Ouster, Inc.
OUST- Exchange
- Nasdaq
- Industry
- General Industrial Machinery & Equipment, NEC
- SEC CIK
- 0001816581
In the last 90 days, Ouster, Inc. insiders filed 0 open-market purchases and 9 sales; 331 institutions reported holding it in 13F filings for Q2 2026, worth $2.22B in total; no superinvestor holds it.
Holders of 5% or more of OUST
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Ouster, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13G/A | 7.40%4.43M shares | – | Jan 21, 20261 filing | Jan 21, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
2 Schedule 13D and 13G filings on Ouster, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Mar 27, 202611:20 AM ET | Vanguard Group Inc | 13G/A | 0.00%0 shares | –Below 5% | Mar 13, 2026 | SEC |
| Jan 21, 202612:30 PM ET | BlackRock, Inc. | 13G/A | 7.40%4.43M shares | – | Dec 31, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Ouster, Inc. shares.
No Form 144 notices for Ouster, Inc. are on file.