Latest filingSep 04, 2026Most recent Form 4
OUST
Ouster, Inc.
NasdaqIndustrialsGeneral Industrial Machinery & Equipment, NEC
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$00 buys
Total selling$181M4 sells
Net open-market-$181M2 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 period7transactions
- S · Open-market sells · dominant4 · 57%
- M · Option exercise2 · 29%
- G · Gifts1 · 14%
Activity by reported role
A joint filing can contribute to multiple roles7transactions
- Chief financial officer · dominant4 · 57%
- CTO3 · 43%
Distinct insiders active
Reporting-owner CIKs by month · peak Aug 2026 (2)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typeGianella Kenneth P.Common Stock · Direct
261,014Aug 18, 2026
Frichtl MarkCommon Stock · Direct
337,765Sep 02, 2026
Frichtl MarkIncentive Stock Option · Direct
100,713Aug 26, 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- GP-$1.8M
Filing detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
OUST 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| OUST | Gianella Kenneth P. | CFO | sale10b5-1 | 508 | -$2.39M | S | −12.4% | 08/20 | 08/18 | |
| OUST | Gianella Kenneth P. | CFO | sale10b5-1 | 8.20k | -$38.0M | S | −12.4% | 08/20 | 08/18 | |
| OUST | Gianella Kenneth P. | CFO | sale10b5-1 | 13.3k | -$60.8M | S | −12.4% | 08/20 | 08/18 | |
| OUST | Gianella Kenneth P. | CFO | sale10b5-1 | 17.9k | -$80.0M | S | −12.4% | 08/20 | 08/18 |
Ouster, Inc. Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at Ouster, Inc.?
Frichtl Mark, Gianella Kenneth P..
When was the latest reported open-market purchase?
No code-P purchase is available for this period.
When was the latest reported open-market sale?
Gianella Kenneth P. reported a sale on Aug 18, 2026 valued at $2.39M. Read the SEC filing.
What is the recent purchase and sale balance?
Net open-market selling in the selected period was $1,813,278.32. Sales can occur for many non-investment reasons.
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.