Ticker · CUSIP 60937P106
Holders (tracked)
27
Combined shares
13,230,690
Combined value
$4.77B
Last close
$251.14
Quarter
2025Q4
Tracked holders · last 8 quarters
+4 vs previous quarter over the last 8.
Price is -30.4% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
30 events
- MERRIMAN DWIGHT A2026-04-16Sold $918.1K @ $252.22Insider sell
- MERRIMAN DWIGHT A2026-04-16Sold $91.2K @ $253.40Insider sell
- MERRIMAN DWIGHT A2026-04-14Sold $97.0K @ $238.85Insider sell
- MERRIMAN DWIGHT A2026-04-14Sold $298.9K @ $237.97Insider sell
- MERRIMAN DWIGHT A2026-04-14Sold $1.34M @ $236.68Insider sell
- MERRIMAN DWIGHT A2026-04-14Sold $155.4K @ $235.42Insider sell
- Whale Rock Capital added2026-02-17+47,870 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−75,635 shares · 2025Q413F
- −68,500 shares · 2025Q413F
- D.E. Shaw & Co. added2026-02-17+115,340 shares · 2025Q413F
- Stanley Druckenmiller (Duquesne) exited2026-02-17−17,710 shares · 2025Q413F
- ValueAct Holdings trimmed2026-02-17−711,400 shares · 2025Q413F
- AQR Capital Management trimmed2026-02-17−2,496 shares · 2025Q413F
- Two Sigma Investments added2026-02-17+169,346 shares · 2025Q413F
- Steve Cohen (Point72) trimmed2026-02-17−619,513 shares · 2025Q413F
- T. Rowe Price trimmed2026-02-17−88,290 shares · 2025Q413F
- Wellington Management added2026-02-17+52,504 shares · 2025Q413F
- +30,000 shares · 2025Q413F
- Chase Coleman (Tiger Global) exited2026-02-17−341,000 shares · 2025Q413F
- Ken Griffin (Citadel Advisors) added2026-02-17+160,355 shares · 2025Q413F
- +560 shares · 2025Q413F
- George Soros (Soros Fund Mgmt) trimmed2026-02-13−7,145 shares · 2025Q413F
- Lee Ainslie (Maverick Capital) exited2026-02-13−136,932 shares · 2025Q413F
- Renaissance Technologies exited2026-02-12−92,900 shares · 2025Q413F
- Norges Bank (Norway SWF) opened position2026-02-10+1,369,632 shares · 2025Q413F
- Baillie Gifford & Co opened position2026-01-23+267,331 shares · 2025Q413F
- −27,088 shares · 2025Q313F
- D.E. Shaw & Co. added2025-11-14+516,608 shares · 2025Q313F
- AQR Capital Management trimmed2025-11-14−532,922 shares · 2025Q313F
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−158,114 shares · 2025Q313F
Insider activity
Last 30 days
Net (open-market)
−$2.90M
Buys
0 · $0
Sells
6 · $2.90M
Unique insiders
1
| Date | Insider | Code | Shares | Price | Value |
|---|---|---|---|---|---|
| 04-16 | MERRIMAN DWIGHT A Director | S | 3,640 | $252.22 | $918.1K |
| 04-16 | MERRIMAN DWIGHT A Director | S | 360 | $253.40 | $91.2K |
| 04-14 | MERRIMAN DWIGHT A Director | S | 406 | $238.85 | $97.0K |
| 04-14 | MERRIMAN DWIGHT A Director | S | 1,256 | $237.97 | $298.9K |
| 04-14 | MERRIMAN DWIGHT A Director | S | 5,678 | $236.68 | $1.34M |
| 04-14 | MERRIMAN DWIGHT A Director | S | 660 | $235.42 | $155.4K |
Follow-the-investor returns
