KRRO - Korro Bio, Inc. - Insider Stock Trading

Filing Date	T Date	Ticker	Sector	Ind	Industry	Owner	oSt	Rel	Title	T	TVal	Price	Qty	oc	Own	H
4/24/24 17:00	4/22/24	KRRO	Health	Drug	Pharmaceutical Preparations	New Enterprise Associates 17, L.P.	MD	T		P	1,000	56.00	18	2	1,091	D
4/24/24 17:00	4/22/24	KRRO	Health	Drug	Pharmaceutical Preparations	Baskett Forest	CA	T		P	1,000	56.00	18	2	1,091	I
4/24/24 17:00	4/22/24	KRRO	Health	Drug	Pharmaceutical Preparations	Florence Anthony A. Jr.	NY	T		P	1,000	56.00	18	2	1,091	I
4/24/24 17:00	4/22/24	KRRO	Health	Drug	Pharmaceutical Preparations	Walker Paul Edward	CA	T		P	1,000	56.00	18	2	1,091	I
4/24/24 17:00	4/22/24	KRRO	Health	Drug	Pharmaceutical Preparations	Chang Carmen	CA	T		P	1,000	56.00	18	2	1,091	I
4/24/24 17:00	4/22/24	KRRO	Health	Drug	Pharmaceutical Preparations	Mathers Edward T	NY	T		P	1,000	56.00	18	2	1,091	I
4/24/24 17:00	4/22/24	KRRO	Health	Drug	Pharmaceutical Preparations	Yang Rick	CA	T		P	1,000	56.00	18	2	1,091	I
4/24/24 17:00	4/22/24	KRRO	Health	Drug	Pharmaceutical Preparations	Makhzoumi Mohamad	CA	T		P	1,000	56.00	18	2	1,091	I
4/24/24 17:00	4/22/24	KRRO	Health	Drug	Pharmaceutical Preparations	Sandell Scott D	MD	T		P	1,000	56.00	18	2	1,091	I
4/23/24 17:23	4/22/24	KRRO	Health	Drug	Pharmaceutical Preparations	Atlas Venture Opportunity Fund Ii, L.P.	MA	T		P	1,000	56.00	18	10	195	D
11/27/23 20:48	11/22/23	KRRO	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	D		S	-44	37.69	-1	-5	22	D
11/22/23 16:05	11/3/23	KRRO	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	D		M.d	0	0.00	6	32	23	D
11/22/23 16:05	11/10/23	KRRO	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	D		S.d	-41	41.98	-1	-4	23	D
8/22/23 16:21	8/18/23	FREQ	Health	Drug	Pharmaceutical Preparations	Mitrano Richard J.	MA	O	VP Finan	S.m	0	0.5789	0	-1	52	D
8/22/23 16:19	8/18/23	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	S.m	-3	0.5484	-6	-1	634	D
8/18/23 08:05	8/16/23	FREQ	Health	Drug	Pharmaceutical Preparations	Mitrano Richard J.	MA	O	VP Finan	S.m	0	0.6452	0	-1	53	D
8/18/23 08:01	8/16/23	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	S.m	-4	0.6403	-6	-1	640	D
8/16/23 09:02	8/14/23	FREQ	Health	Drug	Pharmaceutical Preparations	Mitrano Richard J.	MA	O	VP Finan	S.m	0	0.6449	0	-1	53	D
8/16/23 08:59	8/14/23	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	S.m	-4	0.6491	-6	-1	645	D
8/14/23 16:07	8/10/23	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	S.m	-4	0.6751	-6	-1	651	D
8/14/23 16:06	8/10/23	FREQ	Health	Drug	Pharmaceutical Preparations	Mitrano Richard J.	MA	O	VP Finan	S.m	0	0.6400	0	-1	54	D
