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Insider Trading: Natus Medical Inc
Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Natus Medical Inc in the last 24 months are illustrated in figures 1 and 2. Table 1 shows the monthly insider trading data of Natus Medical Inc since year 2005. Table 2 shows the detailed insider transactions of Natus Medical Inc since 2005.
The reporting company's ticker symbol is BABY.
The reporting company's CIK number is 878526.
The total value of stock buying since 2005 is $35,489,905.
The total value of stock sales is $3,558,016.
The total value of stock exercises is $521,244.
1 year stock price chart,
1 day stock price chart
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Figure 1. Monthly insider transaction values at Natus Medical Inc (BABY) in the past 24 months.
The trade values of insider stock buys, sales, and option exercises are in logarithmic scale
as shown on the right axis labels.
The detailed monthly and daily insider transactions are listed in the 2 tables below.
09 10 11 12 01 2007 02 03 04 05 06 07 08 09 10 11 12 01 2008 02 03 04 05 06 07 08 -
Figure 2. Average prices of insider buys, sales, and option exercises at Natus Medical Inc (BABY) in the past 24 months. See table 2 for insider transaction details.
09 10 11 12 01 2007 02 03 04 05 06 07 08 09 10 11 12 01 2008 02 03 04 05 06 07 08 -
Table 1. Monthly summaries of insider stock purchases, sales, and option exercises
for Natus Medical Inc (BABY).
Trading Period
year-month |
Insider Buying
Shares Value ($) |
Insider Sales
Shares Value ($) |
Option Exercises
Shares Value ($) |
| 2008-08 | 0 | 0 | 7,521 | 181,204 | 0 | 0 |
| 2008-04 | 875,000 | 15,986,250 | 0 | 0 | 0 | 0 |
| 2007-12 | 0 | 0 | 10,577 | 189,305 | 0 | 0 |
| 2007-11 | 12,000 | 186,380 | 0 | 0 | 0 | 0 |
| 2007-09 | 36,431 | 512,344 | 0 | 0 | 0 | 0 |
| 2007-08 | 4,000 | 63,960 | 0 | 0 | 0 | 0 |
| 2007-07 | 64,500 | 964,578 | 0 | 0 | 3,500 | 39,620 |
| 2007-05 | 225,000 | 3,343,500 | 0 | 0 | 0 | 0 |
| 2007-01 | 0 | 0 | 0 | 0 | 4,000 | 45,280 |
| 2006-11 | 0 | 0 | 51,000 | 836,222 | 50,000 | 194,275 |
| 2006-08 | 356,000 | 4,149,670 | 0 | 0 | 0 | 0 |
| 2006-03 | 0 | 0 | 35,000 | 735,140 | 45,500 | 213,220 |
| 2006-02 | 0 | 0 | 5,000 | 95,133 | 5,000 | 28,849 |
| 2005-12 | 0 | 0 | 20,000 | 357,883 | 0 | 0 |
| 2005-11 | 0 | 0 | 49,568 | 841,603 | 0 | 0 |
| 2005-10 | 600,000 | 7,128,000 | 0 | 0 | 0 | 0 |
| 2005-08 | 188,000 | 1,896,874 | 0 | 0 | 0 | 0 |
| 2005-06 | 0 | 0 | 32,200 | 321,526 | 0 | 0 |
| 2005-04 | 162,200 | 1,258,349 | 0 | 0 | 0 | 0 |
Table 2. Detailed insider stock purchases, sales, and option exercises
for Natus Medical Inc (BABY)
| Trade Date |
Insider Name |
Trade Type |
Shares |
Price ($) |
Value ($) |
| 2008-08-22 | Mince William L (Vice President Operations) | Sale | 2,500 | 23.98 | 59,950 |
| 2008-08-04 | Murphy Steven J (Vice President Finance and CFO) | Sale | 866 | 24.15 | 20,913 |
| 2008-08-04 | Chung Dong Chune Christopher (Vice President Medical Affairs) | Sale | 866 | 24.15 | 20,913 |
| 2008-08-04 | Traverso Kenneth M (VP Marketing and Sales) | Sale | 866 | 24.15 | 20,913 |
| 2008-08-04 | Hawkins James B (President and CEO) | Sale | 2,423 | 24.15 | 58,515 |
| 2008-04-04 | Nierenberg David (10% Owner) | Purchase | 525,000 | 18.27 | 9,591,750 |
| 2007-12-06 | Chung Dong Chune Christopher (VP Med Affairs, R&D, Engr) | Sale | 10,577 | 17.90 | 189,305 |
| 2007-11-20 | Moore William M (Director) | Purchase | 2,000 | 15.39 | 30,780 |
| 2007-11-05 | Hawkins James B (President and CEO) | Purchase | 10,000 | 15.56 | 155,600 |
