Arnold Blumenthal
Insider
First SEC filing: June 28, 2019 · Latest: June 28, 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 |
|---|---|---|---|---|---|---|---|---|---|
| June 28, 2019 | NSSC | M | 1,200 | $8.70 | $10,440 | 9,206 Direct | +14.99% | Acquired | 731.5% (price as of 2026-10-02) |
| June 28, 2019 | NSSC | M | 800 | $16.20 | $12,960 | 10,006 Direct | +8.69% | Acquired | 346.5% (price as of 2026-10-02) |
| June 28, 2019 | NSSC | M | 1,200 | $8.70 | $10,440 | 1,800 Direct | -40.00% | Disposed | 731.5% (price as of 2026-10-02) |
| June 28, 2019 | NSSC | M | 800 | $16.20 | $12,960 | 3,200 Direct | -20.00% | Disposed | 346.5% (price as of 2026-10-02) |
| Dec. 11, 2018 | NSSC | A | 4,000 | $16.20 | $64,800 | 4,000 Direct | · | Acquired | 346.5% (price as of 2026-10-02) |
| Nov. 28, 2018 | NSSC | M | 1,000 | $4.88 | $4,880 | 7,719 Direct | +14.88% | Acquired | 1382.4% (price as of 2026-10-02) |
| Nov. 28, 2018 | NSSC | F | 299 | $16.33 | $4,883 | 7,420 Direct | -3.87% | Disposed | 343.0% (price as of 2026-10-02) |
| Nov. 28, 2018 | NSSC | M | 800 | $4.37 | $3,496 | 8,220 Direct | +10.78% | Acquired | 1555.4% (price as of 2026-10-02) |
| Nov. 28, 2018 | NSSC | F | 214 | $16.33 | $3,495 | 8,006 Direct | -2.60% | Disposed | 343.0% (price as of 2026-10-02) |
| Nov. 28, 2018 | NSSC | M | 1,000 | $4.88 | $4,880 | 0 Direct | -100.00% | Disposed | 1382.4% (price as of 2026-10-02) |
| Nov. 28, 2018 | NSSC | M | 800 | $4.37 | $3,496 | 0 Direct | -100.00% | Disposed | 1555.4% (price as of 2026-10-02) |
| Dec. 13, 2017 | NSSC | A | 3,000 | · | · | 3,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Nov. 17, 2016 | NSSC | M | 4,000 | $4.88 | $19,520 | 8,575 Direct | +87.43% | Acquired | 1382.4% (price as of 2026-10-02) |
| Nov. 17, 2016 | NSSC | M | 1,200 | $4.37 | $5,244 | 9,775 Direct | +13.99% | Acquired | 1555.4% (price as of 2026-10-02) |
| Nov. 17, 2016 | NSSC | F | 3,056 | $8.10 | $24,754 | 6,719 Direct | -31.26% | Disposed | 793.1% (price as of 2026-10-02) |
| Nov. 17, 2016 | NSSC | M | 4,000 | $4.88 | $19,520 | 1,000 Direct | -80.00% | Disposed | 1382.4% (price as of 2026-10-02) |
| Nov. 17, 2016 | NSSC | M | 1,200 | $4.37 | $5,244 | 800 Direct | -60.00% | Disposed | 1555.4% (price as of 2026-10-02) |
| Oct. 21, 2014 | NSSC | A | 2,000 | · | · | 2,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Oct. 1, 2013 | NSSC | A | 5,000 | · | · | 5,000 Direct | · | Acquired | (price as of 2026-10-02) |
| May 12, 2009 | NSSC | P | 1,500 | $1.33 | $1,995 | 4,575 Direct | +48.78% | Acquired | 5339.1% (price as of 2026-10-02) |
| Feb. 10, 2009 | NSSC | P | 1,500 | $1.25 | $1,875 | 3,075 Direct | +95.24% | Acquired | 5687.2% (price as of 2026-10-02) |
| March 16, 2007 | NSSC | A | 6,000 | · | · | 6,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 14, 2005 | NSSC | S | 500 | $9.10 | $4,550 | 700 Direct | -41.67% | Disposed | 1688.6% (price as of 2026-10-02) |
| June 14, 2005 | NSSC | S | 500 | $9.10 | $4,550 | 940 Direct | -34.72% | Disposed | 1688.6% (price as of 2026-10-02) |
| Nov. 11, 2004 | NSSC | P | 1,000 | $11.87 | $11,870 | 1,200 Direct | +500.00% | Acquired | 1545.5% (price as of 2026-10-02) |
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 |
|---|---|---|---|---|---|---|---|
| June 28, 2019 | NSSC | Non Employee Stock Options (Right to Buy) | Common Stock | $8.70 | Dec. 13, 2027 | 1,200 | Disposed |
| June 28, 2019 | NSSC | Non Employee Stock Options (Right to Buy) | Common Stock | $16.20 | Dec. 11, 2028 | 800 | Disposed |
| Dec. 11, 2018 | NSSC | Non Employee Stock Options (Right to Buy) | Common Stock | $16.20 | Dec. 11, 2028 | 4,000 | Acquired |
| Nov. 28, 2018 | NSSC | Non Employee Stock Options (Right to Buy) | Common Stock | $4.88 | Sept. 9, 2023 | 1,000 | Disposed |
| Nov. 28, 2018 | NSSC | Non Employee Stock Options (Right to Buy) | Common Stock | $4.37 | Oct. 20, 2024 | 800 | Disposed |
| Dec. 13, 2017 | NSSC | Non Employee Stock Options (Right to Buy) | Common Stock | $8.70 | Dec. 13, 2027 | 3,000 | Acquired |
| Nov. 17, 2016 | NSSC | Employee Stock Options (Right to Buy) | Common Stock | $4.88 | Sept. 9, 2023 | 4,000 | Disposed |
| Nov. 17, 2016 | NSSC | Employee Stock Options (Right to Buy) | Common Stock | $4.37 | Oct. 20, 2024 | 1,200 | Disposed |
| Oct. 21, 2014 | NSSC | NAPCO Security Technologies, Inc. Non Employee Stock Options | NAPCO Security Technologies, Inc. Common Stock | $4.37 | Oct. 20, 2024 | 2,000 | Acquired |
| Oct. 1, 2013 | NSSC | NAPCO Security Technologies, Inc. Non-Employee Stock Options | NAPCO Security Technologies, Inc. Common Stock | $4.88 | Sept. 9, 2023 | 5,000 | Acquired |
| March 16, 2007 | NSSC | NAPCO Security Systems, Inc. Non-Employee Stock Options | NAPCO Security Systems, Inc. Common Stock | $5.03 | March 16, 2012 | 6,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).