Discovery Group I, LLC
10% Owner
Discovery Group I, LLC10% Owner
Discovery Group I, LLC insider trades: AtriCure (ATRC) stock buys and sales
10% Owner, AtriCure Last trade Dec 17, 2012 182 Form 4 filings
$0
Sold, last 12 months
0 sales
$0
Bought, last 12 months
0 buys
372
Open-market trades
since 2005
10
Companies
last trade 2012
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Discovery Group I, LLC reports to the SEC
ATRCAtriCure
10% Owner · last filing Dec 19, 2012
-$1.9M
+$3.1M
OPAYOfficial Payments Holdings
10% Owner · last filing Sep 7, 2012
-$8.6M
+$1.2M
CSIICardiovascular Systems
10% Owner · last filing Jul 19, 2012
-$464K
+$1.8M
TESSTessco Technologies
10% Owner · last filing Jul 15, 2011
-$10.9M
+$3.2M
ARTCAtriCure
10% Owner · last filing Jan 24, 2011
+$36K
OPTVOpentv
10% Owner · last filing Oct 27, 2009
-$7.8M
+$349K
and 4 more companies
Open-market buys and sales
372 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Dec 17, 2012 | ATRC | ↓ Sell | 10,000 | $6.53 | $65K | By Pleiades Investment Partners - D | Dec 19, 2012 (2d) |
| Dec 13, 2012 | ATRC | ↓ Sell | 53,234 | $6.21 | $330K | By Pleiades Investment Partners - D, L.P | Dec 13, 2012 (0d) |
| Dec 10, 2012 | ATRC | ↓ Sell | 31,893 | $6.15 | $196K | By Pleiades Investment Partners - D, L.P | Dec 10, 2012 (0d) |
| Dec 4, 2012 | ATRC | ↓ Sell | 32,200 | $6.52 | $210K | By Pleiades Investment Partners - D, L.P | Dec 4, 2012 (0d) |
| Nov 28, 2012 | ATRC | ↓ Sell | 7,445 | $7.14 | $53K | By Pleiades Investment Partners - D, L.P | Nov 28, 2012 (0d) |
| Nov 20, 2012 | ATRC | ↓ Sell | 2,093 | $7.22 | $15K | By Pleiades Investment Partners - D, L.P | Nov 23, 2012 (3d) |
| Sep 7, 2012 | OPAY | ↓ Sell | 1,829,013 | $3.90 | $7.1M | By Discovery Equity Partners, L.P. | Sep 7, 2012 (0d) |
| Sep 7, 2012 | OPAY | ↑ Buy | 299,800 | $3.90 | $1.2M | By Pleiades Investment Partners - D, L.P | Sep 7, 2012 (0d) |
| Sep 6, 2012 | OPAY | ↓ Sell | 223 | $4.02 | $896 | By Pleiades Investment Partners - D, L.P | Sep 7, 2012 (1d) |
| Sep 4, 2012 | OPAY | ↓ Sell | 1,215 | $4.01 | $5K | By Pleiades Investment Partners - D, L.P | Sep 4, 2012 (0d) |
| Aug 31, 2012 | OPAY | ↓ Sell | 3,135 | $4.01 | $13K | By Discovery Equity Partners, L.P. | Sep 4, 2012 (4d) |
| Aug 29, 2012 | OPAY | ↓ Sell | 600 | $4.00 | $2K | By Discovery Equity Partners, L.P. | Aug 29, 2012 (0d) |
| Aug 24, 2012 | OPAY | ↓ Sell | 100 | $4.10 | $410 | By Pleiades Investment Partners - D, L.P | Aug 29, 2012 (5d) |
| Aug 22, 2012 | OPAY | ↓ Sell | 7,477 | $4.01 | $30K | By Discovery Equity Partners, L.P. | Aug 22, 2012 (0d) |
| Aug 20, 2012 | OPAY | ↓ Sell | 838 | $4.01 | $3K | By Pleiades Investment Partners - D, L.P | Aug 22, 2012 (2d) |
| Aug 17, 2012 | OPAY | ↓ Sell | 7,581 | $4.00 | $30K | By Discovery Equity Partners, L.P. | Aug 17, 2012 (0d) |
| Aug 15, 2012 | OPAY | ↓ Sell | 916 | $4.00 | $4K | By Pleiades Investment Partners - D, L.P | Aug 17, 2012 (2d) |
| Aug 14, 2012 | OPAY | ↓ Sell | 13,043 | $4.09 | $53K | By Discovery Equity Partners, L.P. | Aug 14, 2012 (0d) |
| Aug 14, 2012 | OPAY | ↓ Sell | 2,141 | $4.09 | $9K | By Pleiades Investment Partners - D, L.P | Aug 14, 2012 (0d) |
| Aug 9, 2012 | OPAY | ↓ Sell | 47,899 | $4.00 | $192K | By Discovery Equity Partners, L.P. | Aug 9, 2012 (0d) |
| Aug 9, 2012 | OPAY | ↓ Sell | 7,861 | $4.00 | $31K | By Pleiades Investment Partners - D, L.P | Aug 9, 2012 (0d) |
| Jul 26, 2012 | OPAY | ↓ Sell | 1,000 | $4.00 | $4K | By Discovery Equity Partners, L.P. | Aug 1, 2012 (6d) |
| Jul 20, 2012 | OPAY | ↓ Sell | 16,137 | $4.01 | $65K | By Discovery Equity Partners, L.P. | Jul 20, 2012 (0d) |
| Jul 20, 2012 | OPAY | ↓ Sell | 2,621 | $4.01 | $10K | By Pleiades Investment Partners - D, L.P | Jul 20, 2012 (0d) |
| Jul 17, 2012 | CSII | ↓ Sell | 4,730 | $10.25 | $49K | By Discovery Equity Partners, L.P. | Jul 19, 2012 (2d) |
