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David B Kunin
Insider
First SEC filing: May 8, 2019 · Latest: May 8, 2019
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| March 31, 2026 | NSYS | A | 10,800 | · | · | 10,800 Direct | · | Acquired | (price as of 2026-10-02) |
| May 19, 2025 | NSYS | A | 9,284 | $8.73 | $81,049 | 81,162 Direct | +12.92% | Acquired | 32.6% (price as of 2026-10-02) |
| May 19, 2025 | NSYS | A | 9,222 | · | · | 9,222 Direct | · | Acquired | (price as of 2026-10-02) |
| May 20, 2024 | NSYS | A | 1,981 | $11.06 | $21,910 | 71,878 Direct | +2.83% | Acquired | 4.7% (price as of 2026-10-02) |
| May 12, 2023 | NSYS | A | 3,000 | $9.39 | $28,170 | 69,897 Direct | +4.48% | Acquired | 23.3% (price as of 2026-10-02) |
| March 22, 2023 | NSYS | P 10b5-1 | 21 | $11.85 | $249 | 66,897 Direct | +0.03% | Acquired | -2.3% (price as of 2026-10-02) |
| March 21, 2023 | NSYS | P 10b5-1 | 302 | $12.18 | $3,678 | 66,876 Direct | +0.45% | Acquired | -4.9% (price as of 2026-10-02) |
| March 20, 2023 | NSYS | P 10b5-1 | 1,632 | $11.89 | $19,404 | 66,574 Direct | +2.51% | Acquired | -2.6% (price as of 2026-10-02) |
| March 15, 2023 | NSYS | P 10b5-1 | 445 | $12.00 | $5,340 | 64,942 Direct | +0.69% | Acquired | -3.5% (price as of 2026-10-02) |
| April 12, 2022 | NSYS | P 10b5-1 | 1 | $10.00 | $10 | 64,497 Direct | 0.00% | Acquired | 15.8% (price as of 2026-10-02) |
| April 11, 2022 | NSYS | P 10b5-1 | 585 | $10.02 | $5,862 | 64,496 Direct | +0.92% | Acquired | 15.6% (price as of 2026-10-02) |
| April 8, 2022 | NSYS | P 10b5-1 | 296 | $10.00 | $2,960 | 63,911 Direct | +0.47% | Acquired | 15.8% (price as of 2026-10-02) |
| March 31, 2022 | NSYS | P 10b5-1 | 13 | $10.10 | $131 | 63,615 Direct | +0.02% | Acquired | 14.7% (price as of 2026-10-02) |
| March 30, 2022 | NSYS | P | 1,587 | $10.13 | $16,076 | 63,602 Direct | +2.56% | Acquired | 14.3% (price as of 2026-10-02) |
| March 29, 2022 | NSYS | P | 1,587 | $10.17 | $16,140 | 62,015 Direct | +2.63% | Acquired | 13.9% (price as of 2026-10-02) |
| March 28, 2022 | NSYS | P | 1,578 | $9.99 | $15,764 | 60,428 Direct | +2.68% | Acquired | 15.9% (price as of 2026-10-02) |
| March 25, 2022 | NSYS | P 10b5-1 | 744 | $9.93 | $7,388 | 58,850 Direct | +1.28% | Acquired | 16.6% (price as of 2026-10-02) |
| March 24, 2022 | NSYS | P 10b5-1 | 744 | $9.66 | $7,187 | 58,106 Direct | +1.30% | Acquired | 19.9% (price as of 2026-10-02) |
| March 23, 2022 | NSYS | P 10b5-1 | 744 | $10.15 | $7,552 | 57,362 Direct | +1.31% | Acquired | 14.1% (price as of 2026-10-02) |
| March 17, 2022 | NSYS | A | 3,000 | $11.80 | $35,400 | 56,618 Direct | +5.60% | Acquired | -1.9% (price as of 2026-10-02) |
| Feb. 25, 2022 | NSYS | P 10b5-1 | 845 | $10.15 | $8,577 | 53,618 Direct | +1.60% | Acquired | 14.1% (price as of 2026-10-02) |
| Feb. 24, 2022 | NSYS | P 10b5-1 | 845 | $9.95 | $8,408 | 52,773 Direct | +1.63% | Acquired | 16.4% (price as of 2026-10-02) |
