Marc A Cohen

Insider

First SEC filing: Oct. 1, 2020 · Latest: Oct. 1, 2020

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) 0 sells (S) Net: $0 + 36 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

36 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 22, 2022	CCCC	A	23,500	—	—	23,500 Direct	—	Acquired	(price as of 2026-08-20)
June 21, 2022	KRRO	A	14,846	—	—	14,846 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 4, 2022	CCCC	A	657	$31.58	$20,748	1,118 Direct	+142.52%	Acquired	-87.3% (price as of 2026-08-20)
Oct. 4, 2021	CCCC	A	461	$44.99	$20,740	461 Direct	—	Acquired	-91.1% (price as of 2026-08-20)
July 2, 2021	CCCC	A	522	$39.72	$20,734	6,641 Direct	+8.53%	Acquired	-89.9% (price as of 2026-08-20)
June 17, 2021	KRRO	A	14,846	—	—	14,846 Direct	—	Acquired	(price as of 2026-08-20)
June 15, 2021	CCCC	A	23,500	—	—	23,500 Direct	—	Acquired	(price as of 2026-08-20)
June 14, 2021	CCCC	J	92,817	—	—	98,936 Direct	+1516.87%	Acquired	(price as of 2026-08-20)
June 14, 2021	CCCC	J	22,598	—	—	1,874,805 Indirect	+1.22%	Acquired	(price as of 2026-08-20)
April 5, 2021	CCCC	A	553	$37.51	$20,743	6,119 Direct	+9.94%	Acquired	-89.3% (price as of 2026-08-20)
Feb. 18, 2021	CCCC	M	536	—	—	3,209 Direct	-14.31%	Disposed	(price as of 2026-08-20)
Feb. 18, 2021	CCCC	M	536	$2.11	$1,131	5,566 Direct	+10.66%	Acquired	90.1% (price as of 2026-08-20)
Oct. 6, 2020	CCCC	C	1,482,183	—	—	1,852,207 Indirect	+400.56%	Acquired	(price as of 2026-08-20)
Oct. 6, 2020	CCCC	C	237,149	—	—	370,024 Indirect	+178.48%	Acquired	(price as of 2026-08-20)
Oct. 6, 2020	CCCC	C	20,952,403	—	—	0 Indirect	-100.00%	Disposed	(price as of 2026-08-20)
Oct. 6, 2020	CCCC	C	12,500,000	—	—	0 Indirect	-100.00%	Disposed	(price as of 2026-08-20)
Oct. 6, 2020	CCCC	C	2,000,000	—	—	0 Indirect	-100.00%	Disposed	(price as of 2026-08-20)
Oct. 6, 2020	CCCC	P	5,030	$19.00	$95,570	5,030 Direct	—	Acquired	-78.9% (price as of 2026-08-20)
Oct. 6, 2020	CCCC	C	2,484,425	—	—	2,484,425 Indirect	—	Acquired	(price as of 2026-08-20)
Oct. 1, 2020	CCCC	A	17,786	—	—	17,786 Direct	—	Acquired	(price as of 2026-08-20)
Oct. 1, 2020	CCCC	A	725,002	—	—	725,002 Direct	—	Acquired	(price as of 2026-08-20)
June 11, 2020	KRRO	A	14,846	—	—	14,846 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 30, 2020	KRRO	M	20,778	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Jan. 30, 2020	KRRO	M	20,778	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Jan. 30, 2020	KRRO	M	21,827	—	—	32,918 Direct	-39.87%	Disposed	(price as of 2026-08-20)
Jan. 30, 2020	KRRO	M	16,691	—	—	50,072 Direct	-25.00%	Disposed	(price as of 2026-08-20)
Jan. 30, 2020	KRRO	M	8,042	—	—	12,063 Direct	-40.00%	Disposed	(price as of 2026-08-20)
Jan. 30, 2020	KRRO	M	20,778	$3.37	$70,022	605,820 Indirect	+3.55%	Acquired	-92.0% (price as of 2026-08-20)
Jan. 30, 2020	KRRO	M	20,778	$3.37	$70,022	585,042 Indirect	+3.68%	Acquired	-92.0% (price as of 2026-08-20)
Jan. 30, 2020	KRRO	M	21,827	$3.37	$73,557	564,264 Indirect	+4.02%	Acquired	-92.0% (price as of 2026-08-20)
Jan. 30, 2020	KRRO	M	16,691	$0.61	$10,182	542,437 Indirect	+3.17%	Acquired	-55.7% (price as of 2026-08-20)
Jan. 30, 2020	KRRO	M	8,042	$0.61	$4,906	525,746 Indirect	+1.55%	Acquired	-55.7% (price as of 2026-08-20)
Dec. 3, 2019	KRRO	A	20,778	—	—	20,778 Direct	—	Acquired	(price as of 2026-08-20)
Oct. 7, 2019	KRRO	C	163,388	—	—	0 Indirect	-100.00%	Disposed	(price as of 2026-08-20)
Oct. 7, 2019	KRRO	C	543,219	—	—	0 Indirect	-100.00%	Disposed	(price as of 2026-08-20)
Oct. 7, 2019	KRRO	C	2,292,235	—	—	0 Indirect	-100.00%	Disposed	(price as of 2026-08-20)
Oct. 7, 2019	KRRO	P	17,857	$14.00	$249,998	17,857 Direct	—	Acquired	-98.1% (price as of 2026-08-20)
Oct. 7, 2019	KRRO	C	445,229	—	—	517,704 Indirect	+614.32%	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 22, 2022	CCCC	Stock Option (Right to Buy)	Common Stock (23,500)	$6.06	June 21, 2032	23,500	Acquired
June 21, 2022	KRRO	Stock Option	Common Stock (14,846)	$1.17	June 20, 2032	14,846	Acquired
June 17, 2021	KRRO	Stock Option	Common Stock (14,846)	$10.14	June 16, 2031	14,846	Acquired
June 15, 2021	CCCC	Stock Option (Right to Buy)	Common Stock (23,500)	$37.66	June 14, 2031	23,500	Acquired
Feb. 18, 2021	CCCC	Stock Option (Right to Buy)	Common Stock (536)	$2.11	July 12, 2026	536	Disposed
Oct. 6, 2020	CCCC	Series B Preferred Stock	Common Stock (2,484,425)	—	—	20,952,403	Disposed
Oct. 6, 2020	CCCC	Series A Preferred Stock	Common Stock (1,482,183)	—	—	12,500,000	Disposed
Oct. 6, 2020	CCCC	Series Seed Preferred Stock	Common Stock (237,149)	—	—	2,000,000	Disposed
Oct. 1, 2020	CCCC	Stock Option (Right to Buy)	Common Stock (17,786)	$19.00	Sept. 30, 2030	17,786	Acquired
Oct. 1, 2020	CCCC	Stock Option (Right to Buy)	Common Stock (725,002)	$19.00	Sept. 30, 2030	725,002	Acquired
June 11, 2020	KRRO	Stock Option	Common Stock (14,846)	$18.63	June 10, 2030	14,846	Acquired
Jan. 30, 2020	KRRO	Stock Option	Common Stock (20,778)	$3.37	April 16, 2029	20,778	Disposed
Jan. 30, 2020	KRRO	Stock Option	Common Stock (20,778)	$3.37	April 16, 2029	20,778	Disposed
Jan. 30, 2020	KRRO	Stock Option	Common Stock (21,827)	$3.37	April 16, 2029	21,827	Disposed
Jan. 30, 2020	KRRO	Stock Option	Common Stock (16,691)	$0.61	May 21, 2028	16,691	Disposed
Jan. 30, 2020	KRRO	Stock Option	Common Stock (8,042)	$0.61	June 28, 2027	8,042	Disposed
Dec. 3, 2019	KRRO	Stock Option	Common Stock (20,778)	$3.37	April 16, 2029	20,778	Acquired
Oct. 7, 2019	KRRO	Series C Preferred Stock	Common Stock (24,258)	—	—	163,388	Disposed
Oct. 7, 2019	KRRO	Series B Preferred Stock	Common Stock (80,650)	—	—	543,219	Disposed
Oct. 7, 2019	KRRO	Series A Preferred Stock	Common Stock (340,321)	—	—	2,292,235	Disposed

