Latest filingSep 04, 2026Most recent Form 4
GEVO
Gevo, Inc.
NasdaqIndustrialsIndustrial Organic Chemicals
Insider activity for last month from 08/05 to 09/05. Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total buying$9.63M2 buys
Total selling$1.03M3 sells
Net open-market+$8.60M6 insiders
Open-market mix
Buy vs sell distribution by transaction countInsider activity report
Monthly open-market purchase and sale counts Buys Sells
Transaction codes
By Form 4 transaction code in selected period6transactions
- S · Open-market sells · dominant3 · 50%
- P · Open-market buys2 · 33%
- A · Grants / awards1 · 17%
Activity by reported role
A joint filing can contribute to multiple roles7transactions
- Director · dominant3 · 43%
- Chief executive officer1 · 14%
- CL1 · 14%
- CS1 · 14%
- EBO1 · 14%
Distinct insiders active
Reporting-owner CIKs by month · peak Aug 2026 (3)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typeWerpy Todd AllenCommon Stock · Direct
62,583Aug 20, 2026
Barber James JCommon Stock · Direct
120,000Aug 21, 2026
Kettner David MichaelCommon Stock · Direct
276,788Aug 21, 2026
Gruber Patrick R.Common Stock · Direct
3,320,455Sep 03, 2026
Bloom Paul DCommon Stock · Direct
1,500,789Sep 03, 2026
Bowron Kimberly TCommon Stock · Direct
684,817Sep 03, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells redAug 05 → Sep 05
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Top insiders
By absolute net value across the selected period- BJ+$77.0k
- KM+$19.4k
- GR-$5.7k
- BD-$2.6k
- BT-$2.1k
Filing detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
GEVO transaction history
Filters apply within this company and selected period by default| Ticker | Insider | Role | Type | Shares | Value | Code | Signals | 90d return | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|---|
| GEVO | Bowron Kimberly T | CS | sale10b5-1 | 1.22k | -$208k | S | — | 0.0% | 09/04 | 09/03 |
| GEVO | Bloom Paul D | CEO | sale10b5-1 | 1.51k | -$258k | S | — | 0.0% | 09/04 | 09/03 |
| GEVO | Gruber Patrick R. | DIR | sale10b5-1 | 3.33k | -$567k | S | — | 0.0% | 09/04 | 09/03 |
| GEVO | Kettner David Michael | CLEBO | buy | 12.5k | $1.93M | P | +9.8% | 08/24 | 08/21 | |
| GEVO | Barber James J | DIR | buy | 50.0k | $7.70M | P | +9.8% | 08/24 | 08/21 | |
| GEVO | Werpy Todd Allen | DIR | grant | 62.5k | $0 | A | +9.8% | 08/24 | 08/20 |
Gevo, Inc. Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at Gevo, Inc.?
Bowron Kimberly T, Bloom Paul D, Gruber Patrick R., Kettner David Michael, Barber James J, Werpy Todd Allen.
When was the latest reported open-market purchase?
Kettner David Michael reported a buy on Aug 21, 2026 valued at $1.93M. Read the SEC filing.
When was the latest reported open-market sale?
Bowron Kimberly T reported a sale on Sep 03, 2026 valued at $208k. Read the SEC filing.
What is the recent purchase and sale balance?
Net open-market buying in the selected period was $86,020.74. This describes filed transactions, not a bullish rating.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.