John T Henderson

Insider

First SEC filing: Feb. 27, 2009 · Latest: Feb. 27, 2009

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.

Insider at

Insider transactions

0 buys (P) 2 sells (S) Net: $-2,078,525 + 81 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

81 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
July 15, 2026	CYTK	A	272	$82.62	$22,473	78,360 Direct	+0.35%	Acquired	-7.3% (price as of 2026-08-20)
May 27, 2026	CYTK	A	4,301	—	—	4,301 Direct	—	Acquired	(price as of 2026-08-20)
May 27, 2026	CYTK	A	2,851	—	—	78,088 Direct	+3.79%	Acquired	(price as of 2026-08-20)
May 5, 2026	CYTK	M	20,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 5, 2026	CYTK	S	20,000	$75.97	$1,519,400	75,237 Direct	-21.00%	Disposed	0.8% (price as of 2026-08-20)
May 5, 2026	CYTK	M	20,000	$7.61	$152,200	95,237 Direct	+26.58%	Acquired	905.9% (price as of 2026-08-20)
April 15, 2026	CYTK	A	325	$65.37	$21,245	75,237 Direct	+0.43%	Acquired	17.1% (price as of 2026-08-20)
Jan. 15, 2026	CYTK	A	334	$63.44	$21,189	74,912 Direct	+0.45%	Acquired	20.7% (price as of 2026-08-20)
Dec. 2, 2025	CYTK	M	8,750	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Dec. 2, 2025	CYTK	S	8,750	$63.90	$559,125	74,578 Direct	-10.50%	Disposed	19.8% (price as of 2026-08-20)
Dec. 2, 2025	CYTK	M	8,750	$10.00	$87,500	83,328 Direct	+11.73%	Acquired	665.5% (price as of 2026-08-20)
Oct. 15, 2025	CYTK	A	338	$62.80	$21,226	74,578 Direct	+0.46%	Acquired	21.9% (price as of 2026-08-20)
July 15, 2025	CYTK	A	559	$38.01	$21,248	74,240 Direct	+0.76%	Acquired	101.4% (price as of 2026-08-20)
May 14, 2025	CYTK	A	7,333	—	—	73,681 Direct	+11.05%	Acquired	(price as of 2026-08-20)
May 14, 2025	CYTK	A	10,880	—	—	10,880 Direct	—	Acquired	(price as of 2026-08-20)
April 15, 2025	CYTK	M	20,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
April 15, 2025	CYTK	S	3,190	$38.66	$123,325	66,348 Direct	-4.59%	Disposed	98.0% (price as of 2026-08-20)
April 15, 2025	CYTK	M	20,000	$6.21	$124,200	69,538 Direct	+40.37%	Acquired	1132.7% (price as of 2026-08-20)
April 15, 2025	CYTK	A	551	$38.56	$21,247	66,348 Direct	+0.84%	Acquired	98.5% (price as of 2026-08-20)
Jan. 2, 2025	CYTK	A	434	$48.93	$21,236	48,987 Direct	+0.89%	Acquired	56.5% (price as of 2026-08-20)
Dec. 11, 2024	CYTK	M	10,092	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Dec. 11, 2024	CYTK	M	1,780	—	—	10,092 Direct	-14.99%	Disposed	(price as of 2026-08-20)
Dec. 11, 2024	CYTK	M	10,092	$7.37	$74,378	48,553 Direct	+26.24%	Acquired	938.7% (price as of 2026-08-20)