| Jul 17, 2012 | CSII | ↓ Sell | 514 | $10.25 | $5K | By Pleiades Investment Partners - D, L.P | Jul 19, 2012 (2d) |
| Jul 16, 2012 | CSII | ↓ Sell | 12,717 | $10.39 | $132K | By Discovery Equity Partners, L.P. | Jul 16, 2012 (0d) |
| Jul 16, 2012 | CSII | ↓ Sell | 1,429 | $10.38 | $15K | By Pleiades Investment Partners - D, L.P | Jul 16, 2012 (0d) |
| Jul 13, 2012 | OPAY | ↓ Sell | 700 | $4.00 | $3K | By Discovery Equity Partners, L.P. | Jul 13, 2012 (0d) |
| Jul 11, 2012 | CSII | ↓ Sell | 23,164 | $10.28 | $238K | By Discovery Equity Partners, L.P. | Jul 11, 2012 (0d) |
| Jul 11, 2012 | CSII | ↓ Sell | 2,456 | $10.28 | $25K | By Pleiades Investment Partners - D, L.P | Jul 11, 2012 (0d) |
| Jul 9, 2012 | OPAY | ↓ Sell | 1,460 | $4.03 | $6K | By Discovery Equity Partners, L.P. | Jul 10, 2012 (1d) |
| Jul 9, 2012 | OPAY | ↓ Sell | 860 | $4.01 | $3K | By Pleiades Investment Partners - D, L.P | Jul 10, 2012 (1d) |
| Jul 6, 2012 | OPAY | ↓ Sell | 4,340 | $4.00 | $17K | By Discovery Equity Partners, L.P. | Jul 10, 2012 (4d) |
| Jun 29, 2012 | OPAY | ↓ Sell | 28,413 | $4.11 | $117K | By Discovery Equity Partners, L.P. | Jul 3, 2012 (4d) |
| Jun 29, 2012 | OPAY | ↓ Sell | 4,663 | $4.11 | $19K | By Pleiades Investment Partners - D, L.P | Jul 3, 2012 (4d) |
| Jun 25, 2012 | OPAY | ↓ Sell | 6,300 | $4.35 | $27K | By Discovery Equity Partners, L.P. | Jun 26, 2012 (1d) |
| Jun 20, 2012 | OPAY | ↓ Sell | 295 | $4.45 | $1K | By Pleiades Investment Partners - D, L.P | Jun 26, 2012 (6d) |
| Jun 20, 2012 | OPAY | ↓ Sell | 2,171 | $4.28 | $9K | By Discovery Equity Partners, L.P. | Jun 20, 2012 (0d) |
| Jun 20, 2012 | OPAY | ↓ Sell | 1,056 | $4.36 | $5K | By Pleiades Investment Partners - D, L.P | Jun 20, 2012 (0d) |
| Jun 14, 2012 | OPAY | ↑ Buy | 2,150 | $4.40 | $9K | By Pleiades Investment Partners - D, L.P | Jun 14, 2012 (0d) |
| Jun 12, 2012 | OPAY | ↓ Sell | 10,330 | $4.40 | $45K | By Discovery Equity Partners, L.P. | Jun 14, 2012 (2d) |
| Jun 12, 2012 | OPAY | ↓ Sell | 1,710 | $4.40 | $8K | By Pleiades Investme | Jun 14, 2012 (2d) |
| Jun 7, 2012 | OPAY | ↓ Sell | 19,741 | $4.40 | $87K | By Discovery Equity Partners, L.P. | Jun 7, 2012 (0d) |
| Jun 7, 2012 | OPAY | ↓ Sell | 3,268 | $4.40 | $14K | By Pleiades Investment Partners - D, L.P | Jun 7, 2012 (0d) |
| May 18, 2012 | OPAY | ↓ Sell | 111,315 | $4.75 | $529K | By Discovery Equity Partners, L.P. | May 18, 2012 (0d) |
| May 18, 2012 | OPAY | ↓ Sell | 18,422 | $4.75 | $88K | By Pleiades Investment Partners - D, L.P | May 18, 2012 (0d) |
| Jan 13, 2012 | ATRC | ↓ Sell | 6,945 | $11.18 | $78K | By Pleiades Investment Partners - D, L.P | Jan 17, 2012 (4d) |
| Jan 11, 2012 | ATRC | ↓ Sell | 9,109 | $11.22 | $102K | By Discovery Equity Partners, L.P. | Jan 11, 2012 (0d) |
| Jan 11, 2012 | ATRC | ↓ Sell | 4,291 | $11.21 | $48K | By Pleiades Investment Partners - D, L.P | Jan 11, 2012 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other ATRC insiders
Open-market trades in the last 12 months
Salvatore Privitera
Chief Technical Officer
3 sales
Nov 4, 2026
Regina E Groves
Director
1 sale
Sep 11, 2026
Karl S. Dahlquist
Chief Legal Officer
1 sale
Aug 24, 2026
Karen Prange
Director
2 sales
Aug 5, 2026
Maggie Yuen
Director
2 sales
Aug 5, 2026
Justin J Noznesky
Chief Mktg & Strategy Officer
2 sales
Jul 29, 2026
Vinayak Doraiswamy
Chief Scientific Officer
2 sales
Jul 28, 2026
Sven Wehrwein
Director
2 sales
Jul 28, 2026
About Discovery Group I, LLC's insider trades
Discovery Group I, LLC is a 10% owner of AtriCure (ATRC). Since May 10, 2005, it has reported 257 open-market purchases worth $20.5M and 115 sales worth $35.4M on SEC Form 4. There have been no open-market trades in the last 12 months.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every ATRC insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.