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VSTM — Performance
More Insider Buying
Other companies seeing insider buying close in time to when the VSTM Insider Buying occurred are:

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VSTM insider buying image
The table below summarizes the most recent VSTM insider buying information, with links below the price to see the CAGR achieved by each insider on their purchases. As the saying goes on Wall St., there are many possible reasons to sell a stock, but only one reason to buy. Watch the importance of insider buying video for more information about why VSTM insider buys are important for investors to follow.
DateInsiderPriceAmount
12-4-2020
Insider Buy		 Timothy J. Barberich
Director		 $2.17
CAGR » 		$108,500.00
50,000 shares
3-15-2019
Insider Buy		 Timothy J. Barberich
Director		 $3.21
CAGR » 		$105,930.00
33,000 shares
9-28-2018
Insider Buy		 Dan Paterson
Chief Operating Officer		 $7.00
CAGR » 		$21,000.00
3,000 shares
9-28-2018
Insider Buy		 Robert Forrester
President and CEO		 $7.00
CAGR » 		$14,000.00
2,000 shares
9-28-2018
Insider Buy		 Timothy J. Barberich
Director		 $7.31
CAGR » 		$36,550.00
5,000 shares
9-28-2018
Insider Buy		 Joseph M. Lobacki
Executive VP & CCO		 $7.30
CAGR » 		$21,900.00
3,000 shares
9-28-2018
Insider Buy		 Brian M. Stuglik
Director		 $7.30
CAGR » 		$7,303.00
1,000 shares
9-27-2018
Insider Buy		 Dan Paterson
Chief Operating Officer		 $7.03
CAGR » 		$14,056.00
2,000 shares
9-27-2018
Insider Buy		 Robert Forrester
President and CEO		 $7.00
CAGR » 		$73,500.00
10,500 shares
6-8-2018
Insider Buy		 Steven H. Bloom
Chief Strategy Officer		 $5.98
CAGR » 		$17,940.00
3,000 shares
6-8-2018
Insider Buy		 Joseph M. Lobacki
Executive VP & CCO		 $5.79
CAGR » 		$44,583.00
7,700 shares
12-5-2017
Insider Buy		 Timothy J. Barberich
Director		 $3.95
CAGR » 		$239,125.10
60,538 shares
5-15-2017
Insider Buy		 Timothy J. Barberich
Director		 $2.45
CAGR » 		$73,500.00
30,000 shares
6-29-2015
Insider Buy		 John B. Green
Chief Financial Officer		 $7.12
CAGR » 		$3,560.00
500 shares
6-29-2015
Insider Buy		 Monica Singh
General Counsel		 $6.95
CAGR » 		$6,950.00
1,000 shares
6-29-2015
Insider Buy		 Robert Forrester
President and CEO		 $7.11
CAGR » 		$14,210.00
2,000 shares
6-26-2015
Insider Buy		 John B. Green
Chief Financial Officer		 $7.39
CAGR » 		$3,695.95
500 shares
6-18-2015
Insider Buy		 Dan Paterson
Chief Operating Officer		 $8.04
CAGR » 		$8,045.00
1,000 shares
6-17-2015
Insider Buy		 Robert Forrester
President and CEO		 $7.97
CAGR » 		$7,970.00
1,000 shares
1-28-2015
Insider Buy		 Christoph H. Westphal
Executive Chairman		 $6.50
CAGR » 		$7,999,998.50
1,230,769 shares
1-28-2015
Insider Buy		 Timothy J. Barberich
Director		 $6.50
CAGR » 		$250,003.00
38,462 shares
12-23-2014
Insider Buy		 Henri A. Termeer
Director		 $8.11
CAGR » 		$235,133.70
29,000 shares
12-29-2014
Insider Buy		 Joanna Horobin
Chief Medical Officer		 $8.60
CAGR » 		$6,450.00
750 shares
12-29-2014
Insider Buy		 S. Louise Phanstiel
Director		 $8.54
CAGR » 		$85,435.00
10,000 shares
12-24-2014
Insider Buy		 Paul A. Friedman
Director		 $8.31
CAGR » 		$24,932.40
3,000 shares
12-26-2014
Insider Buy		 Stephen A. Sherwin
Director		 $8.56
CAGR » 		$21,395.00
2,500 shares
12-23-2014
Insider Buy		 John B. Green
Chief Financial Officer		 $8.17
CAGR » 		$4,085.00
500 shares
12-23-2014
Insider Buy		 Monica Singh
General Counsel		 $8.09
CAGR » 		$8,089.00
1,000 shares
12-23-2014
Insider Buy		 John B. Green
Chief Financial Officer		 $8.17
CAGR » 		$4,085.00
500 shares
12-19-2014
Insider Buy		 Christoph H. Westphal
Executive Chairman		 $8.50
CAGR » 		$12,750.00
1,500 shares
12-19-2014
Insider Buy		 Dan Paterson
Chief Operating Officer		 $8.52