Dec. 11, 2024	CYTK	S	1,780	$50.42	$89,748	38,461 Direct	-4.42%	Disposed	51.8% (price as of 2026-08-20)
Dec. 11, 2024	CYTK	M	1,780	$7.37	$13,119	40,241 Direct	+4.63%	Acquired	938.7% (price as of 2026-08-20)
Oct. 1, 2024	CYTK	A	403	$52.60	$21,198	38,461 Direct	+1.06%	Acquired	45.5% (price as of 2026-08-20)
July 1, 2024	CYTK	A	388	—	—	38,058 Direct	+1.03%	Acquired	(price as of 2026-08-20)
May 15, 2024	CYTK	A	3,636	—	—	3,636 Direct	—	Acquired	(price as of 2026-08-20)
May 15, 2024	CYTK	A	5,600	—	—	37,670 Direct	+17.46%	Acquired	(price as of 2026-08-20)
April 25, 2024	CYTK	S 10b5-1	10,562	$64.54	$681,671	32,070 Direct	-24.77%	Disposed	18.6% (price as of 2026-08-20)
Feb. 14, 2024	CYTK	M 10b5-1	5,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 14, 2024	CYTK	S 10b5-1	5,000	$76.48	$382,400	42,632 Direct	-10.50%	Disposed	0.1% (price as of 2026-08-20)
Feb. 14, 2024	CYTK	M 10b5-1	5,000	$4.44	$22,200	47,632 Direct	+11.73%	Acquired	1624.2% (price as of 2026-08-20)
Jan. 12, 2024	CYTK	M 10b5-1	5,000	—	—	5,000 Direct	-50.00%	Disposed	(price as of 2026-08-20)
Jan. 12, 2024	CYTK	S 10b5-1	5,000	$85.14	$425,700	42,632 Direct	-10.50%	Disposed	-10.1% (price as of 2026-08-20)
Jan. 12, 2024	CYTK	M 10b5-1	5,000	$4.44	$22,200	47,632 Direct	+11.73%	Acquired	1624.2% (price as of 2026-08-20)
Jan. 2, 2024	CYTK	A	252	$84.12	$21,198	42,632 Direct	+0.59%	Acquired	-9.0% (price as of 2026-08-20)
Dec. 18, 2023	CYTK	M	13,020	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Dec. 18, 2023	CYTK	S	2,458	$36.34	$89,324	42,380 Direct	-5.48%	Disposed	110.7% (price as of 2026-08-20)
Dec. 18, 2023	CYTK	M	13,020	$6.72	$87,494	44,838 Direct	+40.92%	Acquired	1039.2% (price as of 2026-08-20)
Oct. 2, 2023	CYTK	A	762	$27.88	$21,245	31,818 Direct	+2.45%	Acquired	174.6% (price as of 2026-08-20)
July 3, 2023	CYTK	A	636	$33.36	$21,217	31,056 Direct	+2.09%	Acquired	129.5% (price as of 2026-08-20)
May 15, 2023	CYTK	M 10b5-1	4,166	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 15, 2023	CYTK	S 10b5-1	4,166	$37.77	$157,350	25,420 Direct	-14.08%	Disposed	102.7% (price as of 2026-08-20)
May 15, 2023	CYTK	M 10b5-1	4,166	$6.78	$28,245	29,586 Direct	+16.39%	Acquired	1029.1% (price as of 2026-08-20)
May 10, 2023	CYTK	A	10,000	—	—	10,000 Direct	—	Acquired	(price as of 2026-08-20)
May 10, 2023	CYTK	A	5,000	—	—	30,420 Direct	+19.67%	Acquired	(price as of 2026-08-20)
April 3, 2023	CYTK	A	530	$37.71	$19,986	25,420 Direct	+2.13%	Acquired	103.0% (price as of 2026-08-20)
Jan. 3, 2023	CYTK	A	450	$44.35	$19,958	24,890 Direct	+1.84%	Acquired	72.6% (price as of 2026-08-20)