| Feb. 23, 2022 | NSYS | P 10b5-1 | 767 | $10.13 | $7,770 | 51,928 Direct | +1.50% | Acquired | 14.3% (price as of 2026-10-02) |
| Feb. 22, 2022 | NSYS | P 10b5-1 | 845 | $9.95 | $8,408 | 51,161 Direct | +1.68% | Acquired | 16.4% (price as of 2026-10-02) |
| Feb. 17, 2022 | NSYS | P 10b5-1 | 838 | $10.15 | $8,506 | 50,316 Direct | +1.69% | Acquired | 14.1% (price as of 2026-10-02) |
| Feb. 15, 2022 | NSYS | P 10b5-1 | 838 | $9.85 | $8,254 | 49,478 Direct | +1.72% | Acquired | 17.6% (price as of 2026-10-02) |
| Feb. 14, 2022 | NSYS | P 10b5-1 | 838 | $10.05 | $8,422 | 48,640 Direct | +1.75% | Acquired | 15.2% (price as of 2026-10-02) |
| Feb. 11, 2022 | NSYS | P 10b5-1 | 767 | $10.18 | $7,808 | 47,802 Direct | +1.63% | Acquired | 13.8% (price as of 2026-10-02) |
| Feb. 8, 2022 | NSYS | P 10b5-1 | 767 | $10.00 | $7,670 | 47,035 Direct | +1.66% | Acquired | 15.8% (price as of 2026-10-02) |
| Feb. 7, 2022 | NSYS | P 10b5-1 | 767 | $10.18 | $7,808 | 46,268 Direct | +1.69% | Acquired | 13.8% (price as of 2026-10-02) |
| Feb. 3, 2022 | NSYS | P 10b5-1 | 995 | $10.16 | $10,109 | 45,501 Direct | +2.24% | Acquired | 14.0% (price as of 2026-10-02) |
| Feb. 2, 2022 | NSYS | P 10b5-1 | 995 | $10.18 | $10,129 | 44,506 Direct | +2.29% | Acquired | 13.8% (price as of 2026-10-02) |
| Feb. 1, 2022 | NSYS | P 10b5-1 | 995 | $10.17 | $10,119 | 43,511 Direct | +2.34% | Acquired | 13.9% (price as of 2026-10-02) |
| Jan. 31, 2022 | NSYS | P 10b5-1 | 995 | $10.05 | $10,000 | 42,516 Direct | +2.40% | Acquired | 15.2% (price as of 2026-10-02) |
| Jan. 28, 2022 | NSYS | P 10b5-1 | 964 | $10.00 | $9,640 | 41,521 Direct | +2.38% | Acquired | 15.8% (price as of 2026-10-02) |
| Jan. 27, 2022 | NSYS | P 10b5-1 | 678 | $10.10 | $6,848 | 40,557 Direct | +1.70% | Acquired | 14.7% (price as of 2026-10-02) |
| Jan. 26, 2022 | NSYS | P 10b5-1 | 964 | $10.15 | $9,785 | 39,879 Direct | +2.48% | Acquired | 14.1% (price as of 2026-10-02) |
| Jan. 25, 2022 | NSYS | P 10b5-1 | 964 | $10.04 | $9,679 | 38,915 Direct | +2.54% | Acquired | 15.3% (price as of 2026-10-02) |
| Jan. 24, 2022 | NSYS | P 10b5-1 | 100 | $10.10 | $1,010 | 37,951 Direct | +0.26% | Acquired | 14.7% (price as of 2026-10-02) |
| Jan. 20, 2022 | NSYS | P 10b5-1 | 60 | $10.05 | $603 | 37,851 Direct | +0.16% | Acquired | 15.2% (price as of 2026-10-02) |
| Jan. 19, 2022 | NSYS | P 10b5-1 | 852 | $10.16 | $8,656 | 37,791 Direct | +2.31% | Acquired | 14.0% (price as of 2026-10-02) |
| May 8, 2019 | NSYS | P 10b5-1 | 510 | $4.00 | $2,040 | 36,939 Direct | +1.40% | Acquired | 189.5% (price as of 2026-10-02) |
| May 7, 2019 | NSYS | P 10b5-1 | 1,281 | $4.00 | $5,124 | 36,429 Direct | +3.64% | Acquired | 189.5% (price as of 2026-10-02) |
| May 6, 2019 | NSYS | P 10b5-1 | 1,318 | $4.00 | $5,272 | 35,148 Direct | +3.90% | Acquired | 189.5% (price as of 2026-10-02) |
| May 2, 2019 | NSYS | P 10b5-1 | 100 | $3.95 | $395 | 33,830 Direct | +0.30% | Acquired | 193.2% (price as of 2026-10-02) |