CAGR » 		$17,039.80
2,000 shares
12-19-2014
Insider Buy		 Robert Forrester
President and CEO		 $8.66
CAGR » 		$8,660.00
1,000 shares
11-11-2014
Insider Buy		 Alison Frances Lawton
Director		 $9.17
CAGR » 		$22,923.00
2,500 shares
5-30-2014
Insider Buy		 Timothy J. Barberich
Director		 $9.89
CAGR » 		$9,895.00
1,000 shares
5-20-2014
Insider Buy		 Richard Aldrich
Director		 $8.37
CAGR » 		$8,370.00
1,000 shares
5-15-2014
Insider Buy		 Dan Paterson
Chief Business Officer		 $7.47
CAGR » 		$7,467.00
1,000 shares
5-14-2014
Insider Buy		 Christoph H. Westphal
Executive Chairman		 $7.56
CAGR » 		$15,120.00
2,000 shares
5-13-2014
Insider Buy		 Jonathan Pachter
VP, Head of Research		 $7.62
CAGR » 		$7,620.00
1,000 shares
5-13-2014
Insider Buy		 John B. Green
Chief Financial Officer		 $7.74
CAGR » 		$7,740.00
1,000 shares
5-13-2014
Insider Buy		 Robert Forrester
President and CEO		 $7.62
CAGR » 		$7,620.00
1,000 shares
11-18-2013
Insider Buy		 Christoph H. Westphal
Director and >10% Owner		 $9.60
CAGR » 		$9,602.00
1,000 shares
11-11-2013
Insider Buy		 Richard Aldrich
Director and >10% Owner		 $10.93
CAGR » 		$10,930.00
1,000 shares
11-4-2013
Insider Buy		 Richard Aldrich
Director and >10% Owner		 $10.51
CAGR » 		$10,510.00
1,000 shares
10-28-2013
Insider Buy		 Richard Aldrich
Director and >10% Owner		 $11.26
CAGR » 		$11,260.00
1,000 shares
10-21-2013
Insider Buy		 Richard Aldrich
Director and >10% Owner		 $12.57
CAGR » 		$12,570.00
1,000 shares
10-14-2013
Insider Buy		 Richard Aldrich
Director and >10% Owner		 $10.56
CAGR » 		$10,560.00
1,000 shares
10-7-2013
Insider Buy		 Richard Aldrich
Director and >10% Owner		 $11.53
CAGR » 		$11,530.00
1,000 shares
9-30-2013
Insider Buy		 Richard Aldrich
Director and >10% Owner		 $12.55
CAGR » 		$12,550.00
1,000 shares
9-23-2013
Insider Buy		 Richard Aldrich
Director and >10% Owner		 $13.17
CAGR » 		$13,170.00
1,000 shares
9-16-2013
Insider Buy		 Richard Aldrich
Director and >10% Owner		 $13.81
CAGR » 		$13,810.00
1,000 shares
9-9-2013
Insider Buy		 Richard Aldrich
Director and >10% Owner		 $14.04
CAGR » 		$14,040.00
1,000 shares
9-3-2013
Insider Buy		 Richard Aldrich
Director and >10% Owner		 $14.07
CAGR » 		$14,070.00
1,000 shares
8-26-2013
Insider Buy		 Richard Aldrich
Director and >10% Owner		 $14.21
CAGR » 		$14,210.00
1,000 shares
8-19-2013
Insider Buy		 Richard Aldrich
Director and >10% Owner		 $13.45
CAGR » 		$13,450.00
1,000 shares
8-12-2013
Insider Buy		 Richard Aldrich
Director and >10% Owner		 $14.75
CAGR » 		$14,750.00
1,000 shares
8-5-2013
Insider Buy		 Richard Aldrich
Director and >10% Owner		 $15.25
CAGR » 		$15,250.00
1,000 shares
7-29-2013
Insider Buy		 Richard Aldrich
Director and >10% Owner		 $15.15
CAGR » 		$15,150.00
1,000 shares
7-24-2013
Insider Buy		 Richard Aldrich
Director and >10% Owner		 $16.39
CAGR » 		$16,390.00
1,000 shares
7-15-2013
Insider Buy		 Richard Aldrich
Director and >10% Owner		 $17.19
CAGR » 		$17,190.00
1,000 shares
7-8-2013
Insider Buy		 Richard Aldrich
Director and >10% Owner		 $14.69
CAGR » 		$14,690.00
1,000 shares
7-1-2013
Insider Buy		 Richard Aldrich
Director and >10% Owner		 $14.11
CAGR » 		$14,110.00
1,000 shares
6-13-2013
Insider Buy		 Robert Forrester
President and COO		 $11.39
CAGR » 		$11,394.00
1,000 shares
6-12-2013
Insider Buy		 LP Chp III
>10% Owner		 $9.40
CAGR » 		$452,902.88
48,171 shares
6-12-2013
Insider Buy		 Henri A. Termeer
Director		 $9.74
CAGR » 		$56,741.06
5,823 shares
6-12-2013
Insider Buy		 S. Louise Phanstiel
Director		 $9.60
CAGR » 		$43,202.25
4,500 shares
6-12-2013
Insider Buy		 John K. Clarke
Director		 $9.60
CAGR » 		$222,425.38
23,171 shares
6-12-2013
Insider Buy		 Henri A. Termeer
Director		 $9.74
CAGR » 		$56,741.06
5,823 shares
6-12-2013