8/10/23 16:04	8/8/23	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	S.m	-4	0.6800	-6	-1	656	D
8/10/23 16:02	8/8/23	FREQ	Health	Drug	Pharmaceutical Preparations	Mitrano Richard J.	MA	O	VP Finan	S.m	0	0.6650	0	-1	54	D
8/9/23 08:51	8/4/23	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	S.m	-4	0.6847	-5	-1	662	D
8/9/23 08:50	8/4/23	FREQ	Health	Drug	Pharmaceutical Preparations	Mitrano Richard J.	MA	O	VP Finan	S.m	0	0.6803	0	-1	55	D
8/4/23 16:10	8/2/23	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	S.m	-3	0.5556	-5	-1	667	D
8/4/23 16:09	8/2/23	FREQ	Health	Drug	Pharmaceutical Preparations	Mitrano Richard J.	MA	O	VP Finan	S.m	0	0.5251	0	-1	55	D
8/2/23 16:36	7/31/23	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	S.m	-3	0.4949	-5	-1	673	D
8/2/23 16:35	7/31/23	FREQ	Health	Drug	Pharmaceutical Preparations	Mitrano Richard J.	MA	O	VP Finan	S.m	0	0.4897	0	-1	56	D
7/31/23 16:09	7/27/23	FREQ	Health	Drug	Pharmaceutical Preparations	Mitrano Richard J.	MA	O	VP Finan	S.m	0	0.5003	0	-1	56	D
7/31/23 16:05	7/27/23	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	S.m	-3	0.4905	-5	-1	678	D
7/31/23 16:01	7/27/23	FREQ	Health	Drug	Pharmaceutical Preparations	Loose Christopher R.	MA	O	Chief Sc	S.m	-1	0.4954	-3	-1	184	D
7/27/23 16:16	7/25/23	FREQ	Health	Drug	Pharmaceutical Preparations	Mitrano Richard J.	MA	O	VP Finan	S.m	0	0.5146	0	-1	57	D
7/27/23 16:16	7/25/23	FREQ	Health	Drug	Pharmaceutical Preparations	Loose Christopher R.	MA	O	Chief Sc	S.m	-1	0.5049	-3	-1	186	D
7/27/23 16:15	7/25/23	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	S.m	-3	0.5096	-5	-1	684	D
7/25/23 16:56	7/21/23	FREQ	Health	Drug	Pharmaceutical Preparations	Loose Christopher R.	MA	O	Chief Sc	S.m	-2	0.5737	-3	-1	189	D
7/25/23 16:56	7/21/23	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	S.m	-3	0.5736	-6	-1	689	D
7/25/23 16:55	7/21/23	FREQ	Health	Drug	Pharmaceutical Preparations	Mitrano Richard J.	MA	O	VP Finan	S.m	0	0.5849	0	-1	57	D
7/21/23 16:07	7/19/23	FREQ	Health	Drug	Pharmaceutical Preparations	Loose Christopher R.	MA	O	Chief Sc	S.m	-2	0.6450	-3	-1	192	D
7/21/23 16:06	7/19/23	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	S.m	-3	0.6449	-5	-1	694	D
7/21/23 16:04	7/19/23	FREQ	Health	Drug	Pharmaceutical Preparations	Mitrano Richard J.	MA	O	VP Finan	S.m	0	0.6350	0	-1	58	D
7/19/23 16:16	7/17/23	FREQ	Health	Drug	Pharmaceutical Preparations	Mitrano Richard J.	MA	O	VP Finan	S.m	0	0.6045	0	-1	58	D
7/19/23 16:14	7/17/23	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	S.m	-4	0.6180	-6	-1	700	D
7/19/23 16:13	7/17/23	FREQ	Health	Drug	Pharmaceutical Preparations	Loose Christopher R.	MA	O	Chief Sc	S.m	-2	0.6137	-3	-1	195	D
