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Celeste Beeks Mastin Insider Profile

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Celeste Beeks Mastin, Director at Yield10 Bioscience, holds 41.54K shares in H.B. Fuller Company (Ticker: FUL), holds 10.21K shares in Granite Construction (Ticker: GVA), holds 12.50K shares in Yield10 Bioscience (Ticker: YTENQ). Most recently, Celeste Beeks Mastin Bought ― shares of H.B. Fuller Company on Apr 07, 2026 for an estimated value of $295.10K.
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Celeste Beeks Mastin

Celeste Beeks Mastin
Yield10 Bioscience (YTENQ)
Director

Ranked #50,139 out of 107,360 Corporate Insiders

Profitable Transactions

100%
2 out of 2 Profitable Transactions

Average Return

+5.90%
Average return per transaction
Time Frame
1 Year
Compare to
No Benchmark
How are Insiders Ranked?

Insider Holdings

$4M
64.41%
35.59%
<0.01%
A breakdown of Celeste Beeks Mastin's holdings
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Insider Roles

H.B. Fuller Company
(FUL)
President & CEO, Director
Granite Construction
(GVA)
Director
Yield10 Bioscience
(YTENQ)
Director
Roles that Celeste Beeks Mastin holds in companies
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Most Profitable Insider Trade

Stock:
H.B. Fuller Company
(FUL)
Rating:Informative Buy
Date:Apr 01, 2025 - Apr 01, 2026
Return:+11.00%
The most profitable trade made by Celeste Beeks Mastin
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Celeste Beeks Mastin's Trading History

Company Name
Last Transaction Date
Insider Position
Last Transaction
Last Transaction Amount
Holding Value
YTENQ
Yield10 Bioscience
Sep 14, 2015
Director
Uninformative Buy
―
$187.50
GVA
Granite Construction
Nov 24, 2025
Director
Uninformative Sell
801.22K
$1.33M
FUL
H.B. Fuller Company
Apr 07, 2026
President & CEO, Director
Informative Buy
295.10K
$2.40M
FOE
Ferro
―
―
―
$755.76K
List of latest transactions for each holding click on a transaction to see Celeste Beeks Mastin's performance on stock
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Celeste Beeks Mastin insider profile FAQ

What is the percentage of profitable transactions made by Celeste Beeks Mastin?
The percentage of profitable transactions made by Celeste Beeks Mastin is 100%.
    What is the average return per transaction made by Celeste Beeks Mastin?
    The average return per transaction made by Celeste Beeks Mastin is 5.90%.
      What stocks does Celeste Beeks Mastin hold?
      Celeste Beeks Mastin holds: YTENQ, GVA, FUL, FOE stocks.
        What was Celeste Beeks Mastin’s latest transaction?
        Celeste Beeks Mastin latest transaction was an Informative Buy of $295.10K.
          What was Celeste Beeks Mastin's most profitable transaction?
          Celeste Beeks Mastin’s most profitable transaction was an Informative Buy of FUL stock on April 1, 2025. The return on the trade was 11.00%.
            What is Celeste Beeks Mastin's role in Yield10 Bioscience?
            Celeste Beeks Mastin's role in Yield10 Bioscience is Director.
              How can I follow the stock ratings of top corporate insiders?
              Head over to our Expert Center to see a list of the Top 100 corporate insiders and follow the corporate insiders of your choice. Visit their profiles for more details about their stock transactions and see how they perform on a stock-by-stock basis.