$35.59+0.06% vs prior closeFinazon · prior-day close, indicative (IEX-derived, not the official close) · Sep 30, 2026
Price · Chart
31 sessions
$40$3418 Aug30 Sep
The line runs $37.83 on 18 August through $35.59 on 30 September, on a scale from $34 to $40. Days the market did not trade hold the previous close, flat.
NSSC has no Form 4 filing in the last 90 days, so there is no summary for that window. The most recent filings we hold are below, the newest dated 17 November 2025.
DateInsiderTypeSharesValue
17 Nov 2025Spinelli Stephen MSenior Vice president of SalesSell19,000$765K
Compensation mechanics
Share grants, option exercises, tax withholding and transfers. They reach the same Form 4 as a trade, but they are not the insider buying or selling on the open market, so no purchase or sale value applies to them.
DateInsiderTypeSharesValue
17 Sep 2025CARRIERI MICHAELExecutive VP of EngineeringTax withheld6,576$279K
17 Sep 2025CARRIERI MICHAELExecutive VP of EngineeringOption exercise12,000$279K
7 of the 45 institutional funds we track reported a NSSC position for the quarter ended 30 Jun 2026 — a combined $78.3M; the latest of those filings landed 02 Sep 2026.