If you'd copied each holder of MDB…
Cost basis inferred from 13F share-delta history. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| T. Rowe Price | 2017Q4 | $12.07 | +1980.1% | $468.3M |
| ValueAct Holdings | 2025Q2 | $185.29 | +35.5% | $353.3M |
| AQR Capital Management | 2019Q2 | $211.53 | +18.7% | $144.7M |
| Whale Rock Capital | 2018Q1 | $225.28 | +11.5% | $150.7M |
| Ray Dalio (Bridgewater Associates) | 2021Q3 | $268.19 | -6.4% | $141K |
| Wellington Management | 2018Q1 | $271.13 | -7.4% | $55.3M |
| Ken Griffin (Citadel Advisors) | 2017Q4 | $278.09 | -9.7% | $243.5M |
| Ken Griffin (Citadel Advisors) | 2017Q4 | $278.09 | -9.7% | $243.5M |
| Ken Griffin (Citadel Advisors) | 2017Q4 | $278.09 | -9.7% | $243.5M |
| George Soros (Soros Fund Mgmt) | 2023Q2 | $317.46 | -20.9% | $7.1M |
| Izzy Englander (Millennium Mgmt) | 2017Q4 | $343.73 | -26.9% | $41.9M |
| Izzy Englander (Millennium Mgmt) | 2017Q4 | $343.73 | -26.9% | $41.9M |
| Izzy Englander (Millennium Mgmt) | 2017Q4 | $343.73 | -26.9% | $41.9M |
| Paul Tudor Jones (Tudor Investment) | 2017Q4 | $364.44 | -31.1% | $27.4M |
| Paul Tudor Jones (Tudor Investment) | 2017Q4 | $364.44 | -31.1% | $27.4M |
| Paul Tudor Jones (Tudor Investment) | 2017Q4 | $364.44 | -31.1% | $27.4M |
| Two Sigma Investments | 2018Q2 | $411.88 | -39.0% | $1.0M |
| Two Sigma Investments | 2018Q2 | $411.88 | -39.0% | $1.0M |
| Two Sigma Investments | 2018Q2 | $411.88 | -39.0% | $1.0M |
| Steve Cohen (Point72) | 2018Q2 | $412.95 | -39.2% | $26.5M |
| Steve Cohen (Point72) | 2018Q2 | $412.95 | -39.2% | $26.5M |
| Steve Cohen (Point72) | 2018Q2 | $412.95 | -39.2% | $26.5M |
| Baillie Gifford & Co | 2020Q4 | $415.84 | -39.6% | $67.1M |
| D.E. Shaw & Co. | 2018Q2 | $415.96 | -39.6% | $100.1M |
| D.E. Shaw & Co. | 2018Q2 | $415.96 | -39.6% | $100.1M |
| D.E. Shaw & Co. | 2018Q2 | $415.96 | -39.6% | $100.1M |
| Norges Bank (Norway SWF) | 2019Q1 | $5709.24 | -95.6% | $344.0M |
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions4
- Norges Bank (Norway SWF)+1,369,632$574.8M
- Baillie Gifford & Co+267,331$112.2M
- Paul Tudor Jones (Tudor Investment)+30,000$12.6M
- Ray Dalio (Bridgewater Associates)+560$235K
Added to5
- Two Sigma Investments+169,346$71.1M
- Ken Griffin (Citadel Advisors)+160,355$67.3M
- D.E. Shaw & Co.+115,340$48.4M
- Wellington Management+52,504$22.0M
- Whale Rock Capital+47,870$20.1M
Trimmed6
- ValueAct Holdings−711,400$298.6M
- Steve Cohen (Point72)−619,513$260.0M
- Izzy Englander (Millennium Mgmt)−75,635$31.7M
- George Soros (Soros Fund Mgmt)−7,145$3.0M
- AQR Capital Management−2,496$1.0M
- T. Rowe Price−88,290$37K
Exited5
- Chase Coleman (Tiger Global)−341,000$105.8M
- Lee Ainslie (Maverick Capital)−136,932$42.5M
- Renaissance Technologies−92,900$28.8M
- Glen Kacher (Light Street Capital)−68,500$21.3M
