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Appointment · 28 September 2026

MongoDB, Inc.

MDB · Listed

Key facts

How the CEO left
Resignation
Planned or abrupt
Abrupt
Successor
Interim CEO
Outgoing CEO stays as
Leaves the company
Signs it was forced
None stated
Other news alongside
None
Effective
28 September 2026
Reason given
leaving to pursue a senior role at Meta Platforms, Inc.

Read from the filing and press release by a language model (Google Gemini), told to use only that text. It can make mistakes; the quotes below are the source.

The announcement

Appointment of Interim President and Chief Executive Officer On September 26, 2026, the Board appointed Dev Ittycheria as the Company’s Interim President and Chief Executive Officer, effective September 28, 2026 to serve until a successor is duly elected and qualified unless sooner removed.

Sentences matched by our CEO change rules, from the first filing (2 related filings within 90 days were merged into this event). Read the 8-K on SEC EDGAR ↗

Share price reaction

The filing reached SEC EDGAR on 28 September 2026 at 12:30 New York time, during trading hours, so day 0 is that same day. Day 0 is marked by the vertical line.

MDB S&P 500 (SPY)
708090100110−60−45−30−15Day 0+15Trading days before (−) and after (+) the announcementDay 0 · 28 Sept 2026MDBS&P
Both lines start from 100 on the trading day before the announcement (day −1), so the gap between them shows how the stock did relative to the market. Prices adjusted for splits and dividends. Drag across the chart to zoom in.
WindowMDBS&P 500Abnormal
Days 0 to +1−17.8%−0.9%−16.3%
Days 0 to +3−14.3%−1.0%−12.0%
1 month (days 0 to +21)−5.0%−0.2%−2.2%
3 months (days 0 to +63)so far, 22 of 64 days−5.0%−0.2%−2.2%

The abnormal return is the stock's return beyond what its usual relationship with the market (beta 1.63) predicts. A single stock's move can reflect other news on the same days, so it describes what happened rather than measuring the effect of the CEO change; averages across many events are on the Research design page as they are completed.

News coverage

Headlines from the day before the filing to three days after, found in the GDELT news index by company name, so an occasional match may be about something else. Tone is FinBERT's reading of the headline alone, a language model trained on financial news; it is not our view of the change.