Insider Buy		 S. Louise Phanstiel
Director		 $9.60
CAGR » 		$43,202.25
4,500 shares
6-12-2013
Insider Buy		 John K. Clarke
Director		 $9.60
CAGR » 		$222,425.38
23,171 shares
6-11-2013
Insider Buy		 S. Louise Phanstiel
Director		 $9.30
CAGR » 		$111,627.60
12,000 shares
6-11-2013
Insider Buy		 John K. Clarke
Director		 $9.22
CAGR » 		$230,477.50
25,000 shares
6-11-2013
Insider Buy		 Henri A. Termeer
Director		 $9.35
CAGR » 		$106,220.62
11,356 shares
6-7-2013
Insider Buy		 Christoph H. Westphal
Chief Executive Officer		 $9.06
CAGR » 		$9,056.00
1,000 shares
5-21-2013
Insider Buy		 Christoph H. Westphal
Chief Executive Officer		 $9.24
CAGR » 		$7,392.96
800 shares
5-13-2013
Insider Buy		 John K. Clarke
Director		 $9.73
CAGR » 		$243,375.00
25,000 shares
5-13-2013
Insider Buy		 LP Chp III
>10% Owner		 $9.73
CAGR » 		$243,375.00
25,000 shares
5-3-2013
Insider Buy		 Christoph H. Westphal
Chief Executive Officer		 $9.83
CAGR » 		$7,862.48
800 shares
5-1-2013
Insider Buy		 John K. Clarke
Director		 $9.66
CAGR » 		$96,622.00
10,000 shares
5-1-2013
Insider Buy		 LP Chp III
>10% Owner		 $9.66
CAGR » 		$96,620.00
10,000 shares
4-17-2013
Insider Buy		 John K. Clarke
Director		 $9.50
CAGR » 		$53,488.87
5,631 shares
4-17-2013
Insider Buy		 Christoph H. Westphal
Chief Executive Officer		 $9.53
CAGR » 		$7,624.00
800 shares
4-17-2013
Insider Buy		 LP Chp III
>10% Owner		 $9.50
CAGR » 		$53,488.87
5,631 shares
3-21-2013
Insider Buy		 Christoph H. Westphal
Chief Executive Officer		 $9.04
CAGR » 		$7,232.00
800 shares
3-5-2013
Insider Buy		 Christoph H. Westphal
Chief Executive Officer		 $9.47
CAGR » 		$7,576.00
800 shares
1-2-2013
Insider Buy		 Christoph H. Westphal
President and C.E.O.		 $9.73
CAGR » 		$7,784.00
800 shares
12-18-2012
Insider Buy		 LP Chp III
>10% Owner		 $7.87
CAGR » 		$48,738.91
6,193 shares
12-18-2012
Insider Buy		 John K. Clarke
Director		 $7.87
CAGR » 		$48,738.91
6,193 shares
2-1-2012
Insider Buy		 MPM BIOVENTURES V LLC
 $10.00
CAGR » 		$1,000,000.00
100,000 shares
2-1-2012
Insider Buy		 Venture Partners Vii L.P. Bessemer
Director and >10% Owner		 $10.00
CAGR » 		$1,000,000.00
100,000 shares
2-1-2012
Insider Buy		 Ansbert Gadicke
Director		 $10.00
CAGR » 		$1,000,000.00
100,000 shares
2-1-2012
Insider Buy		 John K. Clarke
Director		 $10.00
CAGR » 		$2,500,000.00
250,000 shares
1-27-2012
Insider Buy		 LP Chp III
>10% Owner		 $10.00
CAGR » 		$2,500,000.00
250,000 shares

Also See: Institutional Holders of VSTM
Also See: SEC filings

VSTM Performance Since Insider Purchase
Below we present the annualized performance delivered by VSTM stock since 12-4-2020 (the date of the most recent insider purchase). The performance of the investment from the time VSTM insider buying occurred is the ultimate test of whether insiders were right about VSTM being a good buy.

Growth of $10,000.00
Without Dividends Reinvested
Start date: 12/07/2020
End date: 04/23/2024
Start price/share: $27.12
End price/share: $9.61
Dividends collected/share: $0.00
Total return: -64.56%
Average Annual Total Return: -26.46%
Starting investment: $10,000.00
Ending investment: $3,543.82
Years: 3.38

VSTM Insider Buying

This Holdings Channel page has presented insider buying activity, covering Directors, officers (such as CEO, CFO, COO, etc.), and >10% owners (who are required to file form 4's with the SEC). Important institutional owners may not fall under these categories, but instead file their holdings quarterly on the latest form 13F filings. While recent VSTM insider buying activity is included, there may also be stock sales over this same period (Also See: SEC filings for sales and other details).

Also See: Funds Holding VSTM

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