| Dec. 21, 2018 | NSYS | P 10b5-1 | 10 | $4.00 | $40 | 33,730 Direct | +0.03% | Acquired | 189.5% (price as of 2026-10-02) |
| Dec. 20, 2018 | NSYS | P 10b5-1 | 1,750 | $3.91 | $6,842 | 33,720 Direct | +5.47% | Acquired | 196.2% (price as of 2026-10-02) |
| Sept. 13, 2018 | NSYS | P 10b5-1 | 490 | $4.00 | $1,960 | 31,970 Direct | +1.56% | Acquired | 189.5% (price as of 2026-10-02) |
| Aug. 23, 2018 | NSYS | P 10b5-1 | 830 | $4.00 | $3,320 | 31,480 Direct | +2.71% | Acquired | 189.5% (price as of 2026-10-02) |
| May 9, 2018 | NSYS | A | 3,000 | · | · | 3,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Aug. 21, 2017 | NSYS | P | 750 | $3.40 | $2,550 | 30,650 Direct | +2.51% | Acquired | 240.6% (price as of 2026-10-02) |
| Nov. 30, 2016 | NSYS | P | 5,000 | $3.96 | $19,800 | 29,900 Direct | +20.08% | Acquired | 192.4% (price as of 2026-10-02) |
| June 3, 2016 | NSYS | P | 11,333 | $3.78 | $42,839 | 24,900 Direct | +83.53% | Acquired | 206.3% (price as of 2026-10-02) |
| June 2, 2016 | NSYS | P | 1,067 | $3.75 | $4,001 | 13,567 Direct | +8.54% | Acquired | 208.8% (price as of 2026-10-02) |
| March 16, 2016 | NSYS | P | 12,500 | $4.00 | $50,000 | 12,500 Direct | · | Acquired | 189.5% (price as of 2026-10-02) |
| April 28, 2011 | RGS | A | 7,000 | · | · | 31,510 Direct | +28.56% | Acquired | (price as of 2026-10-02) |
| Oct. 26, 2010 | RGS | M | 1,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Oct. 26, 2010 | RGS | M | 1,000 | $15.12 | $15,120 | 24,258 Direct | +4.30% | Acquired | -90.4% (price as of 2026-10-02) |
| April 30, 2010 | RGS | D | 2,400 | $19.12 | $45,888 | 26,715 Direct | -8.24% | Disposed | -92.4% (price as of 2026-10-02) |
| April 30, 2010 | RGS | A | 5,000 | · | · | 22,115 Direct | +29.21% | Acquired | (price as of 2026-10-02) |
| April 29, 2010 | RGS | A | 7,000 | · | · | 29,115 Direct | +31.65% | Acquired | (price as of 2026-10-02) |
| April 30, 2009 | RGS | A | 5,000 | · | · | 5,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 30, 2009 | RGS | S | 1,257 | $11.75 | $14,770 | 23,258 Direct | -5.13% | Disposed | -87.6% (price as of 2026-10-02) |
| April 24, 2008 | RGS | A | 2,000 | · | · | 17,115 Direct | +13.23% | Acquired | (price as of 2026-10-02) |
| April 24, 2008 | RGS | A | 2,000 | · | · | 2,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 6, 2007 | RGS | M | 4,000 | $15.12 | $60,480 | 15,115 Direct | +35.99% | Acquired | -90.4% (price as of 2026-10-02) |
| Dec. 6, 2007 | RGS | M | 4,000 | · | · | 1,000 Direct | -80.00% | Disposed | (price as of 2026-10-02) |
| Dec. 5, 2007 | RGS | S | 2,200 | $28.20 | $62,040 | 24,515 Direct | -8.24% | Disposed | -94.8% (price as of 2026-10-02) |
| April 26, 2007 | RGS | A | 1,500 | · | · | 1,500 Direct | · | Acquired | (price as of 2026-10-02) |
| April 26, 2007 | RGS | A | 1,500 | · | · | 11,115 Direct | +15.60% | Acquired | (price as of 2026-10-02) |
| Dec. 20, 2006 | RGS | S | 2,000 | $39.68 | $79,360 | 9,615 Direct | -17.22% | Disposed | -96.3% (price as of 2026-10-02) |
