William Blair Investment Management’s Mastercard MA Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $471M | Sell |
918,005
-142,646
| -13% | -$71.1M | 1.42% | 9 |
|
|
2026
Q1 | $530M | Sell |
1,060,651
-24,296
| -2% | -$12.8M | 1.75% | 9 |
|
|
2025
Q4 | $619M | Sell |
1,084,947
-20,398
| -2% | -$11.4M | 1.73% | 9 |
|
|
2025
Q3 | $629M | Sell |
1,105,345
-114,920
| -9% | -$66M | 1.63% | 8 |
|
|
2025
Q2 | $686M | Buy |
1,220,265
+4,951
| +0.4% | +$2.74M | 1.82% | 8 |
|
|
2025
Q1 | $666M | Sell |
1,215,314
-221,090
| -15% | -$120M | 1.87% | 7 |
|
|
2024
Q4 | $756M | Buy |
1,436,404
+6,685
| +0.5% | +$3.46M | 1.85% | 7 |
|
|
2024
Q3 | $706M | Sell |
1,429,719
-71,150
| -5% | -$33.1M | 1.74% | 7 |
|
|
2024
Q2 | $662M | Buy |
1,500,869
+33,816
| +2% | +$15.4M | 1.74% | 7 |
|
|
2024
Q1 | $706M | Buy |
1,467,053
+118,541
| +9% | +$54.2M | 1.83% | 6 |
|
|
2023
Q4 | $575M | Buy |
1,348,512
+67,287
| +5% | +$27M | 1.67% | 6 |
|
|
2023
Q3 | $507M | Buy |
1,281,225
+51,716
| +4% | +$20.8M | 1.69% | 6 |
|
|
2023
Q2 | $484M | Sell |
1,229,509
-23,198
| -2% | -$8.7M | 1.55% | 6 |
|
|
2023
Q1 | $455M | Buy |
1,252,707
+28,289
| +2% | +$10.3M | 1.59% | 7 |
|
|
2022
Q4 | $426M | Sell |
1,224,418
-45,382
| -4% | -$14.9M | 1.63% | 4 |
|
|
2022
Q3 | $361M | Buy |
1,269,800
+43,435
| +4% | +$14.4M | 1.43% | 6 |
|
|
2022
Q2 | $387M | Buy |
1,226,365
+231,324
| +23% | +$79.7M | 1.43% | 5 |
|
|
2022
Q1 | $356M | Buy |
995,041
+55,028
| +6% | +$19.8M | 1.06% | 10 |
|
|
2021
Q4 | $338M | Buy |
940,013
+123,543
| +15% | +$42.7M | 0.91% | 17 |
|
|
2021
Q3 | $284M | Buy |
816,470
+45,451
| +6% | +$16.5M | 0.8% | 30 |
|
|
2021
Q2 | $281M | Buy |
771,019
+15,951
| +2% | +$5.93M | 0.88% | 33 |
|
|
2021
Q1 | $269M | Buy |
755,068
+137,538
| +22% | +$48M | 0.87% | 26 |
|
|
2020
Q4 | $220M | Sell |
617,530
-80,848
| -12% | -$26.9M | 0.73% | 42 |
|
|
2020
Q3 | $236M | Sell |
698,378
-70,257
| -9% | -$22.8M | 0.92% | 27 |
|
|
2020
Q2 | $227M | Buy |
768,635
+160,933
| +26% | +$45.4M | 0.93% | 25 |
|
|
2020
Q1 | $147M | Buy |
607,702
+56,269
| +10% | +$16.7M | 0.71% | 43 |
|
|
2019
Q4 | $165M | Buy |
551,433
+18,099
| +3% | +$5.1M | 0.66% | 47 |
|
|
2019
Q3 | $145M | Sell |
533,334
-53,993
| -9% | -$14.9M | 0.62% | 55 |
|
|
2019
Q2 | $155M | Buy |
587,327
+10,891
| +2% | +$2.73M | 0.65% | 52 |
|
|
2019
Q1 | $136M | Buy |
576,436
+5,997
| +1% | +$1.29M | 0.57% | 56 |
|
|
2018
Q4 | $108M | Sell |
570,439
-288,245
| -34% | -$57.2M | 0.53% | 61 |
|
|
2018
Q3 | $191M | Sell |
858,684
-47,612
| -5% | -$9.93M | 0.66% | 46 |
|
|
2018
Q2 | $178M | Sell |
906,296
-150,172
| -14% | -$28.2M | 0.66% | 39 |
|
|
2018
Q1 | $185M | Sell |
1,056,468
-174,700
| -14% | -$29.9M | 0.71% | 36 |
|
|
2017
Q4 | $186M | Sell |
1,231,168
-530,276
| -30% | -$78.9M | 0.72% | 33 |
|
|
2017
Q3 | $249M | Sell |
1,761,444
-268,431
| -13% | -$35.5M | 0.89% | 27 |
|
|
2017
Q2 | $247M | Sell |
2,029,875
-65,235
| -3% | -$7.74M | 0.9% | 30 |
|
|
2017
Q1 | $236M | Sell |
2,095,110
-73,238
| -3% | -$8.03M | 0.89% | 30 |
|
|
2016
Q4 | $224M | Sell |
2,168,348
-64,951
| -3% | -$6.72M | 0.89% | 26 |
|
|
2016
Q3 | $227M | Buy |
2,233,299
+196,491
| +10% | +$18.8M | 0.86% | 29 |
|
|
2016
Q2 | $179M | Sell |
2,036,808
-196,377
| -9% | -$18.7M | 0.71% | 45 |
|
|
2016
Q1 | $211M | Sell |
2,233,185
-285,452
| -11% | -$25.2M | 0.84% | 32 |
|
|
2015
Q4 | $245M | Buy |
2,518,637
+274,552
| +12% | +$26.9M | 0.99% | 26 |
|
|
2015
Q3 | $202M | Buy |
+2,244,085
| New | +$211M | 0.41% | 56 |
|
Other funds holding MA
William Blair Investment Management's MA Position: Q2 2026 in Review
William Blair Investment Management reduced its Mastercard (MA) stake by 13% in Q2 2026, selling an estimated $71.1M and leaving 918,005 shares worth $471M. The position accounts for 1.42% of the portfolio, ranked #9.
William Blair Investment Management first reported a position in MA in Q3 2015 and has held it in 44 quarters since. The position peaked at $756M in Q4 2024. 3,588 funds tracked by Wall St. Rank hold MA as of Q2 2026.
- William Blair Investment Management held 918,005 shares of Mastercard worth $471M as of Q2 2026.
- William Blair Investment Management sold 142,646 Mastercard shares in Q2 2026, an estimated $71.1M.
- Mastercard made up 1.42% of William Blair Investment Management's portfolio in Q2 2026, its #9 holding.
- William Blair Investment Management first reported a position in Mastercard in Q3 2015 and has held it in 44 quarters since.
- William Blair Investment Management's Mastercard position peaked at $756M in Q4 2024.
- 3,588 funds tracked by Wall St. Rank held Mastercard as of Q2 2026.
Based on William Blair Investment Management's 13F filing for Q2 2026, filed 12 Aug 2026.