Oct. 3, 2022	CYTK	A	391	$51.11	$19,984	24,440 Direct	+1.63%	Acquired	49.8% (price as of 2026-08-20)
Sept. 12, 2022	CYTK	M 10b5-1	7,259	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Sept. 12, 2022	CYTK	M 10b5-1	7,250	—	—	7,259 Direct	-49.97%	Disposed	(price as of 2026-08-20)
Sept. 12, 2022	CYTK	M 10b5-1	7,250	—	—	14,509 Direct	-33.32%	Disposed	(price as of 2026-08-20)
Sept. 12, 2022	CYTK	S 10b5-1	7,259	$54.94	$398,809	24,049 Direct	-23.19%	Disposed	39.3% (price as of 2026-08-20)
Sept. 12, 2022	CYTK	M 10b5-1	7,259	$4.02	$29,181	31,308 Direct	+30.18%	Acquired	1804.3% (price as of 2026-08-20)
Sept. 12, 2022	CYTK	S 10b5-1	7,250	$54.95	$398,388	24,049 Direct	-23.16%	Disposed	39.3% (price as of 2026-08-20)
Sept. 12, 2022	CYTK	M 10b5-1	7,250	$4.02	$29,145	31,299 Direct	+30.15%	Acquired	1804.3% (price as of 2026-08-20)
Sept. 12, 2022	CYTK	S 10b5-1	7,250	$54.94	$398,315	24,049 Direct	-23.16%	Disposed	39.3% (price as of 2026-08-20)
Sept. 12, 2022	CYTK	M 10b5-1	7,250	$4.02	$29,145	31,299 Direct	+30.15%	Acquired	1804.3% (price as of 2026-08-20)
July 1, 2022	CYTK	A	487	$41.00	$19,967	24,049 Direct	+2.07%	Acquired	86.7% (price as of 2026-08-20)
May 10, 2022	CYTK	A	10,000	—	—	10,000 Direct	—	Acquired	(price as of 2026-08-20)
May 10, 2022	CYTK	A	5,000	—	—	23,562 Direct	+26.94%	Acquired	(price as of 2026-08-20)
April 1, 2022	CYTK	A	488	$38.38	$18,729	18,562 Direct	+2.70%	Acquired	99.5% (price as of 2026-08-20)
March 1, 2022	CYTK	M	4,166	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 1, 2022	CYTK	M	4,166	$5.46	$22,746	18,074 Direct	+29.95%	Acquired	1302.1% (price as of 2026-08-20)
Jan. 3, 2022	CYTK	A	244	$46.00	$11,224	13,499 Direct	+1.84%	Acquired	66.4% (price as of 2026-08-20)
Nov. 5, 2021	CYTK	M 10b5-1	8,503	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 5, 2021	CYTK	S 10b5-1	8,503	$40.00	$340,120	13,255 Direct	-39.08%	Disposed	91.4% (price as of 2026-08-20)
Nov. 5, 2021	CYTK	M 10b5-1	8,503	$5.88	$49,998	21,758 Direct	+64.15%	Acquired	1201.9% (price as of 2026-08-20)
Oct. 1, 2021	CYTK	A	306	$36.74	$11,242	13,255 Direct	+2.36%	Acquired	108.4% (price as of 2026-08-20)
July 7, 2021	CYTK	A	63	$19.77	$1,246	12,949 Direct	+0.49%	Acquired	287.2% (price as of 2026-08-20)
July 1, 2021	CYTK	A	476	$20.98	$9,986	12,886 Direct	+3.84%	Acquired	264.9% (price as of 2026-08-20)
May 12, 2021	CYTK	A	10,000	—	—	10,000 Direct	—	Acquired	(price as of 2026-08-20)
May 12, 2021	CYTK	A	5,000	—	—	12,410 Direct	+67.48%	Acquired	(price as of 2026-08-20)
April 1, 2021	CYTK	A	409	$24.44	$9,996	7,819 Direct	+5.52%	Acquired	213.2% (price as of 2026-08-20)
