As of April 28, 2026, the three largest insider holders of NSSC are Richard Soloway (Ceo, Chairman Of Board, Secy, 1.10Mn shares), Kevin S Buchel (President Coo, 79.18K shares), Michael Carrieri (Executive Vp Of Engineering, 26.61K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Richard Soloway | Ceo, Chairman Of Board, Secy | 1,096,958 | 0 | 04 Mar, 2026 |
| Kevin S Buchel | President Coo | 79,179 | 0 | 20 Feb, 2026 |
| Michael Carrieri | Executive Vp Of Engineering | 26,610 | 0 | 27 Feb, 2026 |
| Michael Carrieri | Senior Vice President | 15,837 | 0 | 12 Feb, 2024 |
| Stephen M Spinelli | Senior Vice President Of Sales | 11,688 | 0 | 19 Mar, 2026 |
| Paul Stephen Beeber | - | 2,681 | 0 | 16 Sep, 2024 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 17 Mar, 2026 | Stephen M Spinelli | Common Stock | A | 13,972 | $10.02 | 14,900 | D | M |
| 17 Mar, 2026 | Stephen M Spinelli | Common Stock | D | 3,212 | $43.59 | 11,688 | D | F |
| 17 Mar, 2026 | Stephen M Spinelli | Employee Stock Option (Right to Buy) | D | 13,972 | $10.02 | 9,980 | D | M |
| 02 Mar, 2026 | Richard Soloway | Common Stock | D | 129,682 | $44.99 | 1,152,276 | D | S |
| 03 Mar, 2026 | Richard Soloway | Common Stock | D | 55,318 | $43.22 | 1,096,958 | D | S |
| 26 Feb, 2026 | Michael Carrieri | Common Stock | A | 10,000 | $22.50 | 33,261 | D | M |
| 26 Feb, 2026 | Michael Carrieri | Common Stock | D | 6,651 | $47.23 | 26,610 | D | F |
| 26 Feb, 2026 | Michael Carrieri | Employee Stock Option (Right to Buy) | D | 10,000 | $22.50 | 0 | D | M |
| 19 Feb, 2026 | Kevin S Buchel | Common Stock | A | 50,000 | $22.50 | 112,739 | D | M |
| 19 Feb, 2026 | Kevin S Buchel | Common Stock | A | 50,000 | $22.50 | 112,739 | D | M |
| 19 Feb, 2026 | Kevin S Buchel | Common Stock | A | 33,560 | $44.98 | 79,179 | D | F |
| 19 Feb, 2026 | Kevin S Buchel | Common Stock | D | 33,560 | $44.98 | 79,179 | D | F |
| 19 Feb, 2026 | Kevin S Buchel | Employee Stock Option (Right to Buy) | D | 50,000 | $22.50 | 47,584 | D | M |
| 19 Feb, 2026 | Kevin S Buchel | Employee Stock Option (Right to Buy) | D | 50,000 | $22.50 | 47,584 | D | M |
| 10 Feb, 2026 | Richard Soloway | Common Stock | A | 100,000 | $22.50 | 1,356,010 | D | M |
| 10 Feb, 2026 | Richard Soloway | Common Stock | D | 74,878 | $42.63 | 1,281,132 | D | F |
| 10 Feb, 2026 | Richard Soloway | Common Stock | A | 8,000 | $26.94 | 1,289,132 | D | M |
| 10 Feb, 2026 | Richard Soloway | Common Stock | D | 7,174 | $42.63 | 1,281,958 | D | F |
| 10 Feb, 2026 | Richard Soloway | Employee Stock Option (Right to Buy) | D | 100,000 | $22.50 | 0 | D | M |
| 10 Feb, 2026 | Richard Soloway | Employee Stock Option (Right to Buy) | D | 8,000 | $26.94 | 2,000 | D | M |