CMRX

Chimerix INC

Insider trading activity for Chimerix INC, straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 6 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 12 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Transaction history

The 100 most recent Form 4 transactions.

Open in screener →

Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Apr 21, 2025	Vakiener Victoria	Director	DTOISS◆	60,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Vakiener Victoria	Director	DTOISS◆	60,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Vakiener Victoria	Director	DTOISS◆	50,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Vakiener Victoria	Director	DTOISS◆	35,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Vakiener Victoria	Director	DTOISS◆	60,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Sherman Michael A.	Chief Executive Officer	DTOISS◆	60,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Sherman Michael A.	Chief Executive Officer	DTOISS◆	557,050	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Sherman Michael A.	Chief Executive Officer	DTOISS◆	875,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Sherman Michael A.	Chief Executive Officer	DTOISS◆	700,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Sherman Michael A.	Chief Executive Officer	DTOISS◆	632,500	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Sherman Michael A.	Chief Executive Officer	DTOISS◆	1.2M	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Sherman Michael A.	Chief Executive Officer	DTOISS	233,413	$8.55	$2M	-100.0%	Open the original filing on SEC.gov
Apr 21, 2025	Sherman Michael A.	Chief Executive Officer	DTOISS	102,995	$8.55	$880.6K	-100.0%	Open the original filing on SEC.gov
Apr 21, 2025	Sherman Michael A.	Chief Executive Officer	DTOISS	87,000	$8.55	$743.9K	-100.0%	Open the original filing on SEC.gov
Apr 21, 2025	Riga Thomas J	COO and CCO	DTOISS◆	325,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Riga Thomas J	COO and CCO	DTOISS◆	800,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Riga Thomas J	COO and CCO	DTOISS	60,828	$8.55	$520.1K	-100.0%	Open the original filing on SEC.gov
Apr 21, 2025	Multani Pratik S	Director	DTOISS◆	60,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Multani Pratik S	Director	DTOISS◆	60,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Multani Pratik S	Director	DTOISS◆	50,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Multani Pratik S	Director	DTOISS◆	35,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Multani Pratik S	Director	DTOISS◆	35,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Multani Pratik S	Director	DTOISS◆	60,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Middleton Fred A	Director	DTOISS◆	60,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Middleton Fred A	Director	DTOISS◆	60,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Middleton Fred A	Director	DTOISS◆	50,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Middleton Fred A	Director	DTOISS◆	35,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Middleton Fred A	Director	DTOISS◆	35,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Middleton Fred A	Director	DTOISS◆	21,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Middleton Fred A	Director	DTOISS◆	21,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Middleton Fred A	Director	DTOISS◆	42,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Middleton Fred A	Director	DTOISS	207,523	$8.55	$1.8M	-100.0%	Open the original filing on SEC.gov
Apr 21, 2025	Middleton Fred A	Director	DTOISS	531,861	$8.55	$4.5M	-100.0%	Open the original filing on SEC.gov
Apr 21, 2025	Middleton Fred A	Director	DTOISS	2.8M	$8.55	$23.7M	-100.0%	Open the original filing on SEC.gov
Apr 21, 2025	Middleton Fred A	Director	DTOISS	60,000	$8.55	$513K	-100.0%	Open the original filing on SEC.gov
Apr 21, 2025	Middleton Fred A	Director	DTOISS	40,000	$8.55	$342K	-100.0%	Open the original filing on SEC.gov
Apr 21, 2025	Meyer Robert J.	Director	DTOISS◆	60,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Meyer Robert J.	Director	DTOISS◆	60,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Meyer Robert J.	Director	DTOISS◆	50,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Meyer Robert J.	Director	DTOISS◆	35,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Meyer Robert J.	Director	DTOISS◆	35,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Meyer Robert J.	Director	DTOISS◆	21,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Meyer Robert J.	Director	DTOISS◆	21,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Meyer Robert J.	Director	DTOISS◆	42,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Meyer Robert J.	Director	DTOISS	35,150	$8.55	$300.5K	-100.0%	Open the original filing on SEC.gov
Apr 21, 2025	Melemed Allen S.	Chief Medical Officer	DTOISS◆	275,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Melemed Allen S.	Chief Medical Officer	DTOISS◆	168,750	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Melemed Allen S.	Chief Medical Officer	DTOISS◆	154,260	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Melemed Allen S.	Chief Medical Officer	DTOISS◆	240,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Melemed Allen S.	Chief Medical Officer	DTOISS◆	190,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Melemed Allen S.	Chief Medical Officer	DTOISS◆	400,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Melemed Allen S.	Chief Medical Officer	DTOISS	173,852	$8.55	$1.5M	-100.0%	Open the original filing on SEC.gov
