PC Connection, Inc.
US ˙ NasdaqGS ˙ US69318J1007

SecurityCNXN / PC Connection, Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership10,943 shares
Latest Disclosed Value $ 632,064
Sei Investments Co ownership in CNXN / PC Connection, Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 10,943 shares of PC Connection, Inc. (US:CNXN) valued at $632,068 USD as of December 31, 2025. The entity filed a previous 13F-HR on August 14, 2025 disclosing 0 shares of PC Connection, Inc.. The current value of the position is $789,537 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-02-13 2025-12-31 13F PC CONNECTION COM 69318J100 10,943 10,943 632 0.0006
2025-08-14 2025-06-30 13F PC CONNECTION COM 69318J100 0 -22,618 -100.00 0 -100.00
2025-05-13 2025-03-31 13F PC CONNECTION COM 69318J100 22,618 0 0.00 1,567 0.00 0.0020
2025-02-11 2024-12-31 13F PC CONNECTION COM 69318J100 22,618 -3,491 -13.37 1,567 -20.47 0.0020
2024-11-12 2024-09-30 13F PC CONNECTION COM 69318J100 26,109 17,110 190.13 1,969 241.25 0.0026
2024-08-13 2024-06-30 13F PC CONNECTION COM 69318J100 8,999 8,999 578 0.0008
2024-05-07 2024-03-31 13F PC CONNECTION COM 69318J100 0 -4,476 -100.00 0 -100.00
2024-02-14 2023-12-31 13F PC CONNECTION COM 69318J100 4,476 0 0.00 301 26.05 0.0005
2023-11-14 2023-09-30 13F PC CONNECTION COM 69318J100 4,476 4,476 239 0.0004
2023-02-10 2022-12-31 13F PC CONNECTION COM 69318J100 0 -4,579 -100.00 0 -100.00
2022-11-14 2022-09-30 13F PC CONNECTION COM 69318J100 4,579 -1,600 -25.89 206 -24.26 0.0005
2022-08-15 2022-06-30 13F PC CONNECTION COM 69318J100 6,179 0 0.00 272 -16.05 0.0006
2022-05-13 2022-03-31 13F PC CONNECTION COM 69318J100 6,179 -3,000 -32.68 324 -18.18 0.0007
2022-02-14 2021-12-31 13F PC CONNECTION COM 69318J100 9,179 1,400 18.00 396 15.45 0.0007
2021-11-12 2021-09-30 13F PC CONNECTION COM 69318J100 7,779 0 0.00 343 -4.72 0.0007
2021-08-06 2021-06-30 13F PC CONNECTION COM 69318J100 7,779 0 0.00 360 -0.28 0.0008
2021-05-12 2021-03-31 13F PC CONNECTION COM 69318J100 7,779 -3,752 -32.54 361 -33.76 0.0009
2021-02-08 2020-12-31 13F PC CONNECTION COM 69318J100 11,531 -6,422 -35.77 545 -26.05 0.0014
2020-12-04 2020-09-30 13F/A-1 PC CONNECTION COM 69318J100 17,953 -9,011 -33.42 737 -41.04 0.0021
2020-11-06 2020-09-30 13F PC CONNECTION COM 69318J100 17,953 -9,011 737 1,774.5321
2020-08-17 2020-06-30 13F/A-1 PC CONNECTION COM 69318J100 26,964 -1,225 -4.35 1,250 7.57 0.0039
2020-08-11 2020-06-30 13F PC CONNECTION COM 69318J100 27,411 -778 1,357 3,680.9347
2020-05-14 2020-03-31 13F PC CONNECTION COM 69318J100 28,189 705 2.57 1,162 -14.87 0.0043
2020-02-06 2019-12-31 13F PC CONNECTION COM 69318J100 27,484 -4,429 -13.88 1,365 10.53 0.0041
2019-11-12 2019-09-30 13F PC CONNECTION COM 69318J100 31,913 973 3.14 1,235 14.88 0.0032
2019-08-14 2019-06-30 13F PC CONNECTION COM 69318J100 30,940 -2,583 -7.71 1,075 -12.10 0.0035
2019-05-15 2019-03-31 13F PC CONNECTION COM 69318J100 33,523 20,680 161.02 1,223 147.07 0.0041
2019-02-13 2018-12-31 13F PC CONNECTION COM 69318J100 12,843 284 2.26 495 1.43 0.0018
2018-11-08 2018-09-30 13F PC CONNECTION COM 69318J100 12,559 12,559 488 0.0018
2018-05-11 2018-03-31 13F PC CONNECTION COM 69318J100 0 -159 -100.00 0 -100.00
2018-02-08 2017-12-31 13F PC CONNECTION COM 69318J100 159 159 4 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.