7/17/23 16:23	7/13/23	FREQ	Health	Drug	Pharmaceutical Preparations	Loose Christopher R.	MA	O	Chief Sc	S.m	-1	0.4711	-2	-1	197	D
7/17/23 16:22	7/13/23	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	S.m	-2	0.4714	-4	-1	706	D
7/17/23 16:20	7/13/23	FREQ	Health	Drug	Pharmaceutical Preparations	Mitrano Richard J.	MA	O	VP Finan	S.m	0	0.4729	0	-1	59	D
7/13/23 16:42	7/11/23	FREQ	Health	Drug	Pharmaceutical Preparations	Loose Christopher R.	MA	O	Chief Sc	S.m	-1	0.3799	-3	-1	200	D
7/13/23 16:14	7/11/23	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	S.m	-2	0.3798	-5	-1	710	D
7/13/23 16:09	7/11/23	FREQ	Health	Drug	Pharmaceutical Preparations	Mitrano Richard J.	MA	O	VP Finan	S.m	0	0.3847	0	-1	59	D
7/12/23 21:25	7/7/23	FREQ	Health	Drug	Pharmaceutical Preparations	Mitrano Richard J.	MA	O	VP Finan	S.am	0	0.3650	0	-1	59	D
7/12/23 21:22	7/7/23	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	S.am	-2	0.3649	-5	-1	715	D
7/12/23 21:20	7/7/23	FREQ	Health	Drug	Pharmaceutical Preparations	Loose Christopher R.	MA	O	Chief Sc	S.am	-1	0.3650	-3	-1	202	D
7/12/23 21:18	7/4/23	FREQ	Health	Drug	Pharmaceutical Preparations	Mitrano Richard J.	MA	O	VP Finan	M.ad	0	0.00	25	72	60	D
7/12/23 21:18	7/6/23	FREQ	Health	Drug	Pharmaceutical Preparations	Mitrano Richard J.	MA	O	VP Finan	S.ad	0	0.3500	0	0	60	D
7/12/23 21:16	7/4/23	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	M.ad	0	0.00	300	71	721	D
7/12/23 21:16	7/6/23	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	S.ad	-1	0.3400	-3	0	721	D
7/12/23 21:15	7/4/23	FREQ	Health	Drug	Pharmaceutical Preparations	Loose Christopher R.	MA	O	Chief Sc	M.ad	0	0.00	150	308	199	D
7/12/23 21:15	7/6/23	FREQ	Health	Drug	Pharmaceutical Preparations	Loose Christopher R.	MA	O	Chief Sc	S.ad	0	0.3400	-1	-1	199	D
7/11/23 17:35	7/7/23	FREQ	Health	Drug	Pharmaceutical Preparations	Loose Christopher R.	MA	O	Chief Sc	S.dm	-1	0.3650	-3	-4	71	D
7/11/23 17:35	7/7/23	FREQ	Health	Drug	Pharmaceutical Preparations	Loose Christopher R.	MA	O	Chief Sc	M.dm	0	0.00	9	15	71	D
7/11/23 17:29	7/7/23	FREQ	Health	Drug	Pharmaceutical Preparations	Mitrano Richard J.	MA	O	VP Finan	S.dm	0	0.3650	0	-1	37	D
7/11/23 17:29	7/7/23	FREQ	Health	Drug	Pharmaceutical Preparations	Mitrano Richard J.	MA	O	VP Finan	M.dm	0	0.00	2	4	37	D
7/11/23 17:24	7/7/23	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	S.dm	-2	0.3649	-5	-1	452	D
7/11/23 17:24	7/7/23	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	M.dm	0	0.00	18	4	452	D
7/7/23 17:06	7/5/23	FREQ	Health	Drug	Pharmaceutical Preparations	Mitrano Richard J.	MA	O	VP Finan	M.dm	0	0.00	2	4	36	D
