Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in CNXN held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 2.2M | $129.9M | -1.1% | 8.810% | 0.00% |
| 2 | DIMENSIONAL FUND ADVISORS LP | 1.5M | $89.2M | +0.3% | 6.054% | 0.02% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 509K | $29.7M | — | 2.017% | 0.00% |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | 491K | $28.7M | — | 1.946% | 0.00% |
| 5 | STATE STREET CORP | 450K | $26.3M | +0.6% | 1.785% | 0.00% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 391K | $22.9M | +3.7% | 1.551% | 0.00% |
| 7 | BROWN ADVISORY INC | 341K | $19.9M | +24.8% | 1.351% | 0.03% |
| 8 | MORGAN STANLEY | 222K | $13.0M | +1.9% | 0.882% | 0.00% |
| 9 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 220K | $12.9M | -6.0% | 0.873% | 0.00% |
| 10 | Invesco Ltd. | 218K | $12.7M | -0.6% | 0.864% | 0.00% |
| 11 | GOLDMAN SACHS GROUP INC | 216K | $12.7M | +44.1% | 0.858% | 0.00% |
| 12 | NORTHERN TRUST CORP | 203K | $11.9M | +1.3% | 0.804% | 0.00% |
| 13 | TWO SIGMA INVESTMENTS, LP | 184K | $10.7M | +71.9% | 0.729% | 0.01% |
| 14 | AMERICAN CENTURY COMPANIES INC | 140K | $8.2M | -28.3% | 0.556% | 0.00% |
| 15 | Bank of New York Mellon Corp | 138K | $8.1M | +1.2% | 0.548% | 0.00% |
| 16 | Qube Research & Technologies Ltd | 128K | $7.5M | -16.9% | 0.507% | 0.01% |
| 17 | AQR CAPITAL MANAGEMENT LLC | 116K | $6.8M | +2.4% | 0.460% | 0.00% |
| 18 | JACOBS LEVY EQUITY MANAGEMENT, INC | 112K | $6.6M | -1.4% | 0.445% | 0.03% |
| 19 | FMR LLC | 105K | $6.2M | +18.4% | 0.418% | 0.00% |
| 20 | TEACHER RETIREMENT SYSTEM OF TEXAS | 104K | $6.1M | -9.8% | 0.411% | 0.03% |
| 21 | RHUMBLINE ADVISERS | 98K | $5.7M | +17.4% | 0.388% | 0.00% |
| 22 | OBERWEIS ASSET MANAGEMENT INC/ | 96K | $5.6M | — | 0.382% | 0.17% |
| 23 | UBS Group AG | 95K | $5.6M | +6.3% | 0.379% | 0.00% |
| 24 | MILLENNIUM MANAGEMENT LLC | 87K | $5.1M | -41.0% | 0.343% | 0.00% |
| 25 | DENALI ADVISORS LLC | 83K | $4.9M | +23.8% | 0.330% | 0.54% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in CNXN — a direct measure of their conviction.
Filings activity in CNXN during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 183 | +1.1% | 32.39% | +0.77 pp | $595M | +2.4% |
| Q4 2025 | 181 | 3.2% | 31.62% | 2.60 pp | $581M | 7.6% |
| Q3 2025 | 187 | +4.5% | 34.22% | 2.74 pp | $629M | 7.4% |
| Q2 2025 | 179 | +5.3% | 36.96% | +1.47 pp | $679M | +4.1% |
| Q1 2025 | 170 | +4.3% | 35.49% | 5.83 pp | $652M | 14% |
| Q4 2024 | 163 | 2.4% | 41.32% | 3.64 pp | $759M | 8.1% |
| Q3 2024 | 167 | +7.1% | 44.96% | +6.11 pp | $826M | +16% |
| Q2 2024 | 156 | — | 38.85% | — | $714M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying CNXN stock.
Based on Q1 2026 13F filings, institutional ownership of PC Connection, Inc. stands at 32.4%, held across 183 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of CNXN, with approximately 2,221,652 shares worth $0.13B as of Q1 2026.
Yes — 2 widely-followed marquee investors appear among the top 25 institutional holders of CNXN, including TWO SIGMA INVESTMENTS, LP, MILLENNIUM MANAGEMENT LLC.
Our composite Smart Money Score for CNXN is 61 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
32 institutions opened new positions in CNXN during Q1 2026, while 30 fully exited. 92 added to existing positions and 58 trimmed.
CNXN institutional ownership rose by 0.77 percentage points quarter-over-quarter, with a net change of +2 holders.
The top 10 institutions account for 64.7% of all reported 13F value in CNXN, and the top 25 account for 83.5%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
PC Connection, Inc. (CNXN) Institutional Ownership