BASE · Insider Trading

Couchbase, Inc. Common Stock

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.

Form 4 Filings
50
most recent
Open-Market Buys
0
code P
Sales
12
code S
Reporting Insiders
1
current holders
BASE — Recent Form 4 Transactions (latest 2025-09-24)
FiledInsiderRole TypeSharesValue
2025-09-24 Aleksander J Migon Director D −45,734 —
2025-09-24 Alvina Antar Director D −47,379 —
2025-09-24 David C Scott Director D −37,738 —
2025-09-24 William Robert Carey Interim CFO & CAO D −88,936 —
2025-09-24 Matthew M Cain Chair, President & CEO D −794,061 —
2025-09-24 Lynn M Christensen Director D −12,218 —
2025-09-24 Edward T Anderson Director D −4,774,204 —
2025-09-24 Margaret Chow SVP & Chief Legal Officer D −191,917 —
2025-09-24 Huw Owen SVP & Chief Revenue Officer D −354,803 —
2025-09-24 Carol W. Carpenter Director D −26,938 —
2025-09-24 Jeff Epstein Director D −89,361 —
2025-09-24 Richard A Simonson Director D −51,549 —
2025-09-24 Kevin Efrusy Director D −3,108,611 —
2025-09-18 Huw Owen SVP & Chief Revenue Officer F −23,017 −$561.77K
2025-09-18 William Robert Carey Interim CFO & CAO F −3,507 −$85.59K
2025-09-18 Matthew M Cain Chair, President, and CEO F −35,677 −$870.76K
2025-09-18 Margaret Chow SVP & Chief Legal Officer F −7,509 −$183.27K
2025-09-17 Lynn M Christensen Director A +398 —
2025-09-17 Richard A Simonson Director A +778 —
2025-09-17 Aleksander J Migon Director A +461 —
2025-09-17 Edward T Anderson Director A +461 —
2025-09-17 Kevin Efrusy Director A +420 —
2025-09-03 Matthew M Cain Chair, President, and CEO Sell −23,211 −$565.98K
2025-08-20 Matthew M Cain Chair, President, and CEO Sell −12,357 −$300.85K
2025-08-04 Matthew M Cain Chair, President, and CEO Sell −5,542 −$134.42K
2025-07-17 Matthew M Cain Chair, President, and CEO Sell −12,357 −$300.32K
2025-07-02 Matthew M Cain Chair, President, and CEO Sell −5,542 −$135.06K
2025-06-27 Huw Owen SVP & Chief Revenue Officer Sell −15,873 −$385.35K
2025-06-24 William Robert Carey Interim CFO & CAO Sell −1,321 −$33.02K
2025-06-24 Lynn M Christensen Director Sell −167 −$4.08K
2025-06-24 Huw Owen SVP & Chief Revenue Officer Sell −10,716 −$261.90K
2025-06-24 Matthew M Cain Chair, President, and CEO Sell −63,600 −$1.54M
2025-06-18 Lynn M Christensen Director MIXED −7,413 −$158.76K
2025-06-18 Richard A Simonson Director A +1,013 —
2025-06-18 William Robert Carey Interim CFO & CAO F −1,016 −$19.34K
2025-06-18 Margaret Chow SVP & Chief Legal Officer F −5,749 −$109.44K
2025-06-18 Huw Owen SVP & Chief Revenue Officer F −23,290 −$443.34K
2025-06-18 Matthew M Cain Chair, President, and CEO MIXED −43,935 −$843.97K
2025-06-18 Aleksander J Migon Director A +599 —
2025-06-18 Edward T Anderson Director A +599 —
2025-06-18 Kevin Efrusy Director A +546 —
2025-06-06 William Robert Carey Interim CFO & CAO Sell −2,300 −$44.85K
2025-06-04 Carol W. Carpenter Director Sell −900 −$16.09K
2025-06-02 David C Scott Director A +9,711 —
2025-06-02 Edward T Anderson Director A +9,711 —
2025-06-02 Alvina Antar Director A +9,711 —
2025-06-02 Richard A Simonson Director A +9,711 —
2025-06-02 Carol W. Carpenter Director A +9,711 —
2025-06-02 Lynn M Christensen Director A +9,711 —
2025-06-02 Jeff Epstein Director A +9,711 —
BASE — Current Insider Holders
InsiderRole Shares HeldValue
Gregory N Henry SVP & Chief Financial Officer 326,945 $8.01M
BASE Insider Trading FAQ
Who are the insiders at BASE?
1 officers, directors and 10%+ beneficial owners currently report holdings in BASE via SEC Form 4.
Are BASE insiders buying or selling?
Across the 50 most recent Form 4 filings for BASE, 0 were open-market purchases (code P) and 12 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is BASE insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent BASE filing is dated 2025-09-24.
How to read Form 4 activity

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.

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.