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buyNotable cluster of 3

Matthew C. Winger bought $112k of NNUP

Chief Executive Officer at NOCOPI TECHNOLOGIES INC/MD/. 101,416 shares at an average of $1.10, traded Jun 6, 2025, filed Jun 10, 2025.

Conviction score
64
Value
$112k
101,416 shares
Holdings after
235,916
+75% from before
From 52-week low
+21%
low $1.25, close $1.51
From 52-week high
-29%
high $2.14, as of Jun 6, 2025

Score components

  • Role
    CEO
    +25
  • Trade size
    $112k at market
    +10
  • Relative to holdings
    Holdings up 75%
    +10
  • Price context
    29% below the 52-week high
    +4
  • Cluster
    3 insiders buying within 14 days
    +15
  • Repeat buying
    First buy in 90 days
    0
  • Track record
    Too few past buys to judge (0 with prices)
    0

What happened after comparable buys

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m -4.3%, 3m -2.5%, 6m -6.8%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

NNUPOct 12, 2026 · close 1.74
Since filing Jun 10, 2025: +7.4%SPY +31.2% · excess -23.8%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001079973-25-001008, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jun 6, 2025POpen-market purchase
Common Stock
+101,416$1.10$112k235,916Jun 10, 2025

Related signals

Other insiders at NOCOPI TECHNOLOGIES INC/MD/ and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
30Weak
NNUPbuy
NOCOPI TECHNOLOGIES INC/MD/
Eric Sites
director
$2,750
1,500 shares
+150%
23Weak
NNUPbuy
NOCOPI TECHNOLOGIES INC/MD/
Eric Sites
director
$1,900
1,000 shares
-
25Weak
NNUPbuy
NOCOPI TECHNOLOGIES INC/MD/
Matthew C. Winger
Chief Executive Officer
$8,910
5,200 shares
+2%
38Weak
NNUPbuy
NOCOPI TECHNOLOGIES INC/MD/
Kevin Camerer Westenburg
President
$50k
33,333 shares
+20%
36Weak
NNUPbuy
NOCOPI TECHNOLOGIES INC/MD/
Kevin Camerer Westenburg
President
$17k
10,500 shares
+8%
27Weak
NNUPbuy
NOCOPI TECHNOLOGIES INC/MD/
Kevin Camerer Westenburg
President
$12k
7,500 shares
+6%
36Weak
NNUPbuy 3
NOCOPI TECHNOLOGIES INC/MD/
Frost Phillip Md Et Al
owner
$215k
195,852 shares
+15%
41Moderate
NNUPbuy 3
NOCOPI TECHNOLOGIES INC/MD/
Joseph S Steinberg
owner
$215k
195,851 shares
+16%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Matthew C. Winger bought $112k of NNUP | InsiderTell