Apr 21, 2025	LaSpaluto Michelle	Chief Financial Officer	DTOISS◆	250,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	LaSpaluto Michelle	Chief Financial Officer	DTOISS◆	150,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	LaSpaluto Michelle	Chief Financial Officer	DTOISS◆	17,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	LaSpaluto Michelle	Chief Financial Officer	DTOISS◆	64,275	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	LaSpaluto Michelle	Chief Financial Officer	DTOISS◆	95,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	LaSpaluto Michelle	Chief Financial Officer	DTOISS◆	90,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	LaSpaluto Michelle	Chief Financial Officer	DTOISS◆	62,067	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	LaSpaluto Michelle	Chief Financial Officer	DTOISS◆	48,438	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	LaSpaluto Michelle	Chief Financial Officer	DTOISS◆	8,098	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	LaSpaluto Michelle	Chief Financial Officer	DTOISS◆	13,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	LaSpaluto Michelle	Chief Financial Officer	DTOISS◆	1,250	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	LaSpaluto Michelle	Chief Financial Officer	DTOISS◆	15,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	LaSpaluto Michelle	Chief Financial Officer	DTOISS◆	1,500	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	LaSpaluto Michelle	Chief Financial Officer	DTOISS◆	18,700	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	LaSpaluto Michelle	Chief Financial Officer	DTOISS	181,541	$8.55	$1.6M	-100.0%	Open the original filing on SEC.gov
Apr 21, 2025	Kozin Marc D	Director	DTOISS◆	60,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Kozin Marc D	Director	DTOISS◆	100,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Jakeman David	VP of Finance and…	DTOISS◆	65,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Jakeman David	VP of Finance and…	DTOISS◆	64,500	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Jakeman David	VP of Finance and…	DTOISS◆	18,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Jakeman David	VP of Finance and…	DTOISS◆	24,950	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Jakeman David	VP of Finance and…	DTOISS◆	1,500	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Jakeman David	VP of Finance and…	DTOISS◆	29,900	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Jakeman David	VP of Finance and…	DTOISS◆	30,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Jakeman David	VP of Finance and…	DTOISS◆	1,500	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Jakeman David	VP of Finance and…	DTOISS◆	28,320	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Jakeman David	VP of Finance and…	DTOISS◆	10,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Jakeman David	VP of Finance and…	DTOISS◆	9,360	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Jakeman David	VP of Finance and…	DTOISS◆	1,250	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Jakeman David	VP of Finance and…	DTOISS◆	7,200	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Jakeman David	VP of Finance and…	DTOISS◆	10,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Jakeman David	VP of Finance and…	DTOISS◆	10,150	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Jakeman David	VP of Finance and…	DTOISS	156,209	$8.55	$1.3M	-100.0%	Open the original filing on SEC.gov
Apr 21, 2025	Demski Martha J	Director	DTOISS◆	60,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Demski Martha J	Director	DTOISS◆	60,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Demski Martha J	Director	DTOISS◆	50,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Demski Martha J	Director	DTOISS◆	35,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Demski Martha J	Director	DTOISS◆	35,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Demski Martha J	Director	DTOISS◆	21,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Demski Martha J	Director	DTOISS◆	21,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Demski Martha J	Director	DTOISS◆	21,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Demski Martha J	Director	DTOISS◆	9,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Demski Martha J	Director	DTOISS◆	9,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Demski Martha J	Director	DTOISS	72,055	$8.55	$616.1K	-100.0%	Open the original filing on SEC.gov
Apr 21, 2025	Decker Lisa Lynn	Director	DTOISS◆	60,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Decker Lisa Lynn	Director	DTOISS◆	100,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Andriole Michael T.	President and CEO	DTOISS◆	900,000	—	—	—	Open the original filing on SEC.gov
Apr 21, 2025	Andriole Michael T.	President and CEO	DTOISS◆	502,500	—	—	—	Open the original filing on SEC.gov