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

Initial ownership (Form 3) 13 holdings

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

Date	Ticker	Security	Shares	Ownership
Oct. 1, 2020	CCCC	Common Stock	132,875	Indirect
Oct. 1, 2020	CCCC	Series Seed Preferred Stock→ Common Stock (237,149)	237,149	Indirect
Oct. 1, 2020	CCCC	Series A Preferred Stock→ Common Stock (1,482,183)	1,482,183	Indirect
Oct. 1, 2020	CCCC	Series B Preferred Stock→ Common Stock (2,484,425)	2,484,425	Indirect
Oct. 1, 2020	CCCC	Stock Option (Right to Buy)→ Common Stock (3,745)	3,745	Direct
Oct. 2, 2019	KRRO	Common Stock	72,475	Indirect
Oct. 2, 2019	KRRO	Series A Preferred Stock→ Common Stock (340,321)	340,321	Indirect
Oct. 2, 2019	KRRO	Series B Preferred Stock→ Common Stock (80,650)	80,650	Indirect
Oct. 2, 2019	KRRO	Series C Preferred Stock→ Common Stock (24,258)	24,258	Indirect
Oct. 2, 2019	KRRO	Stock Option→ Common Stock (20,105)	20,105	Direct
Oct. 2, 2019	KRRO	Stock Option→ Common Stock (66,763)	66,763	Direct
Oct. 2, 2019	KRRO	Stock Option→ Common Stock (54,745)	54,745	Direct
Oct. 2, 2019	KRRO	Stock Option→ Common Stock (20,778)	20,778	Direct