- Stanley Druckenmiller (Duquesne)−17,710$5K
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 22 | $255.48B |
| 2022Q2 | 21 | $142.63B |
| 2022Q3 | 21 | $127.5M |
| 2022Q4 | 22 | $2.47B |
| 2023Q1 | 22 | $2.62B |
| 2023Q2 | 21 | $4.81B |
| 2023Q3 | 23 | $3.47B |
| 2023Q4 | 16 | $3.74B |
| 2024Q1 | 19 | $4.06B |
| 2024Q2 | 21 | $3.54B |
| 2024Q3 | 21 | $2.00B |
| 2024Q4 | 21 | $1.36B |
| 2025Q1 | 21 | $1.49B |
| 2025Q2 | 24 | $2.24B |
| 2025Q3 | 23 | $3.28B |
| 2025Q4 | 27 | $4.77B |
Congress members trading this stock
| Date | Member | Type | Amount range | Filing |
|---|---|---|---|---|
| 2025-11-18 | Gilbert Cisneros | Buy | $1K – $15K | PDF ↗ |
| 2025-10-17 | Gilbert Cisneros | Buy | $1K – $15K | PDF ↗ |
| 2025-09-12 | Gilbert Cisneros | Buy | $1K – $15K | PDF ↗ |
Who owns MDB
27 super-investors · 2025Q4
Tracked stake
13.23M
shares
Combined value
$4.77B
% of shares outstanding
—
shares-out unknown
Quarter action mix
New6Added11Trim10
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | D.E. Shaw & Co. | 1.46M | $612M |
| 2 | ValueAct Holdings | 1.41M | $590M |
| 3 | Norges Bank Norway SWF | 1.37M | $575M |
| 4 | Ken Griffin Citadel Advisors | 1.13M | $475M |
| 5 | Ken Griffin Citadel Advisors | 969.7K | $407M |
| 6 | Ken Griffin Citadel Advisors | 861.7K | $362M |
| 7 | Steve Cohen Point72 | 713.0K | $299M |
| 8 | Whale Rock Capital | 600.0K | $252M |
| 9 | AQR Capital Management | 576.2K | $242M |
| 10 | D.E. Shaw & Co. | 398.4K | $167M |
| 11 | Izzy Englander Millennium Mgmt | 337.0K | $141M |
| 12 | Baillie Gifford & Co | 267.3K | $112M |
| 13 | Two Sigma Investments | 247.8K | $104M |
| 14 | Wellington Management | 220.3K | $92M |
| 15 | Izzy Englander Millennium Mgmt | 166.8K | $70M |
| 16 | Steve Cohen Point72 | 136.3K | $57M |
| 17 | Paul Tudor Jones Tudor Investment | 109.2K | $46M |
| 18 | Steve Cohen Point72 | 105.7K | $44M |
| 19 | Izzy Englander Millennium Mgmt | 101.4K | $43M |
| 20 | D.E. Shaw & Co. | 91.2K | $38M |
| 21 | Paul Tudor Jones Tudor Investment | 30.0K | $13M |
| 22 | George Soros Soros Fund Mgmt | 28.4K | $12M |
| 23 | Paul Tudor Jones Tudor Investment | 27.5K | $12M |
| 24 | Two Sigma Investments | 8.0K | $3M |
| 25 | Two Sigma Investments | 4.0K | $2M |
| 26 | T. Rowe Price | 1.86M | $783K |
| 27 | Ray Dalio Bridgewater Associates | 560 | $235K |
Recent moves
20 transactions
- −711,400 · 2025Q4
- −75,635 · 2025Q4
- −341,000 · 2025Q4
- −17,710 · 2025Q4
- +30,000 · 2025Q4
- −68,500 · 2025Q4
- +169,346 · 2025Q4
- +115,340 · 2025Q4
- TRIMT. Rowe Price−88,290 · 2025Q4
- +52,504 · 2025Q4
- +160,355 · 2025Q4
- −2,496 · 2025Q4
- −619,513 · 2025Q4
- +47,870 · 2025Q4
- −136,932 · 2025Q4
- +560 · 2025Q4
- −7,145 · 2025Q4
- −92,900 · 2025Q4
- +1,369,632 · 2025Q4
- +267,331 · 2025Q4
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