April 1, 2021	CYTK	M 10b5-1	1,100	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
April 1, 2021	CYTK	M 10b5-1	1,100	—	—	1,100 Direct	-50.00%	Disposed	(price as of 2026-08-20)
April 1, 2021	CYTK	M 10b5-1	1,133	—	—	2,200 Direct	-33.99%	Disposed	(price as of 2026-08-20)
April 1, 2021	CYTK	S 10b5-1	1,100	$23.31	$25,641	7,410 Direct	-12.93%	Disposed	228.4% (price as of 2026-08-20)
April 1, 2021	CYTK	M 10b5-1	1,100	$8.64	$9,504	8,510 Direct	+14.84%	Acquired	786.0% (price as of 2026-08-20)
April 1, 2021	CYTK	S 10b5-1	1,100	$23.31	$25,641	7,410 Direct	-12.93%	Disposed	228.4% (price as of 2026-08-20)
April 1, 2021	CYTK	M 10b5-1	1,100	$8.64	$9,504	8,510 Direct	+14.84%	Acquired	786.0% (price as of 2026-08-20)
April 1, 2021	CYTK	S 10b5-1	1,133	$24.00	$27,192	7,410 Direct	-13.26%	Disposed	219.0% (price as of 2026-08-20)
April 1, 2021	CYTK	M 10b5-1	1,133	$8.64	$9,789	8,543 Direct	+15.29%	Acquired	786.0% (price as of 2026-08-20)
Jan. 4, 2021	CYTK	A	511	$19.56	$9,995	1,410 Direct	+56.84%	Acquired	291.4% (price as of 2026-08-20)
Dec. 31, 2020	CYTK	M 10b5-1	858	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Dec. 31, 2020	CYTK	S 10b5-1	858	$20.31	$17,426	899 Direct	-48.83%	Disposed	276.9% (price as of 2026-08-20)
Dec. 31, 2020	CYTK	M 10b5-1	858	$12.96	$11,120	1,757 Direct	+95.44%	Acquired	490.7% (price as of 2026-08-20)
Oct. 5, 2020	CYTK	M 10b5-1	1,500	—	—	858 Direct	-63.61%	Disposed	(price as of 2026-08-20)
Oct. 5, 2020	CYTK	M 10b5-1	1,500	—	—	2,358 Direct	-38.88%	Disposed	(price as of 2026-08-20)
Oct. 5, 2020	CYTK	S 10b5-1	1,500	$28.00	$42,000	899 Direct	-62.53%	Disposed	173.4% (price as of 2026-08-20)
Oct. 5, 2020	CYTK	M 10b5-1	1,500	$12.96	$19,440	2,399 Direct	+166.85%	Acquired	490.7% (price as of 2026-08-20)
Oct. 5, 2020	CYTK	S 10b5-1	1,500	$30.00	$45,000	899 Direct	-62.53%	Disposed	155.2% (price as of 2026-08-20)
Oct. 5, 2020	CYTK	M 10b5-1	1,500	$12.96	$19,440	2,399 Direct	+166.85%	Acquired	490.7% (price as of 2026-08-20)
May 19, 2020	CYTK	F	2,684	$20.93	$56,176	6,899 Direct	-28.01%	Disposed	265.8% (price as of 2026-08-20)
May 19, 2020	CYTK	M	3,333	$16.86	$56,194	9,583 Direct	+53.33%	Acquired	354.0% (price as of 2026-08-20)
May 19, 2020	CYTK	M	3,333	$20.93	$69,760	0 Direct	-100.00%	Disposed	265.8% (price as of 2026-08-20)
May 19, 2020	CYTK	F	2,684	$20.93	$56,176	899 Direct	-74.91%	Disposed	265.8% (price as of 2026-08-20)
May 19, 2020	CYTK	M	3,333	$16.86	$56,194	3,583 Direct	+1333.20%	Acquired	354.0% (price as of 2026-08-20)
May 13, 2020	CYTK	A	20,000	$21.61	$432,200	20,000 Direct	—	Acquired	254.2% (price as of 2026-08-20)

