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MDB in the 13F filings

Mongodb Inc · CUSIP 60937P106

Sector · Software and IT servicesTheme · Cloud and enterprise software· L3VLUP-definedTheme · Prepackaged software
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
31 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 8 May 2026
Managers listing it
42
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 28 listed it in both
Shares listed
17,452,094
combined, among listed positions
Reported value
$4.3bn
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 20 buyers (opened or added shares) and 25 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -840,696.

Managers listing MDB in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

42 of 42 holders

ActionFiling
Fidelity (FMR LLC)2,192,883$537munder 0.1%Trimmed-187,57115 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc2,092,486$512m0.06%Added+227,69115 May 2026 (the filing on sec.gov)
AQR Capital Management LLC1,312,130$318m0.15%Added+735,90115 May 2026 (the filing on sec.gov)
Artisan Partners LP1,227,170$300m0.48%Added+798,67513 May 2026 (the filing on sec.gov)
ValueAct Holdings LP1,037,800$254m4.45%Trimmed-369,00015 May 2026 (the filing on sec.gov)
Capital World Investors1,017,235$249munder 0.1%Added+37,05313 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.931,570$228m0.14%Trimmed-525,99215 May 2026 (the filing on sec.gov)
Wellington Management Group LLP904,643$221munder 0.1%Added+684,37215 May 2026 (the filing on sec.gov)
Invesco Ltd903,854$221munder 0.1%Trimmed-159,75912 May 2026 (the filing on sec.gov)
MFS Investment Management891,744$220m0.07%Added+176,64414 May 2026 (the filing on sec.gov)
Arrowstreet Capital LP672,221$165m0.09%Trimmed-664,17614 May 2026 (the filing on sec.gov)
Citadel Advisors LLC557,057$136munder 0.1%Trimmed-304,66015 May 2026 (the filing on sec.gov)
Neuberger Berman Group LLC474,483$116m0.09%Added+396,33227 Oct 2026 (the filing on sec.gov)
Point72 Asset Management LP474,357$116m0.15%Trimmed-238,61915 May 2026 (the filing on sec.gov)
AllianceBernstein LP273,335$115munder 0.1%Trimmed-17,46915 May 2026 (the filing on sec.gov)
Millennium Management LLC399,310$98munder 0.1%Added+62,28915 May 2026 (the filing on sec.gov)
Two Sigma Investments LP287,162$70m0.06%Added+39,40915 May 2026 (the filing on sec.gov)
Baillie Gifford & Co267,331$65m0.07%Held08 May 2026 (the filing on sec.gov)
Whale Rock Capital Management LLC224,648$55m0.71%Trimmed-375,32215 May 2026 (the filing on sec.gov)
Acadian Asset Management LLC206,799$51m0.07%Trimmed-267,54213 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC160,004$39munder 0.1%Trimmed-12,80115 May 2026 (the filing on sec.gov)
Balyasny Asset Management LLC153,763$38munder 0.1%Trimmed-142,82115 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC140,780$34m0.05%Newnew14 May 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP81,912$20m0.16%Added+4,97214 May 2026 (the filing on sec.gov)
Woodline Partners LP78,586$19m0.07%Added+77,09815 May 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (3)

Exited (5)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
17 in Q3 2024 to 23 in Q2 2026

Tracked managers listing it, at least.

010203040201820192020202120222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
MDB by quarter
QuarterHoldersReported valueBuyersSellers
Q4 20176$18mn.a.n.a.
Q1 20184$48mn.a.n.a.
Q2 20189$316mn.a.n.a.
Q3 20187$935mn.a.n.a.
Q4 20189$1.2bnn.a.n.a.
Q1 201914$2.4bnn.a.n.a.
Q2 201912$2.3bnn.a.n.a.
Q3 201911$2.2bnn.a.n.a.
Q4 20199$2.6bnn.a.n.a.
Q1 202011$2.6bnn.a.n.a.
Q2 202011$4.4bnn.a.n.a.
Q3 202015$4.8bnn.a.n.a.
Q4 202021$7.6bnn.a.n.a.
Q1 202127$5.5bnn.a.n.a.
Q2 202122$8.3bnn.a.n.a.
Q3 202122$11.4bnn.a.n.a.
Q4 202123$13.0bnn.a.n.a.
Q1 202226$10.9bnn.a.n.a.
Q2 202225$6.4bnn.a.n.a.
Q3 202220$5.0bnn.a.n.a.
Q4 202222$4.3bnn.a.n.a.
Q1 202318$5.3bnn.a.n.a.
Q2 202331$8.2bnn.a.n.a.
Q3 202332$6.5bnn.a.n.a.
Q4 202328$7.1bn1815
Q1 202422$5.7bn1115
Q2 202425$4.3bn1810
Q3 202417$3.9bn911
Q4 202422$2.4bn1510
Q1 202519$1.3bn158
Q2 202530$2.1bn238
Q3 202531$4.6bn1914
Q4 202534$7.3bn2822
Q1 202631$3.9bn2025
Q2 202623$4.4bn1529

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

MDB and GOOGL →MDB and AMZN →MDB and MSFT →Choose a stock to compare with MDB →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own MDB, latest filings →Back to the 13F Explorer →