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sellWeak

Amy E. Herr sold $320k of TECH

director at BIO-TECHNE Corp. 6,636 shares at an average of $48.28, traded May 8, 2026, filed May 12, 2026.

Warning score
34
Value
$320k
6,636 shares
Holdings after
200
-97% from before
From 52-week low
+4%
low $46.33, close $48.22
From 52-week high
-32%
high $71.07, as of May 8, 2026

Score components

  • Role
    Director
    +15
  • Trade size
    $320k at market
    +14
  • Share of holdings sold
    Sold 97% of holdings
    +20
  • Cluster
    No other insider selling within 14 days
    0
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -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 +14.1%, 3m +52.4%, 6m -.

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.

TECHOct 9, 2026 · close 72.46
Since filing May 12, 2026: +53.3%SPY +5.9% · excess +47.3%

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 0000914190-26-000092, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
May 8, 2026MOption exercise
Common Stockindirect: By significant other
+6,636$47.60$316k6,836May 12, 2026
May 8, 2026SOpen-market sale
Common Stockindirect: By significant other
-6,636$48.28$320k200May 12, 2026
May 8, 2026MOption exercise
Stock Option (Right to Buy)derivativeindirect: By significant other
-6,636$0.00$00May 12, 2026

Related signals

Other insiders at BIO-TECHNE Corp and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
45Moderate
TECHsell
BIO-TECHNE Corp
Amy E. Herr
director
$117k
1,976 shares
-91%
42Moderate
TECHsell 2
BIO-TECHNE Corp
Robert Baumgartner V
director
$958k
17,040 shares
-28%
42Moderate
TECHsell 2
BIO-TECHNE Corp
Roeland Nusse
director
$960k
17,040 shares
-28%
18Weak
TECHsell
BIO-TECHNE Corp
Amy E. Herr
director
$64k
1,280 shares
-39%
20Weak
TECHsell
BIO-TECHNE Corp
Amy E. Herr
director
$123k
1,860 shares
-48%
45Moderate
TECHsell
BIO-TECHNE Corp
Kim Kelderman
Chief Executive Officer
$1.0M
13,392 shares
-26%
15Weak
TECHsell
BIO-TECHNE Corp
John L Higgins
director
$335k
4,000 shares
-10%
42Moderate
TECHsell
BIO-TECHNE Corp
Roeland Nusse
director
$801k
10,400 shares
-19%

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.

Amy E. Herr sold $320k of TECH | InsiderTell