NSSC β€” NAPCO SECURITY

Ownership history in EMERALD ADVISERS, LLC  Β·  11 quarters on record

This page tracks every 13F SEC filing in which EMERALD ADVISERS, LLC reported a position in NAPCO SECURITY (NSSC). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price β€” sourced directly from SEC EDGAR 13F filings.

πŸ” Peak position
1.06% (2024 Q2)
πŸ“Š Avg. % of fund
0.54%
πŸ“… First filed
2023 Q1
πŸ“… Last filed
2025 Q3
⏱ Quarters held
11

Position Intelligence

EMERALD ADVISERS, LLC Γ— NSSC AI Analytics

πŸ“ˆ EMERALD ADVISERS, LLC outperformed the S&P 500 by +3.9% annually on this NSSC position. Timing score: 20% (2/10 decisions correct). Average cost basis: $39.79. Maximum drawdown during holding period: –55.2%.

πŸ“ˆ Position Alpha vs SPY
+3.9%
annualised excess return

βœ… Outperformed SPY on this position by 3.9% ann.
10 quarters analyzed

⏱️ Timing Score
20%

⚠️ Poor timing β€” buys often preceded drops, trims preceded rallies.
2 of 10 add/trim decisions correct

πŸ’° Entry Quality
$39.79
+7.2% vs current ($42.66)

Best entry: $29.39 (2025 Q2)  Β·  Worst: $50.58 (2024 Q2)

πŸ›‘οΈ Drawdown Resilience
–55.2%
max drawdown while held

πŸ’ͺ Held through 2 major drawdowns (>20%).

πŸ’ͺ Fund Conviction
64%
buy-side decisions

7 adds Β· 4 trims. Bought during 3 of 5 down-price quarters. πŸ“ˆ More buys than sells across the holding period.

πŸ“‘ Position Trajectory
↓ Shrinking
last 4–5 quarters trend

πŸ“‰ Portfolio weight has been declining in recent quarters. Possible distribution phase.
Currently 0.64% of portfolio

⚠ Based on quarterly 13F SEC filings and end-of-quarter closing prices. Timing score = accuracy of add/trim decisions vs next-quarter price direction. Alpha = mean quarterly excess return Γ— 4 (annualised). Not investment advice.

% of Fund (quarterly)    NSSC price (monthly, adj. close)
πŸ“‹ Quarterly Holdings History 10 quarters  β–Ύ
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 REDUCED 466,165 -53,595 -10.3% 0.64% $20.0M $42.66
2025 Q2 ADDED 519,760 +111,275 +27.2% 0.57% $15.4M $29.39
2025 Q1 REDUCED 408,485 -126,607 -23.7% 0.42% $9.4M $22.68
2024 Q4 ADDED 535,092 +26,835 +5.3% 0.74% $19.0M $34.86
2024 Q3 ADDED 508,257 +19,674 +4.0% 0.80% $20.6M $39.53
2024 Q2 ADDED 488,583 +264,789 +118.3% 1.06% $25.4M $50.58
2024 Q1 ADDED 223,794 +1,351 +0.6% 0.36% $9.0M $39.02
2023 Q4 REDUCED 222,443 -1,745 -0.8% 0.33% $7.6M $33.21
2023 Q3 REDUCED 224,188 -90,870 -28.8% 0.24% $5.0M $21.51
2023 Q2 ADDED 315,058 +151,097 +92.2% 0.48% $10.9M $33.40
1 older quarter hidden  β€”  Sign in free or upgrade to Premium to see full history

🏒 Other funds also holding NSSC

As of 2025 Q4 β€” sorted by position size

Doma Perpetual Capital Management LLC 7.36% Divisadero Street Capital Management, LP 3Y 1.58% Laurus Global Equity Management Inc. 3Y 1.44% Uniplan Investment Counsel, Inc. 3Y 7Y 1.35% Redmond Asset Management, LLC 3Y 7Y 1.33% Copeland Capital Management, LLC 3Y 7Y 1.32% RAFFLES ASSOCIATES LP 3Y 7Y 0.76% Bridge City Capital, LLC 3Y 7Y 0.73% Granite Investment Partners, LLC 3Y 7Y 0.69% ISTHMUS PARTNERS, LLC 3Y 7Y 0.56%
← Back to EMERALD ADVISERS, LLC Holdings