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sellNotable cluster of 3

Michael P Gianoni sold $749k of TDC

director at TERADATA CORP /DE/. 25,000 shares at an average of $29.97, traded Feb 24, 2026, filed Feb 25, 2026.

Warning score
61
Value
$749k
25,000 shares
Holdings after
31,523
-44% from before
From 52-week low
+56%
low $19.20, close $30.03
From 52-week high
-21%
high $37.88, as of Feb 24, 2026

Score components

  • Role
    Director
    +15
  • Trade size
    $749k at market
    +21
  • Share of holdings sold
    Sold 44% of holdings
    +10
  • Cluster
    3 insiders selling within 14 days
    +15

What happened after comparable sells

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 -16.8%, 3m +6.0%, 6m -11.0%.

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.

TDCOct 9, 2026 · close 30.59
Since filing Feb 25, 2026: +0.6%SPY +13.1% · excess -12.5%

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 0001365837-26-000006, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Feb 24, 2026SOpen-market sale
Common Stock
-25,000$29.97$749k31,523Feb 25, 2026

Related signals

Other insiders at TERADATA CORP /DE/ and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
38Weak
TDCsell 210b5-1
TERADATA CORP /DE/
Michael D Hutchinson
Chief Operating Officer
$1.4M
48,077 shares
-22%
27Weak
TDCsell 210b5-1
TERADATA CORP /DE/
Stephen McMillan
President and CEO
$300k
10,000 shares
-1%
20Weak
TDCsell 210b5-1
TERADATA CORP /DE/
Timothy C K Chou
director
$191k
5,657 shares
-13%
29Weak
TDCsell 410b5-1
TERADATA CORP /DE/
Richard J Petley
Chief Revenue Officer
$603k
17,227 shares
-8%
58Moderate
TDCsell 4
TERADATA CORP /DE/
Todd McElhatton
director
$502k
15,000 shares
-36%
28Weak
TDCsell 410b5-1
TERADATA CORP /DE/
Sumeet Arora
Chief Product Officer
$495k
15,000 shares
-6%
60Notable
TDCsell 4
TERADATA CORP /DE/
Stephen McMillan
President and CEO
$634k
20,000 shares
-3%
19Weak
TDCsell 310b5-1
TERADATA CORP /DE/
Sumeet Arora
Chief Product Officer
$82k
2,645 shares
-1%
40Moderate
TDCsell 310b5-1
TERADATA CORP /DE/
Richard J Petley
Chief Revenue Officer
$1.1M
34,317 shares
-14%
58Moderate
TDCsell 2
TERADATA CORP /DE/
Stephen McMillan
President and CEO
$1.5M
50,000 shares
-7%

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.

Michael P Gianoni sold $749k of TDC | InsiderTell