stock Option (right to buy)	Common Stock (4,391)	$7.96	June 16, 2033	4,391	Disposed
June 11, 2025	CDNA	Stock Option (right to buy)	Common Stock (15,000)	$14.74	June 20, 2028	15,000	Disposed
May 28, 2025	CDNA	Stock Option (right to buy)	Common Stock (510)	$5.85	June 17, 2025	510	Disposed
May 28, 2025	CDNA	Stock Option (right to buy)	Common Stock (24,745)	$7.96	June 16, 2033	24,745	Disposed
May 28, 2025	CDNA	Stock Option (right to buy)	Common Stock (4,745)	$4.95	July 15, 2026	4,745	Disposed
June 14, 2024	CDNA	Stock Option (right to buy)	Common Stock (16,048)	—	June 14, 2034	16,048	Acquired
June 14, 2024	CDNA	Stock Option (right to buy)	Common Stock (16,048)	$9.35	June 14, 2034	16,048	Acquired
June 16, 2023	CDNA	Common Stock	Common Stock (29,136)	$7.96	June 16, 2033	29,136	Acquired
June 16, 2022	CDNA	Common Stock	Common Stock (7,606)	$20.56	June 16, 2032	7,606	Acquired
June 16, 2021	CDNA	Stock Option (right to buy)	Common Stock (1,812)	$88.70	June 16, 2031	1,812	Acquired
June 9, 2021	CDNA	Common Stock	Common Stock (5,000)	$4.95	July 15, 2026	5,000	Disposed
May 14, 2021	CDNA	Stock Option (right to buy)	Common Stock (5,255)	$5.02	June 16, 2026	5,255	Disposed
May 14, 2021	CDNA	Stock Option (right to buy)	Common Stock (4,745)	$5.85	June 17, 2025	4,745	Disposed
June 18, 2020	CDNA	Stock Option (right to buy)	Common Stock (4,978)	$31.35	June 18, 2030	4,978	Acquired
May 6, 2020	CDNA	Stock Option (right to buy)	Common Stock (15,000)	$1.22	July 13, 2027	15,000	Disposed
June 17, 2019	CDNA	Stock Option (right to buy)	Common Stock (4,152)	$38.26	June 17, 2029	4,152	Acquired
June 20, 2018	CDNA	Stock Option (right to buy)	Common Stock (15,000)	$14.74	June 20, 2028	15,000	Acquired
July 13, 2017	CDNA	Stock Option (right to buy)	Common Stock (15,000)	$1.22	July 13, 2027	15,000	Acquired
July 15, 2016	CDNA	Stock Option (right to buy)	Common Stock (9,745)	$4.95	July 15, 2026	9,745	Acquired
June 16, 2016	CDNA	Stock Option (right to buy)	Common Stock (5,255)	$5.02	June 16, 2026	5,255	Acquired
June 17, 2015	CDNA	Stock Option (right to buy)	Common Stock (5,255)	—	June 17, 2025	5,255	Disposed
June 16, 2015	CDNA	Stock Option (right to buy)	Common Stock (5,255)	$6.08	June 16, 2025	5,255	Acquired
March 2, 2015	CDNA	Option to Purchase Common Stock	Common Stock (10,948)	$6.50	March 2, 2025	10,948	Acquired

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