MERRIMACK, NH
PC CONNECTION INCCNXN— Latest position per institution from SEC 13F filings
15
Institutional holders
11.64M
Total shares held
696.61M
Estimated value
582.14K
Avg. position size
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
2.45M
Value
157.13M
Filed
Jun 30, 2024
BLACKROCK, INC.
CIK 2012383
Shares
2.22M
Value
129.88M
Filed
Mar 31, 2026
DIMENSIONAL FUND ADVISORS LP
CIK 354204
Shares
1.53M
Value
89.24M
Filed
Mar 31, 2026
VANGUARD GROUP INC
CIK 102909
Shares
1.08M
Value
62.39M
Filed
Dec 31, 2025
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
508.64K
Value
29.73M
Filed
Mar 31, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
490.68K
Value
28.68M
Filed
Mar 31, 2026
STATE STREET CORP
CIK 93751
Shares
450.12K
Value
26.31M
Filed
Mar 31, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
390.99K
Value
22.86M
Filed
Mar 31, 2026
MAWER INVESTMENT MANAGEMENT LTD.
CIK 1538449
Shares
359.66K
Value
23.09M
Filed
Jun 30, 2024
BROWN ADVISORY INC
CIK 1345929
Shares
340.71K
Value
19.92M
Filed
Mar 31, 2026
MORGAN STANLEY
CIK 895421
Shares
222.47K
Value
13.01M
Filed
Mar 31, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 884546
Shares
220.04K
Value
12.86M
Filed
Mar 31, 2026
INVESCO LTD.
CIK 914208
Shares
217.84K
Value
12.74M
Filed
Mar 31, 2026
GOLDMAN SACHS GROUP INC
CIK 886982
Shares
216.44K
Value
12.65M
Filed
Mar 31, 2026
NORTHERN TRUST CORP
CIK 73124
Shares
202.78K
Value
11.85M
Filed
Mar 31, 2026
TWO SIGMA INVESTMENTS, LP
CIK 1179392
Shares
183.72K
Value
10.74M
Filed
Mar 31, 2026
PACER ADVISORS, INC.
CIK 1616667
Shares
156.48K
Value
9.77M
Filed
Mar 31, 2025
AMERICAN CENTURY COMPANIES INC
CIK 748054
Shares
140.10K
Value
8.19M
Filed
Mar 31, 2026
BANK OF NEW YORK MELLON CORP
CIK 1390777
Shares
138.29K
Value
8.08M
Filed
Mar 31, 2026
QUBE RESEARCH & TECHNOLOGIES LTD
CIK 1729829
Shares
127.91K
Value
7.48M
Filed
Mar 31, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BLACKROCK FINANCE, INC. | 1364742 | 2.45M | 157.13M | Jun 30, 2024 |
| 2 | BLACKROCK, INC. | 2012383 | 2.22M | 129.88M | Mar 31, 2026 |
| 3 | DIMENSIONAL FUND ADVISORS LP | 354204 | 1.53M | 89.24M | Mar 31, 2026 |
| 4 | VANGUARD GROUP INC | 102909 | 1.08M | 62.39M | Dec 31, 2025 |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 508.64K | 29.73M | Mar 31, 2026 |
| 6 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 490.68K | 28.68M | Mar 31, 2026 |
| 7 | STATE STREET CORP | 93751 | 450.12K | 26.31M | Mar 31, 2026 |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 390.99K | 22.86M | Mar 31, 2026 |
| 9 | MAWER INVESTMENT MANAGEMENT LTD. | 1538449 | 359.66K | 23.09M | Jun 30, 2024 |
| 10 | BROWN ADVISORY INC | 1345929 | 340.71K | 19.92M | Mar 31, 2026 |
| 11 | MORGAN STANLEY | 895421 | 222.47K | 13.01M | Mar 31, 2026 |
| 12 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 884546 | 220.04K | 12.86M | Mar 31, 2026 |
| 13 | INVESCO LTD. | 914208 | 217.84K | 12.74M | Mar 31, 2026 |
| 14 | GOLDMAN SACHS GROUP INC | 886982 | 216.44K | 12.65M | Mar 31, 2026 |
| 15 | NORTHERN TRUST CORP | 73124 | 202.78K | 11.85M | Mar 31, 2026 |
| 16 | TWO SIGMA INVESTMENTS, LP | 1179392 | 183.72K | 10.74M | Mar 31, 2026 |
| 17 | PACER ADVISORS, INC. | 1616667 | 156.48K | 9.77M | Mar 31, 2025 |
| 18 | AMERICAN CENTURY COMPANIES INC | 748054 | 140.10K | 8.19M | Mar 31, 2026 |
| 19 | BANK OF NEW YORK MELLON CORP | 1390777 | 138.29K | 8.08M | Mar 31, 2026 |
| 20 | QUBE RESEARCH & TECHNOLOGIES LTD | 1729829 | 127.91K | 7.48M | Mar 31, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.