Why MDB fell 22.6% on Sep 28 2026: ceo resignation
MDB-22.6%on Mon Sep 28 2026
MongoDB, Inc. Class A was down 22.6% on the day at $317.50, ranked #2 on 608× its usual five-minute volume, when TapeRank recorded this drop at 09:10 ET during the pre-market session.
THE DAY ON THE LIST · 1 EVENT
- 09:10 ETMOVER · PRE-MARKET
$317.50 · ▼ 22.6% ON THE DAY · 608× 5M RVOL · RANK #2
STRETCHEDCONFIDENCE5/5MongoDB is down 21.3% after its CEO resigned effective immediately and the company installed a former CEO as interim replacement. Guidance was reaffirmed above consensus, so the sharp selloff is driven by the unexpected leadership disruption rather than operating deterioration disclosed here.
WHYA sudden CEO departure is material, but a 21.3% pre-market collapse is substantially larger than the reaffirmed, above-consensus guidance supports and reflects a severe leadership-risk repricing.ANALYZED 09:07 ET · 3 MIN AGO · OPENAI/GPT-5.6-LUNATHE ROW AND SESSION LEVELS AT 09:10 ET
LAST317.50DAY▼ 22.6%5 MIN▼ 2.86%5M RVOL608×5M $VOL$46.1MFLOAT*80.4MRANK#2SESSIONPRE-MARKETVWAP338.59HOD406.28LOD318.00OR HIGH—OR LOW—PREV CLOSE410.44PM HIGH406.28PM LOW318.00GAP▼ 22.28% (indicated)* FLOAT IS SHARES OUTSTANDING; TRUE FREE FLOAT IS NOT AVAILABLE
— MEANS THE LEVEL DID NOT EXIST YET AT THAT INSTANT, NOT ZERO
THE SESSION
- 09:30 ETOpened at $311.35, -24.1% on the previous close of $410.44
- 09:32 ETRegular-session low, $300.00
- 15:08 ETRegular-session high, $344.30
- 15:59 ETLast trade of the regular session, $334.60, -18.5% on the previous close of $410.44
- Volume: 15.9M shares in regular hours, 1.6M before the open
MongoDB opened at $311.35 after falling 24.1% from the previous close, then dipped to $300.00 at 09:32 ET before reversing higher to a $344.30 afternoon high and ending at $334.60. TapeRank tied the move to the immediate resignation of CEO Chirantan Desai and the appointment of former CEO Dev Ittycheria as interim replacement, while the company reaffirmed quarterly and full-year guidance above estimates; its read was that the sharp selloff reflected leadership disruption rather than operating deterioration disclosed in the update. There were no trading halts.
WRITTEN THU OCT 15 2026 17:57 ET BY OPENAI/GPT-5.6-LUNA FROM THE FACTS ON THIS PAGE
FILINGS AND NEWS · 24H BEFORE THE MOVE
- 08:44 ETMongoDB Affirms FY2027 Adj EPS Guidance of $6.39-$6.58 vs $6.13 Est; Affirms FY2027 Sales Guidance of $2.990B-$3.030B vs $2.954B EstBenzinga
- 08:43 ETMongoDB Affirms Q3 Adj EPS Guidance of $1.57-$1.61 vs $1.54 Est; Affirms Q3 Sales Guidance of $756.000M-$761.000M vs $745.384M EstBenzinga
- 08:34 ETMongoDB Is Reaffirming Its Guidance For Q3 And FY27 Provided On September 1st, 2026Benzinga
- 08:33 ETMongoDB Appoints Dev Ittycheria Interim President, CEO, Effective Immediately, Succeeding Chirantan DesaiBenzinga
- 04:30 ET8-K — Departure or Election of Directors or Officers; Regulation FD Disclosure; Financial Statements and ExhibitsSEC 8-K
On the tape right now
WHERE THE LIST STOODWED NOV 4 2026 · 13:49 ETRECORDED LIVE · 742 QUALIFY
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