Mark A Schlossberg

CIK 1520533 · View on SEC EDGAR ↗

Insider

First SEC filing: March 15, 2022 · Latest: March 15, 2022

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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

CYTK selling March 15, 2022

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 28 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

28 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
March 15, 2022	CYTK	M	25,196	—	—	25,197 Direct	-50.00%	Disposed	(price as of 2026-08-21)
March 15, 2022	CYTK	M	4,803	—	—	4,804 Direct	-49.99%	Disposed	(price as of 2026-08-21)
March 15, 2022	CYTK	M	30,818	—	—	13,938 Direct	-68.86%	Disposed	(price as of 2026-08-21)
March 15, 2022	CYTK	S	25,196	$33.96	$855,656	103,408 Direct	-19.59%	Disposed	128.1% (price as of 2026-08-21)
March 15, 2022	CYTK	M	25,196	$14.40	$362,822	128,604 Direct	+24.37%	Acquired	438.0% (price as of 2026-08-21)
March 15, 2022	CYTK	M	4,803	$14.40	$69,163	103,408 Direct	+4.87%	Acquired	438.0% (price as of 2026-08-21)
March 15, 2022	CYTK	M	30,818	$7.03	$216,651	98,605 Direct	+45.46%	Acquired	1002.0% (price as of 2026-08-21)
March 7, 2022	CYTK	F	4,631	$36.83	$170,560	67,787 Direct	-6.39%	Disposed	110.3% (price as of 2026-08-21)
March 2, 2022	CYTK	A	41,138	$37.63	$1,548,023	41,138 Direct	—	Acquired	105.9% (price as of 2026-08-21)
March 2, 2022	CYTK	A	3,862	$37.63	$145,327	3,862 Direct	—	Acquired	105.9% (price as of 2026-08-21)
March 2, 2022	CYTK	A	20,000	—	—	72,418 Direct	+38.15%	Acquired	(price as of 2026-08-21)
March 2, 2022	CYTK	F	3,457	$37.63	$130,087	52,418 Direct	-6.19%	Disposed	105.9% (price as of 2026-08-21)
Feb. 16, 2022	CYTK	A	3,125	—	—	55,875 Direct	+5.92%	Acquired	(price as of 2026-08-21)
Feb. 16, 2022	CYTK	A	1,900	—	—	52,750 Direct	+3.74%	Acquired	(price as of 2026-08-21)
Oct. 19, 2021	CYTK	M 10b5-1	19,979	—	—	15,265 Direct	-56.69%	Disposed	(price as of 2026-08-21)
Oct. 19, 2021	CYTK	S 10b5-1	19,979	$35.74	$714,049	50,850 Direct	-28.21%	Disposed	116.8% (price as of 2026-08-21)
Oct. 19, 2021	CYTK	M 10b5-1	19,979	$7.03	$140,452	70,829 Direct	+39.29%	Acquired	1002.0% (price as of 2026-08-21)
March 8, 2021	CYTK	F	4,150	$19.19	$79,638	50,850 Direct	-7.55%	Disposed	303.7% (price as of 2026-08-21)
March 2, 2021	CYTK	A	34,871	$19.42	$677,195	34,871 Direct	—	Acquired	298.9% (price as of 2026-08-21)
March 2, 2021	CYTK	A	10,129	$19.42	$196,705	10,129 Direct	—	Acquired	298.9% (price as of 2026-08-21)
March 2, 2021	CYTK	A	25,000	—	—	55,000 Direct	+83.33%	Acquired	(price as of 2026-08-21)
Aug. 21, 2020	CYTK	M 10b5-1	10,000	—	—	35,244 Direct	-22.10%	Disposed	(price as of 2026-08-21)
Aug. 21, 2020	CYTK	S 10b5-1	10,000	$25.00	$250,000	30,000 Direct	-25.00%	Disposed	209.9% (price as of 2026-08-21)
Aug. 21, 2020	CYTK	M 10b5-1	10,000	$7.03	$70,300	40,000 Direct	+33.33%	Acquired	1002.0% (price as of 2026-08-21)
July 29, 2020	CYTK	M 10b5-1	10,000	—	—	45,244 Direct	-18.10%	Disposed	(price as of 2026-08-21)
July 29, 2020	CYTK	S 10b5-1	10,000	$23.07	$230,700	30,000 Direct	-25.00%	Disposed	235.8% (price as of 2026-08-21)
July 29, 2020	CYTK	M 10b5-1	10,000	$7.03	$70,300	40,000 Direct	+33.33%	Acquired	1002.0% (price as of 2026-08-21)
March 6, 2020	CYTK	A	50,393	$14.40	$725,659	50,393 Direct	—	Acquired	438.0% (price as of 2026-08-21)
March 6, 2020	CYTK	A	9,607	$14.40	$138,341	9,607 Direct	—	Acquired	438.0% (price as of 2026-08-21)
March 6, 2020	CYTK	A	30,000	—	—	30,000 Direct	—	Acquired	(price as of 2026-08-21)
Jan. 31, 2019	CYTK	A	55,244	$7.03	$388,365	55,244 Direct	—	Acquired	1002.0% (price as of 2026-08-21)
Jan. 31, 2019	CYTK	A	44,756	$7.03	$314,635	44,756 Direct	—	Acquired	1002.0% (price as of 2026-08-21)

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 15, 2022	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (25,196)	$14.40	March 5, 2030	25,196	Disposed
March 15, 2022	CYTK	Incentive Stock Option (right to buy)	Common Stock (4,803)	$14.40	March 5, 2030	4,803	Disposed
March 15, 2022	CYTK	Incentive Stock Option (right to buy)	Common Stock (30,818)	$7.03	Jan. 31, 2029	30,818	Disposed
March 2, 2022	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (41,138)	$37.63	March 1, 2032	41,138	Acquired
March 2, 2022	CYTK	Incentive Stock Option (right to buy)	Common Stock (3,862)	$37.63	March 1, 2032	3,862	Acquired
Oct. 19, 2021	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (19,979)	$7.03	Jan. 31, 2029	19,979	Disposed
March 2, 2021	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (34,871)	$19.42	March 1, 2031	34,871	Acquired
March 2, 2021	CYTK	Incentive Stock Option (right to buy)	Common Stock (10,129)	$19.42	March 1, 2031	10,129	Acquired
Aug. 21, 2020	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (10,000)	$7.03	Jan. 31, 2029	10,000	Disposed
July 29, 2020	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (10,000)	$7.03	Jan. 31, 2029	10,000	Disposed
March 6, 2020	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (50,393)	$14.40	March 5, 2030	50,393	Acquired
March 6, 2020	CYTK	Incentive Stock Option (right to buy)	Common Stock (9,607)	$14.40	March 5, 2030	9,607	Acquired
Jan. 31, 2019	CYTK	Non-Qualified Stock Option (right to buy)	Common Stock (55,244)	$7.03	Jan. 31, 2029	55,244	Acquired
Jan. 31, 2019	CYTK	Incentive Stock Option (right to buy)	Common Stock (44,756)	$7.03	Jan. 31, 2029	44,756	Acquired

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