Napco 安全科技公司
US ˙ NasdaqGS ˙ US6304021057

SecurityNSSC / Napco Security Technologies, Inc.
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership60,934 shares
Latest Disclosed Value $ 1,809,130
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series reports 2.64% increase in ownership of NSSC / Napco Security Technologies, Inc.

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 60,934 shares of Napco Security Technologies, Inc. (US:NSSC) valued at $1,809,130 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 59,366 shares of Napco Security Technologies, Inc.. This represents a change in shares of 2.64% during the quarter. The current value of the position is $2,130,253 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.

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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)
2025-08-26 2025-06-30 NP Napco Security Technologies EC US6304021057 60,934 1,568 2.64 1,809 32.43 0.0406
2025-05-28 2025-03-31 NP Napco Security Technologies EC US6304021057 59,366 0 0.00 1,367 -35.29 0.0328
2025-02-25 2024-12-31 NP Napco Security Technologies EC US6304021057 59,366 -10,370 -14.87 2,111 -25.17 0.0461
2024-11-26 2024-09-30 NP Napco Security Technologies EC US6304021057 69,736 6,712 10.65 2,822 -13.84 0.0534
2024-08-26 2024-06-30 NP Napco Security Technologies EC US6304021057 63,024 5,532 9.62 3,274 41.85 0.0667
2024-05-28 2024-03-31 NP Napco Security Technologies EC US6304021057 57,492 0 0.00 2,309 17.22 0.0482
2024-02-26 2023-12-31 NP Napco Security Technologies EC US6304021057 57,492 4,912 9.34 1,969 68.43 0.0420
2023-11-28 2023-09-30 NP Napco Security Technologies EC US6304021057 52,580 -2,257 -4.12 1,170 -38.47 0.0305
2023-08-25 2023-06-30 NP Napco Security Technologies EC US6304021057 54,837 5,521 11.20 1,900 2.54 0.0451
2023-05-26 2023-03-31 NP Napco Security Technologies EC US6304021057 49,316 2,266 4.82 1,853 43.42 0.0493
2023-02-24 2022-12-31 NP Napco Security Technologies EC US6304021057 47,050 1,379 3.02 1,293 -2.71 0.0356
2022-11-25 2022-09-30 NP Napco Security Technologies EC US6304021057 45,671 91 0.20 1,328 41.58 0.0380
2022-08-25 2022-06-30 NP Napco Security Technologies EC US6304021057 45,580 0 0.00 938 0.32 0.0259
2022-05-26 2022-03-31 NP Napco Security Technologies EC US6304021057 45,580 23,857 109.82 935 -13.82 0.0218
2022-02-25 2021-12-31 NP Napco Security Technologies EC US6304021057 21,723 896 4.30 1,086 20.96 0.0235
2021-11-24 2021-09-30 NP Napco Security Technologies EC US6304021057 20,827 0 0.00 897 18.49 0.0198
2021-08-26 2021-06-30 NP Napco Security Technologies EC US6304021057 20,827 0 0.00 757 4.41 0.0162
2021-05-27 2021-03-31 NP Napco Security Technologies EC US6304021057 20,827 1,427 7.36 725 42.72 0.0165
2021-02-25 2020-12-31 NP Napco Security Technologies EC US6304021057 19,400 0 0.00 509 11.65 0.0130
2020-11-25 2020-09-30 NP Napco Security Technologies EC US6304021057 19,400 0 0.00 456 0.44 0.0146
2020-08-27 2020-06-30 NP Napco Security Technologies EC US6304021057 19,400 0 0.00 454 54.08 0.0148
2020-06-01 2020-03-31 NP Napco Security Technologies EC US6304021057 19,400 1,434 7.98 294 -44.32 0.0120
2020-02-27 2019-12-31 NP Napco Security Technologies EC 630402105 17,966 -721 -3.86 528 10.92 0.0159
2019-11-27 2019-09-30 NP Napco Security Technologies EC US6304021057 18,687 18,687 477 0.0158
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.