Arnold Blumenthal
CIK 1287256 · View on SEC EDGAR ↗
Insider
First SEC filing: June 28, 2019 · Latest: June 28, 2019
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 20 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
20 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| May 12, 2009 | NSSC | P | 1,500 | $1.33 | $1,995 | 4,575 Direct | +48.78% | Acquired | 5644.4% (price as of 2026-08-19) |
| Feb. 10, 2009 | NSSC | P | 1,500 | $1.25 | $1,875 | 3,075 Direct | +95.24% | Acquired | 6012.0% (price as of 2026-08-19) |
| June 14, 2005 | NSSC | S | 500 | $9.10 | $4,550 | 700 Direct | -41.67% | Disposed | 1789.0% (price as of 2026-08-19) |
| June 14, 2005 | NSSC | S | 500 | $9.10 | $4,550 | 940 Direct | -34.72% | Disposed | 1789.0% (price as of 2026-08-19) |
| Nov. 11, 2004 | NSSC | P | 1,000 | $11.87 | $11,870 | 1,200 Direct | +500.00% | Acquired | 1637.8% (price as of 2026-08-19) |
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 (3,000) | $8.70 | Dec. 13, 2027 | 1,200 | Disposed |
| June 28, 2019 | NSSC | Non Employee Stock Options (Right to Buy) | Common Stock (4,000) | $16.20 | Dec. 11, 2028 | 800 | Disposed |
| Dec. 11, 2018 | NSSC | Non Employee Stock Options (Right to Buy) | Common Stock (4,000) | $16.20 | Dec. 11, 2028 | 4,000 | Acquired |
| Nov. 28, 2018 | NSSC | Non Employee Stock Options (Right to Buy) | Common Stock (5,000) | $4.88 | Sept. 9, 2023 | 1,000 | Disposed |
| Nov. 28, 2018 | NSSC | Non Employee Stock Options (Right to Buy) | Common Stock (2,000) | $4.37 | Oct. 20, 2024 | 800 | Disposed |
| Dec. 13, 2017 | NSSC | Non Employee Stock Options (Right to Buy) | Common Stock (3,000) | $8.70 | Dec. 13, 2027 | 3,000 | Acquired |
| Nov. 17, 2016 | NSSC | Employee Stock Options (Right to Buy) | Common Stock (5,000) | $4.88 | Sept. 9, 2023 | 4,000 | Disposed |
| Nov. 17, 2016 | NSSC | Employee Stock Options (Right to Buy) | Common Stock (2,000) | $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 (2,000) | $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 (5,000) | $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 (6,000) | $5.03 | March 16, 2012 | 6,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).