Insider trading

Period: 120 months Stock: GEVO Plan: Not on a plan × + Add filter Clear all
Views & alerts

Save your view. Keep the filter you have built, and get an email when a new filing matches it. A free account does both.

When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

61 decisions over 120 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

61 decisions over 120 months
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

61 decisions over 120 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

61 decisions over 120 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
61 decisions over 120 months Remove this filter
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
61 decisions over 120 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

61 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
21 Aug 2026
Barber James J Director
Bought
$77.00K 50,000 at 1.54
71.4%
First buy on file
21 Aug 2026
Kettner David Michael Chief Legal & Emrg Biz Officer
Bought
$19.37K 12,500 at 1.55
4.7%
First buy on file
12 Mar 2026
Mize Gary W. Director
Sold at will
$250.08K 107,100 at 2.34
27.6%
Not planned
5 Dec 2025
Sold at will
$169.18K 73,284 at 2.31
21.3%
Not planned
4 Dec 2025
Gendenjamts Davaajargal VP Acctg and Treasurer
Sold at will
$5.94K 2,560 at 2.32
4.1%
Not planned
13 Nov 2025
Sold at will
$152.78K 75,597 at 2.02
21.4%
Not planned
20 Aug 2025
Sold at will
$93.94K 57,651 at 1.63
17.2%
Not planned
18 Aug 2025
Mize Gary W. Director
Sold at will
$153.26K 91,459 at 1.68
19.1%
Not planned
1 Jul 2025
Smull L Lynn EVP · indirect
Sold at will
$5.23K 3,929 at 1.33
17.8%
Not planned
20 Jun 2025
Shafer Andrew Chief Cust Mkt & Brnd Officer
Sold at will
$6.74K 5,000 at 1.35
1.5%
Not planned
21 Nov 2024
Bowron Kimberly T Chief People and IT Officer · indirect
Sold at will
$18.37K 14,241 at 1.29
100%
Sold half or more
26 Dec 2023
Shafer Andrew Chief Mktg Cust & Brnd Officer
Sold at will
$30.72K 24,978 at 1.23
13.7%
Not planned
23 Aug 2023
BAUM WILLIAM H Director
Sold at will
$11.35K 8,236 at 1.38
3.6%
Not planned
19 Dec 2022
Smull L Lynn Chief Financial Officer
Sold, plan not stated
$33.41K 17,676 at 1.89
2.2%
12 Dec 2022
Nurmat Alisher K VP and Controller
Sold, plan not stated
$1.77K 1,010 at 1.75
1.9%
21 Nov 2022
Marsh Andrew Director
Sold, plan not stated
$85.38K 41,904 at 2.04
17.1%
22 Aug 2022
Gruber Patrick R. Chief Executive Officer
Sold, plan not stated
$547.52K 177,690 at 3.08
6.6%
22 Aug 2022
Ryan Christopher Michael President & COO
Sold, plan not stated
$207.85K 67,406 at 3.08
6.0%
22 Aug 2022
Smull L Lynn Chief Financial Officer
Sold, plan not stated
$206.58K 66,995 at 3.08
7.6%
22 Aug 2022
Cesarek Timothy J Chief Commercial Officer
Sold, plan not stated
$200.03K 64,872 at 3.08
7.0%
22 Aug 2022
Bloom Paul D CCO & CIO
Sold, plan not stated
$177.01K 57,405 at 3.08
10.0%
22 Aug 2022
Williams Geoffrey Thomas Jr. VP-General Counsel & Secretary
Sold, plan not stated
$55.63K 18,041 at 3.08
4.6%
22 Aug 2022
Bowron Kimberly T Chief People Officer
Sold, plan not stated
$45.27K 14,681 at 3.08
7.1%
22 Aug 2022
BAUM WILLIAM H Director
Sold, plan not stated
$35.56K 11,531 at 3.08
8.4%
22 Aug 2022
Mize Gary W. Director
Sold, plan not stated
$30.47K 9,883 at 3.08
6.0%
7 Jul 2022
Gruber Patrick R. Chief Executive Officer
Sold, plan not stated
$631.97K 249,790 at 2.53
11.0%
7 Jul 2022
Cesarek Timothy J Chief Commercial Officer
Sold, plan not stated
$249.27K 98,526 at 2.53
11.3%
7 Jul 2022
Smull L Lynn Chief Financial Officer
Sold, plan not stated
$237.63K 93,924 at 2.53
11.5%
7 Jul 2022
Ryan Christopher Michael President & COO
Sold, plan not stated
$200.24K 79,145 at 2.53
8.2%
7 Jul 2022
Williams Geoffrey Thomas Jr. VP-General Counsel & Secretary
Sold, plan not stated
$144.98K 57,306 at 2.53
15.5%
7 Jul 2022
BAUM WILLIAM H Director
Sold, plan not stated
$45.04K 17,803 at 2.53
11.5%
7 Jul 2022
Mize Gary W. Director
Sold, plan not stated
$38.61K 15,260 at 2.53
8.5%
21 Jun 2022
Ryan Christopher Michael President & COO
Sold, plan not stated
$132.00K 51,049 at 2.59
5.0%
24 Mar 2022
Mize Gary W. Director
Sold, plan not stated
$453.47K 101,343 at 4.47
40.0%
24 Mar 2022
BAUM WILLIAM H Director
Sold, plan not stated
$396.23K 90,000 at 4.40
41.3%
24 Mar 2022
Mize Gary W. Director
Bought
$158.32K 35,339 at 4.48
16.2%
First buy on file
9 Sep 2021
Williams Geoffrey Thomas Jr. VP-General Counsel & Secretary
Sold, plan not stated
$411.34K 51,316 at 8.02
12.2%
6 Jun 2019
Cesarek Timothy J Chief Commercial Officer
Bought
$47.75K 25,000 at 1.91
500%
First buy on file
17 Aug 2018
Bought
$117.23K 37,170 at 3.15
33.5%
First buy on file
16 Aug 2018
Bought 4×
$304.56K 100,000 at 3.05
907%
First buy on file
16 Aug 2018
Gruber Patrick R. Chief Executive Officer
Bought 2×
$29.29K 10,000 at 2.93
10.0%
First buy on file
13 Mar 2017
Ryan Christopher Michael President and COO
Sold, plan not stated
$6.72 7 at 0.96
0.3%
13 Mar 2017
Gruber Patrick R. Chief Executive Officer
Sold, plan not stated
$5.76 6 at 0.96
0.2%
13 Mar 2017
Sold, plan not stated
$1.92 2 at 0.96
0.1%
13 Mar 2017
Roda Gregory Chief Commercial Officer
Sold, plan not stated
$0.96 1 at 0.96
0.2%
13 Feb 2017
Ryan Christopher Michael President and COO
Sold, plan not stated
$17.57 7 at 2.51
0.3%
13 Feb 2017
Gruber Patrick R. Chief Executive Officer
Sold, plan not stated
$15.06 6 at 2.51
0.2%
13 Feb 2017
Sold, plan not stated
$5.02 2 at 2.51
0.1%
13 Feb 2017
Roda Gregory Chief Commercial Officer
Sold, plan not stated
$2.51 1 at 2.51
0.2%
12 Jan 2017
Ryan Christopher Michael President and COO
Sold, plan not stated
$26.95 7 at 3.85
0.3%
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