DTOISS◆—

Vakiener Victoria · DirectorApr 21, 2025

60,000 sh

DTOISS◆—

Vakiener Victoria · DirectorApr 21, 2025

60,000 sh

DTOISS◆—

Vakiener Victoria · DirectorApr 21, 2025

50,000 sh

DTOISS◆—

Vakiener Victoria · DirectorApr 21, 2025

35,000 sh

DTOISS◆—

Vakiener Victoria · DirectorApr 21, 2025

60,000 sh

DTOISS◆—

Sherman Michael A. · Chief Executive…Apr 21, 2025

60,000 sh

DTOISS◆—

Sherman Michael A. · Chief Executive…Apr 21, 2025

557,050 sh

DTOISS◆—

Sherman Michael A. · Chief Executive…Apr 21, 2025

875,000 sh

DTOISS◆—

Sherman Michael A. · Chief Executive…Apr 21, 2025

700,000 sh

DTOISS◆—

Sherman Michael A. · Chief Executive…Apr 21, 2025

632,500 sh

DTOISS◆—

Sherman Michael A. · Chief Executive…Apr 21, 2025

1.2M sh

DTOISS$2M

Sherman Michael A. · Chief Executive…Apr 21, 2025

233,413 sh @ $8.55 · -100.0% own

DTOISS$880.6K

Sherman Michael A. · Chief Executive…Apr 21, 2025

102,995 sh @ $8.55 · -100.0% own

DTOISS$743.9K

Sherman Michael A. · Chief Executive…Apr 21, 2025

87,000 sh @ $8.55 · -100.0% own

DTOISS◆—

Riga Thomas J · COO and CCOApr 21, 2025

325,000 sh

DTOISS◆—

Riga Thomas J · COO and CCOApr 21, 2025

800,000 sh

DTOISS$520.1K

Riga Thomas J · COO and CCOApr 21, 2025

60,828 sh @ $8.55 · -100.0% own

DTOISS◆—

Multani Pratik S · DirectorApr 21, 2025

60,000 sh

DTOISS◆—

Multani Pratik S · DirectorApr 21, 2025

60,000 sh

DTOISS◆—

Multani Pratik S · DirectorApr 21, 2025

50,000 sh

DTOISS◆—

Multani Pratik S · DirectorApr 21, 2025

35,000 sh

DTOISS◆—

Multani Pratik S · DirectorApr 21, 2025

35,000 sh

DTOISS◆—

Multani Pratik S · DirectorApr 21, 2025

60,000 sh

DTOISS◆—

Middleton Fred A · DirectorApr 21, 2025

60,000 sh

DTOISS◆—

Middleton Fred A · DirectorApr 21, 2025

60,000 sh

DTOISS◆—

Middleton Fred A · DirectorApr 21, 2025

50,000 sh

DTOISS◆—

Middleton Fred A · DirectorApr 21, 2025

35,000 sh

DTOISS◆—

Middleton Fred A · DirectorApr 21, 2025

35,000 sh

DTOISS◆—

Middleton Fred A · DirectorApr 21, 2025

21,000 sh

DTOISS◆—

Middleton Fred A · DirectorApr 21, 2025

21,000 sh

DTOISS◆—

Middleton Fred A · DirectorApr 21, 2025

42,000 sh

DTOISS$1.8M

Middleton Fred A · DirectorApr 21, 2025

207,523 sh @ $8.55 · -100.0% own

DTOISS$4.5M

Middleton Fred A · DirectorApr 21, 2025

531,861 sh @ $8.55 · -100.0% own

DTOISS$23.7M

Middleton Fred A · DirectorApr 21, 2025

2.8M sh @ $8.55 · -100.0% own

DTOISS$513K

Middleton Fred A · DirectorApr 21, 2025

