$MDB

$389.84 +$0.73 (0.19%) Close

$MDB Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 80.6M shares outstanding

Who owns MDB?

By type of holder

Institutions 92.1% Insiders 2.9% Everyone else 5.1%

Concentration Top 10 holders own 36.1%

BlackRock, Inc. 7.9% · Vanguard Portfolio Management LLC 5.6%

Institutional ownership

92.1%

+3.5 pts vs last qtr

Institutional holders

869

+53 vs last qtr

Net shares bought

+2.8M

by institutions in Q2 2026

New / sold out

166 / 113

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

FMR LLC +1.5M
Norges Bank NEW +1.4M

Biggest sellers in Q2 2026

Jericho Capital Asset Management L.P. SOLD OUT −996.5K
ValueAct Holdings, L.P. −872.1K

Who is planning to sell?

Notices of proposed sale, last 12 months

$139M

43 notices from 10 people

Shares covered

373.4K

0.46% of the company

Arranged in advance

50%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Merriman Dwight A Director 10b5-1 $62.1M
Bv369 Trust Director $27.6M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2021–FY2026

+37.7%

+6.61% a year

Each share's claim on the business

−27.4%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

$400M vs $2.28B

over 6 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years65% 3–5 years5% 1–3 years14% Under 1 year16%

Quarterly turnover

17.6%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting MDB on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	6.3M	7.87%	+617.0K (+10.8%)	≤2021	0.0%
Shares held by quarter Peak holding6.8M (Q4'24) Change over 8 quarters+422.7K Share of the company7.870% BlackRock, Inc.'s full portfolio →
VP Vanguard Portfolio Management LLC	4.5M	5.56%	−23.5K (−0.5%)	≤2021	0.1%
Shares held by quarter Peak holding4.5M (Q1'26) Change over 8 quarters+4.5M Share of the company5.560% Vanguard Portfolio Management LLC's full portfolio →

BlackRock, Inc.

6.3M

% of company

7.87%

Change vs last qtr

+617.0K (+10.8%)

Held since

≤2021

Vanguard Portfolio Management LLC

4.5M

% of company

5.56%

Change vs last qtr

−23.5K (−0.5%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding MongoDB, Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting MDB on Form N-PORT; together they hold 32.7% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$816M	2.4M	3.01%	0.04%	June 30, 2026
VM Vanguard Mid-Cap Index Fund Vanguard Index Funds	$557M	1.7M	2.06%	0.25%	June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$816M

% of company

3.01%

% of the fund

0.04%

As of

June 30, 2026

Vanguard Mid-Cap Index Fund

Vanguard Index Funds

Position value

$557M

% of company

2.06%

% of the fund

0.25%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding MongoDB, Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
MD Merriman Dwight A Insider	1.5M	1.84%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company1.840% Merriman Dwight A's insider activity →
ID Ittycheria Dev Insider	196.5K	0.24%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.240% Ittycheria Dev's insider activity →

Merriman Dwight A

Insider

1.5M

% of company

1.84%

Change vs last qtr

—

Held since

—

Ittycheria Dev

Insider

196.5K

% of company

0.24%

Change vs last qtr

—

Held since

—

11 more holders behind a free account

See every insider and 5%+ holder of MongoDB, Inc..

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