Showing latest 100 of 197 transactions

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
May 27, 2026	CYTK	Non-Qualified Stock Option (Right to Buy)	Common Stock (4,301)	$77.15	May 26, 2036	4,301	Acquired
May 5, 2026	CYTK	Non-Qualified Stock Option (Right to Buy)	Common Stock (20,000)	$7.61	May 18, 2026	20,000	Disposed
Dec. 2, 2025	CYTK	Non-Qualified Stock Option (Right to Buy)	Common Stock (8,750)	$10.00	Jan. 4, 2026	8,750	Disposed
May 14, 2025	CYTK	Non-Qualified Stock Option (Right to Buy)	Common Stock (10,880)	$30.00	May 13, 2035	10,880	Acquired
April 15, 2025	CYTK	Stock Option (Right to Buy)	Common Stock (20,000)	$6.21	May 20, 2025	20,000	Disposed
Dec. 11, 2024	CYTK	Non-Qualified Stock Option (Right to Buy)	Common Stock (10,092)	$7.37	Jan. 2, 2025	10,092	Disposed
Dec. 11, 2024	CYTK	Non-Qualified Stock Option (Right to Buy)	Common Stock (1,780)	$7.37	Jan. 2, 2025	1,780	Disposed
May 15, 2024	CYTK	Non-Qualified Stock Option (Right to Buy)	Common Stock (3,636)	$60.50	May 15, 2034	3,636	Acquired
Feb. 14, 2024	CYTK	Non-Qualified Stock Option (Right to Buy)	Common Stock (5,000)	$4.44	May 21, 2024	5,000	Disposed
Jan. 12, 2024	CYTK	Non-Qualified Stock Option (Right to Buy)	Common Stock (5,000)	$4.44	May 21, 2024	5,000	Disposed
Dec. 18, 2023	CYTK	Non-Qualified Stock Option (Right to Buy)	Common Stock (13,020)	$6.72	Jan. 2, 2024	13,020	Disposed
May 15, 2023	CYTK	Non-Qualified Stock Option (Right to Buy)	Common Stock (4,166)	$6.78	May 22, 2023	4,166	Disposed
May 10, 2023	CYTK	Non-Qualified Stock Option (Right to Buy)	Common Stock (10,000)	$37.89	May 10, 2033	10,000	Acquired
Sept. 12, 2022	CYTK	Non-Qualified Stock Option (Right to Buy)	Common Stock (7,259)	$4.02	Jan. 2, 2023	7,259	Disposed
Sept. 12, 2022	CYTK	Non-Qualified Stock Option (Right to Buy)	Common Stock (7,250)	$4.02	Jan. 2, 2023	7,250	Disposed
Sept. 12, 2022	CYTK	Non-Qualified Stock Option (Right to Buy)	Common Stock (7,250)	$4.02	Jan. 2, 2023	7,250	Disposed
May 10, 2022	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (10,000)	$37.89	May 10, 2032	10,000	Acquired
March 1, 2022	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (4,166)	$5.46	May 22, 2022	4,166	Disposed
Nov. 5, 2021	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (8,503)	$5.88	Jan. 3, 2022	8,503	Disposed
May 12, 2021	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (10,000)	$24.32	May 12, 2031	10,000	Acquired
April 1, 2021	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (1,100)	$8.64	May 18, 2021	1,100	Disposed
April 1, 2021	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (1,100)	$8.64	May 18, 2021	1,100	Disposed
April 1, 2021	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (1,133)	$8.64	May 18, 2021	1,133	Disposed
Dec. 31, 2020	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (858)	$12.96	Jan. 3, 2021	858	Disposed
Oct. 5, 2020	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (1,500)	$12.96	Jan. 3, 2021	1,500	Disposed
Oct. 5, 2020	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (1,500)	$12.96	Jan. 3, 2021	1,500	Disposed
May 19, 2020	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (3,333)	$16.86	May 20, 2020	3,333	Disposed
May 13, 2020	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (20,000)	$21.61	May 13, 2030	20,000	Acquired
Feb. 12, 2020	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (6,415)	$15.43	Feb. 12, 2030	6,415	Acquired
Jan. 2, 2020	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock	$10.55	Jan. 2, 2030	9,479	Acquired
Jan. 2, 2020	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (1,517)	$10.55	Jan. 2, 2030	1,517	Acquired
May 15, 2019	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (20,000)	$10.68	May 15, 2029	20,000	Acquired
May 15, 2019	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (20,000)	$10.68	May 15, 2029	20,000	Acquired
Jan. 2, 2019	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (8,247)	$6.82	Jan. 2, 2029	8,247	Acquired
July 11, 2018	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (10,000)	$24.39	Nov. 13, 2018	10,000	Disposed
July 11, 2018	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (10,000)	$24.39	Nov. 13, 2018	10,000	Disposed
July 11, 2018	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (10,000)	$24.39	Nov. 13, 2018	10,000	Disposed
May 16, 2018	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (20,000)	$9.45	May 16, 2028	20,000	Acquired
Jan. 2, 2018	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (11,428)	$8.75	Jan. 2, 2028	11,428	Acquired
Sept. 1, 2017	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (10,000)	$16.46	Nov. 15, 2017	10,000	Disposed
Sept. 1, 2017	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (10,000)	$16.46	Nov. 15, 2017	10,000	Disposed