60,000 sh @ $8.55 · -100.0% own

DTOISS$342K

Middleton Fred A · DirectorApr 21, 2025

40,000 sh @ $8.55 · -100.0% own

DTOISS◆—

Meyer Robert J. · DirectorApr 21, 2025

60,000 sh

DTOISS◆—

Meyer Robert J. · DirectorApr 21, 2025

60,000 sh

DTOISS◆—

Meyer Robert J. · DirectorApr 21, 2025

50,000 sh

DTOISS◆—

Meyer Robert J. · DirectorApr 21, 2025

35,000 sh

DTOISS◆—

Meyer Robert J. · DirectorApr 21, 2025

35,000 sh

DTOISS◆—

Meyer Robert J. · DirectorApr 21, 2025

21,000 sh

DTOISS◆—

Meyer Robert J. · DirectorApr 21, 2025

21,000 sh

DTOISS◆—

Meyer Robert J. · DirectorApr 21, 2025

42,000 sh

DTOISS$300.5K

Meyer Robert J. · DirectorApr 21, 2025

35,150 sh @ $8.55 · -100.0% own

DTOISS◆—

Melemed Allen S. · Chief Medical…Apr 21, 2025

275,000 sh

DTOISS◆—

Melemed Allen S. · Chief Medical…Apr 21, 2025

168,750 sh

DTOISS◆—

Melemed Allen S. · Chief Medical…Apr 21, 2025

154,260 sh

DTOISS◆—

Melemed Allen S. · Chief Medical…Apr 21, 2025

240,000 sh

DTOISS◆—

Melemed Allen S. · Chief Medical…Apr 21, 2025

190,000 sh

DTOISS◆—

Melemed Allen S. · Chief Medical…Apr 21, 2025

400,000 sh

DTOISS$1.5M

Melemed Allen S. · Chief Medical…Apr 21, 2025

173,852 sh @ $8.55 · -100.0% own

DTOISS◆—

LaSpaluto Michelle · Chief Financial…Apr 21, 2025

250,000 sh

DTOISS◆—

LaSpaluto Michelle · Chief Financial…Apr 21, 2025

150,000 sh

DTOISS◆—

LaSpaluto Michelle · Chief Financial…Apr 21, 2025

17,000 sh

DTOISS◆—

LaSpaluto Michelle · Chief Financial…Apr 21, 2025

64,275 sh

DTOISS◆—

LaSpaluto Michelle · Chief Financial…Apr 21, 2025

95,000 sh

DTOISS◆—

LaSpaluto Michelle · Chief Financial…Apr 21, 2025

90,000 sh

DTOISS◆—

LaSpaluto Michelle · Chief Financial…Apr 21, 2025

62,067 sh

DTOISS◆—

LaSpaluto Michelle · Chief Financial…Apr 21, 2025

48,438 sh

DTOISS◆—

LaSpaluto Michelle · Chief Financial…Apr 21, 2025

8,098 sh

DTOISS◆—

LaSpaluto Michelle · Chief Financial…Apr 21, 2025

13,000 sh

DTOISS◆—

LaSpaluto Michelle · Chief Financial…Apr 21, 2025

1,250 sh

DTOISS◆—

LaSpaluto Michelle · Chief Financial…Apr 21, 2025

15,000 sh

DTOISS◆—

LaSpaluto Michelle · Chief Financial…Apr 21, 2025

1,500 sh

DTOISS◆—

LaSpaluto Michelle · Chief Financial…Apr 21, 2025

18,700 sh

DTOISS$1.6M

LaSpaluto Michelle · Chief Financial…Apr 21, 2025

181,541 sh @ $8.55 · -100.0% own

DTOISS◆—

Kozin Marc D · DirectorApr 21, 2025

60,000 sh

DTOISS◆—

Kozin Marc D · DirectorApr 21, 2025

100,000 sh

DTOISS◆—