| Dec. 12, 2006 | RGS | G | 500 | · | · | 11,615 Direct | -4.13% | Disposed | (price as of 2026-10-02) |
| Oct. 31, 2006 | RGS | G | 500 | · | · | 12,115 Direct | -3.96% | Disposed | (price as of 2026-10-02) |
| June 19, 2006 | RGS | M | 5,000 | · | · | 5,000 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| June 19, 2006 | RGS | S | 5,000 | $35.10 | $175,500 | 12,615 Direct | -28.38% | Disposed | -95.9% (price as of 2026-10-02) |
| June 19, 2006 | RGS | M | 5,000 | $15.12 | $75,600 | 17,615 Direct | +39.64% | Acquired | -90.4% (price as of 2026-10-02) |
| May 8, 2006 | RGS | G | 500 | · | · | 12,615 Direct | -3.81% | Disposed | (price as of 2026-10-02) |
| May 3, 2006 | RGS | S | 1,500 | $35.00 | $52,500 | 13,115 Direct | -10.26% | Disposed | -95.9% (price as of 2026-10-02) |
| May 2, 2006 | RGS | M | 5,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 2, 2006 | RGS | S | 5,000 | $34.90 | $174,500 | 14,615 Direct | -25.49% | Disposed | -95.8% (price as of 2026-10-02) |
| May 2, 2006 | RGS | M | 5,000 | $16.50 | $82,500 | 19,615 Direct | +34.21% | Acquired | -91.2% (price as of 2026-10-02) |
| April 27, 2006 | RGS | A | 1,250 | · | · | 1,250 Direct | · | Acquired | (price as of 2026-10-02) |
| April 27, 2006 | RGS | A | 1,250 | · | · | 14,615 Direct | +9.35% | Acquired | (price as of 2026-10-02) |
| Sept. 16, 2005 | RGS | M | 15,000 | · | · | 15,000 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| Sept. 16, 2005 | RGS | S | 10,000 | $42.03 | $420,300 | 13,365 Direct | -42.80% | Disposed | -96.5% (price as of 2026-10-02) |
| Sept. 16, 2005 | RGS | M | 15,000 | $16.50 | $247,500 | 23,365 Direct | +179.32% | Acquired | -91.2% (price as of 2026-10-02) |
| June 20, 2005 | RGS | G | 500 | · | · | 8,365 Direct | -5.64% | Disposed | (price as of 2026-10-02) |
| June 17, 2005 | RGS | M | 1,000 | $15.12 | $15,120 | 9,865 Direct | +11.28% | Acquired | -90.4% (price as of 2026-10-02) |
| June 17, 2005 | RGS | M | 10,000 | $16.50 | $165,000 | 19,865 Direct | +101.37% | Acquired | -91.2% (price as of 2026-10-02) |
| June 17, 2005 | RGS | S | 11,000 | $38.91 | $428,010 | 8,865 Direct | -55.37% | Disposed | -96.3% (price as of 2026-10-02) |
| June 17, 2005 | RGS | M | 1,000 | · | · | 10,000 Direct | -9.09% | Disposed | (price as of 2026-10-02) |
| June 17, 2005 | RGS | M | 10,000 | · | · | 20,000 Direct | -33.33% | Disposed | (price as of 2026-10-02) |
| June 16, 2005 | RGS | M | 4,000 | · | · | 11,000 Direct | -26.67% | Disposed | (price as of 2026-10-02) |
| June 16, 2005 | RGS | S | 4,000 | $39.11 | $156,440 | 8,865 Direct | -31.09% | Disposed | -96.3% (price as of 2026-10-02) |
| June 16, 2005 | RGS | M | 4,000 | $15.12 | $60,480 | 12,865 Direct | +45.12% | Acquired | -90.4% (price as of 2026-10-02) |
| May 3, 2005 | RGS | A | 1,250 | · | · | 1,250 Direct | · | Acquired | (price as of 2026-10-02) |
| May 3, 2005 | RGS | A | 1,250 | · | · | 8,865 Direct | +16.41% | Acquired | (price as of 2026-10-02) |
