William Blair & Company’s MongoDB MDB Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $70M | Sell |
208,408
-62,574
| -23% | -$18.8M | 0.18% | 116 |
|
|
2026
Q1 | $66.3M | Sell |
270,982
-22,904
| -8% | -$7.66M | 0.19% | 116 |
|
|
2025
Q4 | $123M | Sell |
293,886
-6,124
| -2% | -$2.23M | 0.33% | 72 |
|
|
2025
Q3 | $93.1M | Sell |
300,010
-61,122
| -17% | -$15.7M | 0.25% | 99 |
|
|
2025
Q2 | $75.8M | Sell |
361,132
-85,893
| -19% | -$15.9M | 0.21% | 108 |
|
|
2025
Q1 | $78.4M | Buy |
447,025
+76,568
| +21% | +$18.7M | 0.24% | 101 |
|
|
2024
Q4 | $86.2M | Buy |
370,457
+72,648
| +24% | +$20.5M | 0.25% | 95 |
|
|
2024
Q3 | $80.5M | Sell |
297,809
-18,021
| -6% | -$4.68M | 0.24% | 96 |
|
|
2024
Q2 | $78.9M | Buy |
315,830
+44,608
| +16% | +$14.1M | 0.24% | 93 |
|
|
2024
Q1 | $97.3M | Buy |
271,222
+10,873
| +4% | +$4.44M | 0.31% | 78 |
|
|
2023
Q4 | $106M | Buy |
260,349
+10,263
| +4% | +$3.89M | 0.36% | 69 |
|
|
2023
Q3 | $86.5M | Sell |
250,086
-10,391
| -4% | -$3.94M | 0.33% | 74 |
|
|
2023
Q2 | $107M | Buy |
260,477
+12,746
| +5% | +$3.72M | 0.39% | 64 |
|
|
2023
Q1 | $57.8M | Buy |
247,731
+71,273
| +40% | +$15M | 0.23% | 99 |
|
|
2022
Q4 | $34.7M | Buy |
176,458
+21,170
| +14% | +$3.77M | 0.15% | 134 |
|
|
2022
Q3 | $30.8M | Buy |
155,288
+842
| +0.5% | +$246K | 0.14% | 140 |
|
|
2022
Q2 | $40.1M | Buy |
154,446
+21,641
| +16% | +$6.77M | 0.18% | 125 |
|
|
2022
Q1 | $58.9M | Sell |
132,805
-57,895
| -30% | -$22.6M | 0.21% | 112 |
|
|
2021
Q4 | $101M | Sell |
190,700
-1,255
| -0.7% | -$643K | 0.32% | 77 |
|
|
2021
Q3 | $90.5M | Buy |
191,955
+4,356
| +2% | +$1.75M | 0.31% | 76 |
|
|
2021
Q2 | $67.8M | Buy |
187,599
+18,096
| +11% | +$5.6M | 0.24% | 100 |
|
|
2021
Q1 | $45.3M | Buy |
169,503
+447
| +0.3% | +$158K | 0.17% | 139 |
|
|
2020
Q4 | $60.7M | Buy |
169,056
+1,016
| +0.6% | +$284K | 0.22% | 100 |
|
|
2020
Q3 | $38.9M | Buy |
168,040
+9,645
| +6% | +$2.09M | 0.17% | 129 |
|
|
2020
Q2 | $35.9M | Buy |
158,395
+153,388
| +3,063% | +$28.4M | 0.17% | 128 |
|
|
2020
Q1 | $684K | Buy |
5,007
+3,352
| +203% | +$495K | ﹤0.01% | 782 |
|
|
2019
Q4 | $218K | Buy |
+1,655
| New | +$217K | ﹤0.01% | 1278 |
|
|
2019
Q2 | – | Sell |
-1,885
| Closed | -$277K | – | 1755 |
|
|
2019
Q1 | $277K | Buy |
+1,885
| New | +$193K | ﹤0.01% | 1170 |
|
|
2018
Q4 | – | Sell |
-3,300
| Closed | -$269K | – | 1739 |
|
|
2018
Q3 | $269K | Buy |
+3,300
| New | +$220K | ﹤0.01% | 1186 |
|
Other funds holding MDB
William Blair & Company's MDB Position: Q2 2026 in Review
William Blair & Company reduced its MongoDB (MDB) stake by 23% in Q2 2026, selling an estimated $18.8M and leaving 208,408 shares worth $70M. The position accounts for 0.18% of the portfolio, ranked #116.
William Blair & Company first reported a position in MDB in Q3 2018 and has held it in 29 quarters since. The position peaked at $123M in Q4 2025. 870 funds tracked by Wall St. Rank hold MDB as of Q2 2026.
- William Blair & Company held 208,408 shares of MongoDB worth $70M as of Q2 2026.
- William Blair & Company sold 62,574 MongoDB shares in Q2 2026, an estimated $18.8M.
- MongoDB made up 0.18% of William Blair & Company's portfolio in Q2 2026, its #116 holding.
- William Blair & Company first reported a position in MongoDB in Q3 2018 and has held it in 29 quarters since.
- William Blair & Company's MongoDB position peaked at $123M in Q4 2025.
- 870 funds tracked by Wall St. Rank held MongoDB as of Q2 2026.
Based on William Blair & Company's 13F filing for Q2 2026, filed 11 Aug 2026.