Napco Security Technologies, Inc.
US ˙ NasdaqGS ˙ US6304021057

SecurityNSSC / Napco Security Technologies, Inc.
InstitutionEngineers Gate Manager LP
Latest Disclosed Ownership41,182 shares
Latest Disclosed Value $ 1,622,159
Engineers Gate Manager LP reports 39.06% decrease in ownership of NSSC / Napco Security Technologies, Inc.

On May 15, 2026 - Engineers Gate Manager LP filed a 13F-HR form disclosing ownership of 41,182 shares of Napco Security Technologies, Inc. (US:NSSC) valued at $1,622,159 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 67,582 shares of Napco Security Technologies, Inc.. This represents a change in shares of -39.06% during the quarter. The current value of the position is $1,482,140 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F NAPCO SEC TECHNOLOGIES COM 630402105 41,182 -26,400 -39.06 1,622 -42.44 0.0203
2026-02-17 2025-12-31 13F NAPCO SEC TECHNOLOGIES COM 630402105 67,582 1,560 2.36 2,818 -0.60 0.0334
2025-11-14 2025-09-30 13F NAPCO SEC TECHNOLOGIES COM 630402105 66,022 12,667 23.74 2,836 78.98 0.0325
2025-08-14 2025-06-30 13F NAPCO SEC TECHNOLOGIES COM 630402105 53,355 23,998 81.75 1,584 134.67 0.0197
2025-05-15 2025-03-31 13F NAPCO SEC TECHNOLOGIES COM 630402105 29,357 29,357 676 0.0114
2025-02-14 2024-12-31 13F NAPCO SEC TECHNOLOGIES COM 630402105 0 -15,967 -100.00 0 -100.00
2024-11-14 2024-09-30 13F NAPCO SEC TECHNOLOGIES COM 630402105 15,967 10,532 193.78 646 129.08 0.0126
2024-08-14 2024-06-30 13F NAPCO SEC TECHNOLOGIES COM 630402105 5,435 -5,065 -48.24 282 -33.02 0.0064
2024-05-15 2024-03-31 13F NAPCO SEC TECHNOLOGIES COM 630402105 10,500 10,500 422 0.0111
2023-11-14 2023-09-30 13F NAPCO SEC TECHNOLOGIES COM 630402105 0 -12,924 -100.00 0 -100.00
2023-08-14 2023-06-30 13F NAPCO SEC TECHNOLOGIES COM 630402105 12,924 12,924 448 0.0169
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.