Richard Nigon insider trades: Northern Technologies International (NTIC) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Richard reports to the SEC






and 1 more company
Open-market buys and sales
28 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jul 20, 2026 | NTIC | ↓ Sell | 12,000 | $8.00 | $96K | Direct | Jul 21, 2026 (1d) |
| Jul 27, 2023 | NTIC | ↓ Sell | 1,847 | $12.17 | $22K | Direct | Jul 27, 2023 (0d) |
| Sep 9, 2022 | CELC | ↑ Buy | 5,000 | $8.99 | $45K | Direct | Sep 13, 2022 (4d) |
| May 25, 2022 | CELC | ↑ Buy | 754 | $5.94 | $4K | Direct | May 26, 2022 (1d) |
| Sep 10, 2019 | TCMD | ↓ Sell | 9,937 | $49.59 | $493K | Direct | Sep 11, 2019 (1d) |
| Sep 5, 2019 | TCMD | ↓ Sell | 1,939 | $49.35 | $96K | Direct | Sep 6, 2019 (1d) |
| May 15, 2019 | TCMD | ↓ Sell | 15,000 | $50.33 | $755K | Direct | May 17, 2019 (2d) |
| Sep 11, 2018 | CELC | ↑ Buy | 9,747 | $22.31 | $217K | Direct | Sep 13, 2018 (2d) |
| May 31, 2018 | CELC | ↑ Buy | 10,000 | $19.04 | $190K | Direct | Jun 4, 2018 (4d) |
| Nov 28, 2017 | CELC | ↑ Buy | 7,500 | $17.48 | $131K | Direct | Nov 29, 2017 (1d) |
| Nov 21, 2017 | CELC | ↑ Buy | 8,500 | $17.31 | $147K | Direct | Nov 22, 2017 (1d) |
| Mar 13, 2017 | TCMD | ↑ Buy | 20,000 | $20.11 | $402K | Direct | Mar 15, 2017 (2d) |
| Sep 14, 2016 | TCMD | ↑ Buy | 9,000 | $17.14 | $154K | By Rollover IRA | Sep 15, 2016 (1d) |
| Sep 14, 2016 | TCMD | ↑ Buy | 5,175 | $16.59 | $86K | By IRA | Sep 15, 2016 (1d) |
| Sep 14, 2016 | TCMD | ↑ Buy | 4,575 | $16.66 | $76K | By SEP IRA | Sep 15, 2016 (1d) |
| Nov 4, 2015 | VASC | ↓ Sell | 8,000 | $32.40 | $259K | Direct | Nov 6, 2015 (2d) |
| May 28, 2015 | VASC | ↓ Sell | 6,000 | $32.68 | $196K | Direct | May 29, 2015 (1d) |
| Nov 26, 2014 | VASC | ↑ Buy | 3,000 | $25.80 | $77K | Direct | Dec 1, 2014 (5d) |
| Feb 25, 2014 | VASC | ↑ Buy | 1,000 | $25.66 | $26K | Direct | Feb 27, 2014 (2d) |
| Feb 20, 2014 | VASC | ↓ Sell | 8,000 | $25.18 | $201K | Direct | Feb 24, 2014 (4d) |
| May 1, 2013 | VASC | ↑ Buy | 3,000 | $15.57 | $47K | Direct | May 2, 2013 (1d) |
| Apr 22, 2013 | NTIC | ↑ Buy | 2,000 | $10.99 | $22K | Direct | Apr 23, 2013 (1d) |
| Feb 19, 2013 | VASC | ↓ Sell | 4,000 | $15.36 | $61K | Direct | Feb 21, 2013 (2d) |
| May 23, 2012 | VASC | ↑ Buy | 4,500 | $10.82 | $49K | Direct | May 24, 2012 (1d) |
| Apr 20, 2012 | NTIC | ↑ Buy | 3,000 | $13.00 | $39K | Direct | Apr 23, 2012 (3d) |
| Aug 27, 2010 | NTIC | ↑ Buy | 2,000 | $10.55 | $21K | Direct | Aug 27, 2010 (0d) |
| Aug 18, 2010 | VASC | ↑ Buy | 2,000 | $11.85 | $24K | Direct | Aug 20, 2010 (2d) |
| Feb 28, 2008 | VASC | ↑ Buy | 5,000 | $6.20 | $31K | Direct | Mar 3, 2008 (4d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
About Richard Nigon's insider trades
Richard Nigon is a director at Northern Technologies International (NTIC). Since Feb 28, 2008, Richard has reported 19 open-market purchases worth $1.8M and 9 sales worth $2.2M on SEC Form 4. In the last 12 months: 1 sale ($96K).
Their filings also include grants and awards (65 filings), option exercises (18 filings), shares withheld for taxes (10 filings), gifts (5 filings). These aren't open-market trades and aren't counted above.
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 NTIC insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.