Sept. 1, 2017	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (10,000)	$16.46	Nov. 15, 2017	10,000	Disposed
May 18, 2017	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (20,000)	$14.25	May 18, 2027	20,000	Acquired
Jan. 3, 2017	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (8,064)	$12.40	Jan. 3, 2027	8,064	Acquired
Sept. 12, 2016	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (2,007)	$10.60	Nov. 16, 2016	2,007	Disposed
Sept. 9, 2016	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (27,993)	$10.60	Nov. 16, 2016	27,993	Disposed
May 18, 2016	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (20,000)	$7.61	May 18, 2026	20,000	Acquired
Jan. 4, 2016	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (8,750)	$10.00	Jan. 4, 2026	8,750	Acquired
May 20, 2015	CYTK	Stock Option (right to buy)	Common Stock (20,000)	$6.21	May 20, 2025	20,000	Acquired
Jan. 2, 2015	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (11,872)	$7.37	Jan. 2, 2025	11,872	Acquired
June 5, 2014	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (5,000)	$7.60	Jan. 6, 2016	5,000	Disposed
May 21, 2014	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (10,000)	$4.44	May 21, 2024	10,000	Acquired
March 7, 2014	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (20,000)	$7.60	Jan. 6, 2016	20,000	Disposed
March 5, 2014	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (5,000)	$7.60	Jan. 6, 2016	5,000	Disposed
Jan. 2, 2014	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (13,020)	$6.72	Jan. 2, 2024	13,020	Acquired
Dec. 5, 2013	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (30,000)	$25.39	Dec. 5, 2021	30,000	Acquired
May 22, 2013	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (25,000)	$1.13	May 22, 2023	25,000	Acquired
Jan. 2, 2013	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (130,558)	$0.67	Jan. 2, 2023	130,558	Acquired
Dec. 10, 2012	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (10,000)	$6.09	May 1, 2014	10,000	Disposed
Dec. 10, 2012	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (11,254)	$6.90	Nov. 11, 2014	11,254	Disposed
Dec. 10, 2012	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (18,746)	$6.90	Nov. 11, 2014	18,746	Disposed
Dec. 5, 2012	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (30,000)	$27.61	Dec. 5, 2022	30,000	Acquired
May 22, 2012	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (25,000)	$0.91	May 22, 2022	25,000	Acquired
Jan. 3, 2012	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (51,020)	$0.98	Jan. 3, 2022	51,020	Acquired
Dec. 2, 2011	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (30,000)	$21.29	Dec. 2, 2021	30,000	Acquired
May 18, 2011	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (20,000)	$1.44	May 18, 2021	20,000	Acquired
Jan. 3, 2011	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (23,148)	$2.16	Jan. 3, 2021	23,148	Acquired
Dec. 3, 2010	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (30,000)	$21.66	Dec. 3, 2020	30,000	Acquired
May 20, 2010	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (20,000)	$2.81	May 20, 2020	20,000	Acquired
Jan. 4, 2010	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (16,077)	$3.11	Jan. 4, 2020	16,077	Acquired
Nov. 5, 2009	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (30,000)	$24.40	Nov. 5, 2019	30,000	Acquired
May 21, 2009	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (15,000)	$1.85	May 21, 2019	15,000	Acquired
April 1, 2009	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (21,428)	$1.75	April 1, 2019	21,428	Acquired
Feb. 19, 2009	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (30,000)	$1.95	Feb. 19, 2019	30,000	Acquired
Feb. 5, 2009	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (10,000)	$17.23	May 1, 2014	10,000	Disposed
Nov. 13, 2008	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (15,000)	$69.00	Nov. 13, 2018	15,000	Acquired
Nov. 15, 2007	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (15,000)	$46.55	Nov. 15, 2017	15,000	Acquired
Nov. 16, 2006	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (15,000)	$29.98	Nov. 16, 2016	15,000	Acquired
Jan. 6, 2006	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (15,000)	$21.49	Jan. 6, 2016	15,000	Acquired
Nov. 11, 2004	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (15,000)	$19.50	Nov. 11, 2014	15,000	Acquired
May 1, 2004	MYGN	Non-Qualified Stock Option (right to buy)	Common Stock (15,000)	$17.23	May 1, 2014	15,000	Acquired

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

Initial ownership (Form 3) 2 holdings

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

Date	Ticker	Security	Shares	Ownership
Feb. 27, 2009	CYTK	Common Stock	1,500	Direct
Feb. 27, 2009	CYTK	Common Stock	500	Indirect