BASE (Couchbase, Inc. Common Stock)
Insider Trading Activity
Every open-market purchase and sale reported by BASE officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2025-09-24 | Aleksander J Migon | Director | D | — | — |
| 2025-09-24 | Alvina Antar | Director | D | — | — |
| 2025-09-24 | David C Scott | Director | D | — | — |
| 2025-09-24 | William Robert Carey | Interim CFO & CAO | D | — | — |
| 2025-09-24 | Matthew M Cain | Chair, President & CEO | D | — | — |
| 2025-09-24 | Lynn M Christensen | Director | D | — | — |
| 2025-09-24 | EDWARD T ANDERSON | Director | D | — | — |
| 2025-09-24 | Margaret Chow | SVP & Chief Legal Officer | D | — | — |
| 2025-09-24 | Huw Owen | SVP & Chief Revenue Officer | D | — | — |
| 2025-09-24 | Carol W. Carpenter | Director | D | — | — |
| 2025-09-24 | Jeff Epstein | Director | D | — | — |
| 2025-09-24 | Richard A Simonson | Director | D | — | — |
| 2025-09-24 | KEVIN EFRUSY | Director | D | — | — |
| 2025-09-18 | Huw Owen | SVP & Chief Revenue Officer | F | — | — |
| 2025-09-18 | William Robert Carey | Interim CFO & CAO | F | — | — |
| 2025-09-18 | Matthew M Cain | Chair, President, and CEO | F | — | — |
| 2025-09-18 | Margaret Chow | SVP & Chief Legal Officer | F | — | — |
| 2025-09-17 | Lynn M Christensen | Director | A | — | — |
| 2025-09-17 | Richard A Simonson | Director | A | — | — |
| 2025-09-17 | Aleksander J Migon | Director | A | — | — |
| 2025-09-17 | EDWARD T ANDERSON | Director | A | — | — |
| 2025-09-17 | KEVIN EFRUSY | Director | A | — | — |
| 2025-09-03 | Matthew M Cain | Chair, President, and CEO | Sell | — | — |
| 2025-08-20 | Matthew M Cain | Chair, President, and CEO | Sell | — | — |
| 2025-08-04 | Matthew M Cain | Chair, President, and CEO | Sell | — | — |
| 2025-07-17 | Matthew M Cain | Chair, President, and CEO | Sell | — | — |
| 2025-07-02 | Matthew M Cain | Chair, President, and CEO | Sell | — | — |
| 2025-06-27 | Huw Owen | SVP & Chief Revenue Officer | Sell | — | — |
| 2025-06-24 | William Robert Carey | Interim CFO & CAO | Sell | — | — |
| 2025-06-24 | Lynn M Christensen | Director | Sell | — | — |
| 2025-06-24 | Huw Owen | SVP & Chief Revenue Officer | Sell | — | — |
| 2025-06-24 | Matthew M Cain | Chair, President, and CEO | Sell | — | — |
| 2025-06-18 | Lynn M Christensen | Director | MIXED | — | — |
| 2025-06-18 | Richard A Simonson | Director | A | — | — |
| 2025-06-18 | William Robert Carey | Interim CFO & CAO | F | — | — |
| 2025-06-18 | Margaret Chow | SVP & Chief Legal Officer | F | — | — |
| 2025-06-18 | Huw Owen | SVP & Chief Revenue Officer | F | — | — |
| 2025-06-18 | Matthew M Cain | Chair, President, and CEO | MIXED | — | — |
| 2025-06-18 | Aleksander J Migon | Director | A | — | — |
| 2025-06-18 | EDWARD T ANDERSON | Director | A | — | — |
| 2025-06-18 | KEVIN EFRUSY | Director | A | — | — |
| 2025-06-06 | William Robert Carey | Interim CFO & CAO | Sell | — | — |
| 2025-06-04 | Carol W. Carpenter | Director | Sell | — | — |
| 2025-06-02 | David C Scott | Director | A | — | — |
| 2025-06-02 | EDWARD T ANDERSON | Director | A | — | — |
| 2025-06-02 | Alvina Antar | Director | A | — | — |
| 2025-06-02 | Richard A Simonson | Director | A | — | — |
| 2025-06-02 | Carol W. Carpenter | Director | A | — | — |
| 2025-06-02 | Lynn M Christensen | Director | A | — | — |
| 2025-06-02 | Jeff Epstein | Director | A | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | 10%+ Owner | 4,369,543 | — |
| — | 10%+ Owner | 3,969,066 | — |
| — | 10%+ Owner | 3,406,128 | — |
| — | 10%+ Owner | 3,406,128 | — |
| — | 10%+ Owner | 3,341,480 | — |
| — | 10%+ Owner | 3,222,864 | — |
| — | 10%+ Owner | 2,618,234 | — |
| — | 10%+ Owner | 1,987,084 | — |
| — | SVP & Chief Financial Officer | 326,945 | — |
| — | SVP & Chief Revenue Officer | 177,299 | — |
| — | Director | 26,207 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the BASE quote page; the site-wide leaderboard is on the insider transactions hub.