7/7/23 17:06	7/6/23	FREQ	Health	Drug	Pharmaceutical Preparations	Mitrano Richard J.	MA	O	VP Finan	S.d	0	0.3500	0	-1	36	D
7/7/23 16:56	7/5/23	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	M.dm	0	0.00	18	4	439	D
7/7/23 16:56	7/6/23	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	S.d	-1	0.3400	-3	-1	439	D
7/7/23 16:54	7/5/23	FREQ	Health	Drug	Pharmaceutical Preparations	Loose Christopher R.	MA	O	Chief Sc	M.dm	0	0.00	9	19	58	D
7/7/23 16:54	7/6/23	FREQ	Health	Drug	Pharmaceutical Preparations	Loose Christopher R.	MA	O	Chief Sc	S.d	0	0.3400	-1	-2	58	D
7/7/22 16:53	7/5/22	FREQ	Health	Drug	Pharmaceutical Preparations	Mitrano Richard J.	MA	O	VP Finan	M.d	0	0.00	8	27	35	D
7/7/22 16:53	7/6/22	FREQ	Health	Drug	Pharmaceutical Preparations	Mitrano Richard J.	MA	O	VP Finan	S.d	-3	1.54	-2	-6	35	D
7/7/22 16:51	7/5/22	FREQ	Health	Drug	Pharmaceutical Preparations	Loose Christopher R.	MA	O	Chief Sc	M.d	0	0.00	15	43	50	D
7/7/22 16:51	7/6/22	FREQ	Health	Drug	Pharmaceutical Preparations	Loose Christopher R.	MA	O	Chief Sc	S.d	-7	1.53	-4	-8	50	D
7/7/22 16:50	7/5/22	FREQ	Health	Drug	Pharmaceutical Preparations	McCubbin Quentin	MA	O	Chief Ma	M.d	0	0.00	18	84	38	D
7/7/22 16:50	7/6/22	FREQ	Health	Drug	Pharmaceutical Preparations	McCubbin Quentin	MA	O	Chief Ma	S.d	-10	1.52	-7	-15	38	D
7/7/22 16:49	7/5/22	FREQ	Health	Drug	Pharmaceutical Preparations	Arnold Wendy S	MA	O	Chief Pe	M.d	0	0.00	15	242	21	D
7/7/22 16:49	7/6/22	FREQ	Health	Drug	Pharmaceutical Preparations	Arnold Wendy S	MA	O	Chief Pe	S.d	-9	1.52	-6	-21	21	D
7/7/22 16:47	7/5/22	FREQ	Health	Drug	Pharmaceutical Preparations	Lebel Carl	MA	O	Chief De	M.d	0	0.00	15	132	26	D
7/7/22 16:47	7/6/22	FREQ	Health	Drug	Pharmaceutical Preparations	Lebel Carl	MA	O	Chief De	S.d	-7	1.52	-4	-14	26	D
2/23/22 16:41	2/18/22	FREQ	Health	Drug	Pharmaceutical Preparations	Loose Christopher R.	MA	O	Chief Sc	S.m	-8	3.69	-2	-6	35	D
2/23/22 16:38	2/18/22	FREQ	Health	Drug	Pharmaceutical Preparations	Pfreundschuh Peter P.	MA	O	CFO	S.m	-11	3.69	-3	-25	9	D
2/23/22 16:36	2/18/22	FREQ	Health	Drug	Pharmaceutical Preparations	Lebel Carl	MA	O	Chief De	S.m	-8	3.69	-2	-16	11	D
2/23/22 16:34	2/18/22	FREQ	Health	Drug	Pharmaceutical Preparations	McCubbin Quentin	MA	O	Chief Ma	S.m	-11	3.69	-3	-12	23	D
2/23/22 16:32	2/18/22	FREQ	Health	Drug	Pharmaceutical Preparations	Arnold Wendy S	MA	O	Chief Pe	S.m	-9	3.70	-3	-18	12	D
2/18/22 16:14	2/16/22	FREQ	Health	Drug	Pharmaceutical Preparations	Pfreundschuh Peter P.	MA	O	CFO	S.dm	-11	4.31	-3	-18	12	D
2/18/22 16:13	2/16/22	FREQ	Health	Drug	Pharmaceutical Preparations	Loose Christopher R.	MA	O	Chief Sc	S.dm	-8	4.31	-2	-5	37	D
