Skip to main content

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC

Position in MA — Mastercard Inc

CIK 1644956 CHICAGO, IL

Position in MA

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$471,487,368
-$58,477,510 QoQ
Shares Held
918,005
-13.4% QoQ
Ownership
0.105%
of shares outstanding
% of Portfolio
1.43%
of 13F equity value
Holder Rank
#112
of 3,580 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 88% Shared 0% None 12%

Common Shares in MA Over Time

Shares Held

Position Value (USD)

Position in Credit Services

Financial Services · as of Jun 30, 2026

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC holds $510,799,428 across 3 Credit Services names. MA ranks #1 (92.3% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 MA
Mastercard Inc
This page
918,005 $471,487,368

All Filings in MA

Export CSV
26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $471,487,368 918,005
2026-03-31 $529,964,878 1,060,651
2025-12-31 $619,374,543 1,084,947
2025-09-30 $628,731,289 1,105,345
2025-06-30 $685,715,714 1,220,265
2025-03-31 $666,137,909 1,215,314
2024-12-31 $756,367,254 1,436,404
2024-09-30 $705,995,242 1,429,719
2024-06-30 $662,123,368 1,500,869
2024-03-31 $706,488,713 1,467,053
2023-12-31 $575,153,853 1,348,512
2023-09-30 $507,249,789 1,281,225
2023-06-30 $483,565,889 1,229,509
2023-03-31 $455,246,250 1,252,707
2022-12-31 $425,766,871 1,224,418
2022-09-30 $361,054,932 1,269,800
2022-06-30 $386,893,630 1,226,365
2022-03-31 $355,607,752 995,041
2021-12-31 $337,765,471 940,013
2021-09-30 $283,870,289 816,470
2021-06-30 $281,491,326 771,019
2021-03-31 $268,841,961 755,068
2020-12-31 $220,421,158 617,530
2020-09-30 $236,170,488 698,378
2020-06-30 $227,285,369 768,635
2020-03-31 $146,796,495 607,702