Skip to content
buyWeak

John C Hill bought $25k of CET

CEO & President at CENTRAL SECURITIES CORP. 500 shares at an average of $50.91, traded Dec 29, 2025, filed Dec 30, 2025.

Conviction score
30
Value
$25k
500 shares
Holdings after
77,373
+1% from before
From 52-week low
+32%
low $38.35, close $50.46
From 52-week high
-1%
high $50.90, as of Dec 29, 2025

Score components

  • Role
    CEO
    +25
  • Trade size
    $25k at market
    +5
  • Relative to holdings
    Under 1% of holdings (0.7%)
    -5
  • Price context
    Near the top of the 52-week range
    0
  • Cluster
    No other insider buying within 14 days
    0
  • Repeat buying
    2 buys in 90 days
    +5
  • Track record
    Too few past buys to judge (1 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 +2.8%, 3m -2.2%, 6m +3.9%.

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.

CETOct 13, 2026 · close 56.07
Since filing Dec 30, 2025: +11.0%SPY +14.1% · excess -3.1%

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 0001209992-25-000015, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 29, 2025POpen-market purchase
Common Stock
+500$50.91$25k77,373Dec 30, 2025

Related signals

Other insiders at CENTRAL SECURITIES CORP and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
Pro nowfree Oct 15, 2026
CETbuy
CENTRAL SECURITIES CORP
John C Hill
CEO & President
$28k
500 shares
+1%
18Weak
CETbuy 2
CENTRAL SECURITIES CORP
Leo Price Blackford
director
$11k
204 shares
+0%
28Weak
CETbuy 2
CENTRAL SECURITIES CORP
John C Hill
CEO & President
$12k
233 shares
+0%
30Weak
CETbuy
CENTRAL SECURITIES CORP
John C Hill
CEO & President
$25k
500 shares
+1%
20Weak
CETbuy
CENTRAL SECURITIES CORP
John C Hill
CEO & President
$5,070
100 shares
+0%
35Weak
CETbuy 2
CENTRAL SECURITIES CORP
Andrew J O'Neill
Vice President
$60k
1,309 shares
+2%
38Weak
CETbuy 2
CENTRAL SECURITIES CORP
John C Hill
CEO & President
$32k
700 shares
+1%
39Weak
CETbuy 2
CENTRAL SECURITIES CORP
John C Hill
CEO & President
$37k
800 shares
+1%
30Weak
CETbuy 2
CENTRAL SECURITIES CORP
Andrew J O'Neill
Vice President
$62k
1,354 shares
+2%
28Weak
CETbuy 2
CENTRAL SECURITIES CORP
John C Hill
CEO & President
$20k
500 shares
+1%

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.

John C Hill bought $25k of CET | InsiderTell