2/18/22 16:12	2/16/22	FREQ	Health	Drug	Pharmaceutical Preparations	Lebel Carl	MA	O	Chief De	S.dm	-7	4.30	-2	-12	13	D
2/18/22 16:10	2/16/22	FREQ	Health	Drug	Pharmaceutical Preparations	McCubbin Quentin	MA	O	Chief Ma	S.dm	-11	4.31	-3	-9	26	D
2/18/22 16:08	2/16/22	FREQ	Health	Drug	Pharmaceutical Preparations	Arnold Wendy S	MA	O	Chief Pe	S.dm	-9	4.31	-2	-13	14	D
2/16/22 17:05	2/14/22	FREQ	Health	Drug	Pharmaceutical Preparations	Lebel Carl	MA	O	Chief De	M.d	0	0.00	15		15	D
2/16/22 17:05	2/15/22	FREQ	Health	Drug	Pharmaceutical Preparations	Lebel Carl	MA	O	Chief De	S.d	-4	4.33	-1	-5	15	D
2/16/22 17:04	2/14/22	FREQ	Health	Drug	Pharmaceutical Preparations	McCubbin Quentin	MA	O	Chief Ma	M.d	0	0.00	18	162	28	D
2/16/22 17:04	2/15/22	FREQ	Health	Drug	Pharmaceutical Preparations	McCubbin Quentin	MA	O	Chief Ma	S.d	-5	4.33	-1	-4	28	D
2/16/22 17:02	2/14/22	FREQ	Health	Drug	Pharmaceutical Preparations	Loose Christopher R.	MA	O	Chief Sc	M.d	0	0.00	15	64	39	D
2/16/22 17:02	2/15/22	FREQ	Health	Drug	Pharmaceutical Preparations	Loose Christopher R.	MA	O	Chief Sc	S.d	-4	4.33	-1	-2	39	D
2/16/22 16:59	2/14/22	FREQ	Health	Drug	Pharmaceutical Preparations	Pfreundschuh Peter P.	MA	O	CFO	M.d	0	0.00	15		14	D
2/16/22 16:59	2/15/22	FREQ	Health	Drug	Pharmaceutical Preparations	Pfreundschuh Peter P.	MA	O	CFO	S.d	-6	4.33	-1	-9	14	D
2/16/22 16:50	2/14/22	FREQ	Health	Drug	Pharmaceutical Preparations	Arnold Wendy S	MA	O	Chief Pe	M.d	0	0.00	15	978	17	D
2/16/22 16:50	2/15/22	FREQ	Health	Drug	Pharmaceutical Preparations	Arnold Wendy S	MA	O	Chief Pe	S.d	-5	4.33	-1	-7	17	D
1/20/22 08:33	1/18/22	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	M.d	4	0.6100	7	1	470	D
12/21/21 17:03	12/20/21	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	M.d	4	0.6100	7	2	463	D
11/4/21 17:48	11/2/21	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	M.d	4	0.6100	7	2	456	D
10/7/21 16:13	10/5/21	FREQ	Health	Drug	Pharmaceutical Preparations	Lucchino David L.	MA	DO	P,CEO	M.d	4	0.6100	7	2	449	D

D	Derivative transaction in filing (usually option exercise)
M	Multiple transactions in filing; earliest reported transaction date and weighted average transaction price
A	Amended filing
E	Error detected in filing

S - Sale	Sale of securities on an exchange or to another person
S - Sale+OE	Sale of securities on an exchange or to another person (after option exercise)
F - Tax	Payment of exercise price or tax liability using portion of securities received from the company
P - Purchase	Purchase of securities on an exchange or from another person

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