| March 17, 2005 | RGS | M | 5,000 | $15.12 | $75,600 | 12,615 Direct | +65.66% | Acquired | -90.4% (price as of 2026-10-02) |
| March 17, 2005 | RGS | S | 5,000 | $40.43 | $202,150 | 7,615 Direct | -39.64% | Disposed | -96.4% (price as of 2026-10-02) |
| March 17, 2005 | RGS | M | 5,000 | · | · | 15,000 Direct | -25.00% | Disposed | (price as of 2026-10-02) |
Showing latest 100 of 117 transactions
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| March 31, 2026 | NSYS | Stock Options | Common Stock | $12.19 | March 31, 2036 | 10,800 | Acquired |
| May 19, 2025 | NSYS | Stock Options | Common Stock | $8.73 | May 19, 2035 | 9,222 | Acquired |
| May 9, 2018 | NSYS | Common Stock | Common Stock | $3.29 | May 9, 2028 | 3,000 | Acquired |
| Oct. 26, 2010 | RGS | Director Stock Option (Right to Buy) | Common Stock | $15.12 | Oct. 31, 2010 | 1,000 | Disposed |
| April 30, 2009 | RGS | Stock Appreciation Right [F1] | Common Stock | $19.14 | April 30, 2019 | 5,000 | Acquired |
| April 24, 2008 | RGS | Stock Appreciation Right [F1] | Common Stock | $28.57 | April 24, 2018 | 2,000 | Acquired |
| Dec. 6, 2007 | RGS | Director Stock Option (Right to Buy) | Common Stock | $15.12 | Oct. 31, 2010 | 4,000 | Disposed |
| April 26, 2007 | RGS | Stock Appreciation Right [F1] | Common Stock | $39.04 | April 26, 2017 | 1,500 | Acquired |
| June 19, 2006 | RGS | Director Stock Option (Right to Buy) | Common Stock | $15.12 | Oct. 31, 2010 | 5,000 | Disposed |
| May 2, 2006 | RGS | Director Stock Option (right to buy) | Common Stock | $16.50 | Feb. 15, 2010 | 5,000 | Disposed |
| April 27, 2006 | RGS | Stock Appreciation Right [F1] | Common Stock | $35.33 | April 27, 2016 | 1,250 | Acquired |
| Sept. 16, 2005 | RGS | Director Stock Option (right to buy) | Common Stock | $16.50 | Feb. 15, 2010 | 15,000 | Disposed |
| June 17, 2005 | RGS | Director Stock Option (right to buy) | Common Stock | $15.12 | Nov. 1, 2010 | 1,000 | Disposed |
| June 17, 2005 | RGS | Director Stock Option (right to buy) | Common Stock | $16.50 | Feb. 15, 2010 | 10,000 | Disposed |
| June 16, 2005 | RGS | Director Stock Option (right to buy) | Common Stock | $15.12 | Nov. 1, 2010 | 4,000 | Disposed |
| May 3, 2005 | RGS | Stock Appreciation Right [F1] | Common Stock | $35.49 | May 3, 2015 | 1,250 | Acquired |
| March 17, 2005 | RGS | Director Stock Option (right to buy) | Common Stock | $15.12 | Nov. 1, 2010 | 5,000 | Disposed |
| Jan. 10, 2005 | RGS | Stock Appreciation Right [F1] | Common Stock | $42.79 | May 26, 2014 | 1,250 | Acquired |
| Nov. 3, 2003 | RGS | Director Sock Option (right to buy) | Common Stock | $15.12 | Nov. 1, 2010 | 10,000 | Disposed |
| Aug. 28, 2003 | RGS | Director Stock option (right to buy) | Common Stock | $20.31 | July 14, 2005 | 1,687 | Disposed |
| Aug. 28, 2003 | RGS | Director Stock option (right to buy) | Common Stock | $20.31 | July 14, 2005 | 1,687 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).