| 2007-09-25 | Nierenberg David (10% Owner) | Purchase | 8,000 | 14.04 | 112,320 |
| 2007-09-24 | Nierenberg David (10% Owner) | Purchase | 28,431 | 14.07 | 400,024 |
| 2007-08-21 | Ludlum Ken (Director) | Purchase | 4,000 | 15.99 | 63,960 |
| 2007-07-30 | Denver Cara (10% Owner) | Purchase | 25,500 | 14.98 | 381,990 |
| 2007-07-27 | Denver Cara (10% Owner) | Purchase | 12,200 | 15.00 | 183,000 |
| 2007-07-24 | Denver Cara (10% Owner) | Purchase | 26,800 | 14.91 | 399,588 |
| 2007-07-10 | Ludlum Ken (Director) | Option Exercise | 3,500 | 11.32 | 39,620 |
| 2007-05-09 | Denver Cara (10% Owner) | Purchase | 225,000 | 14.86 | 3,343,500 |
| 2007-01-19 | Ludlum Ken (Director) | Option Exercise | 4,000 | 11.32 | 45,280 |
| 2006-11-27 | Mince William L (Vice President Operations) | Sale | 31,000 | 16.09 | 498,728 |
| 2006-11-22 | Mince William L (Vice President Operations) | Option Exercise | 50,000 | 3.89 | 194,275 |
| 2006-11-21 | Mince William L (Vice President Operations) | Sale | 20,000 | 16.87 | 337,494 |
| 2006-08-25 | Ludlum Ken (Director) | Purchase | 3,000 | 13.20 | 39,585 |
| 2006-08-25 | Michael Mark D (Director) | Purchase | 3,000 | 13.20 | 39,585 |
| 2006-08-17 | D3 Family Fund Lp (10% Owner) | Purchase | 350,000 | 11.63 | 4,070,500 |
| 2006-03-23 | Ludlum Ken (Director) | Option Exercise | 10,500 | 6.74 | 70,770 |
| 2006-03-09 | Hawkins James B (President and CEO) | Sale | 12,000 | 21.00 | 252,000 |
| 2006-03-09 | Hawkins James B (President and CEO) | Option Exercise | 12,000 | 4.07 | 48,840 |
| 2006-03-08 | Hawkins James B (President and CEO) | Sale | 23,000 | 21.01 | 483,140 |
| 2006-03-08 | Hawkins James B (President and CEO) | Option Exercise | 23,000 | 4.07 | 93,610 |
| 2006-02-27 | Gunst Robert A (Director) | Sale | 5,000 | 19.03 | 95,133 |
| 2006-02-27 | Gunst Robert A (Director) | Option Exercise | 5,000 | 5.77 | 28,849 |
| 2005-12-13 | Moore William M (Director) | Sale | 10,600 | 18.21 | 193,036 |
| 2005-12-08 | Moore William M (Director) | Sale | 9,400 | 17.54 | 164,847 |
| 2005-11-21 | Moore William M (Director) | Sale | 11,000 | 17.63 | 193,897 |
| 2005-11-18 | Moore William M (Director) | Sale | 9,000 | 17.19 | 154,701 |
| 2005-11-18 | Mince William L (Vice President Opera) | Sale | 4,118 | 17.04 | 70,162 |
| 2005-11-16 | Traverso Kenneth M (VP Marketing and Sal) | Sale | 24,450 | 16.60 | 405,943 |
| 2005-11-11 | Traverso Kenneth M (VP Marketing and Sal) | Sale | 1,000 | 16.90 | 16,900 |
| 2005-10-18 | Nierenberg David (10% Owner) | Purchase | 600,000 | 11.88 | 7,128,000 |
| 2005-08-17 | Michael Mark D (Director) | Purchase | 4,000 | 10.55 | 42,214 |
| 2005-08-16 | Nierenberg David (10% Owner) | Purchase | 28,200 | 10.10 | 284,820 |
| 2005-08-15 | Nierenberg David (10% Owner) | Purchase | 153,800 | 10.07 | 1,548,766 |
| 2005-06-07 | Moore William M (Director) | Sale | 9,700 | 10.10 | 97,921 |
| 2005-06-03 | Ludlum Ken (Director) | Sale | 22,500 | 9.94 | 223,605 |
| 2005-04-13 | Nierenberg David (10% Owner) | Purchase | 49,000 | 7.69 | 376,810 |
| 2005-04-08 | Nierenberg David (10% Owner) | Purchase | 64,300 | 7.73 | 497,039 |
| 2005-04-05 | Nierenberg David (10% Owner) | Purchase | 48,900 | 7.86 | 384,500 |
Insider trading activities including stock purchases, stock sales, and option exercises
listed in the above tables cannot be completely guaranteed as to their accuracy.
For more insider trading information of Natus Medical Inc (symbol BABY,
CIK number 878526) see
the Securities and Exchange Commission (SEC) website.
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