Parsons Corporation
US ˙ NYSE ˙ US70202L1026

SecurityPSN / Parsons Corporation
InstitutionSei Investments Co
Latest Disclosed Ownership203,545 shares
Latest Disclosed Value $ 12,579,159
Sei Investments Co reports 31.37% decrease in ownership of PSN / Parsons Corporation

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 203,545 shares of Parsons Corporation (US:PSN) valued at $12,579,081 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 296,567 shares of Parsons Corporation. This represents a change in shares of -31.37% during the quarter. The current value of the position is $12,342,969 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 PARSONS CORP DEL COM 70202L102 203,545 -93,022 -31.37 12,579 -48.85 0.0124
2025-11-13 2025-09-30 13F PARSONS CORP DEL COM 70202L102 296,567 9,414 3.28 24,591 19.33 0.0264
2025-08-14 2025-06-30 13F PARSONS CORP DEL COM 70202L102 287,153 43,135 17.68 20,609 42.64 0.0239
2025-05-14 2025-03-31 13F/A-1 PARSONS CORP DEL COM 70202L102 244,018 -18,267 -6.96 14,448 -40.29 0.0186
2025-05-13 2025-03-31 13F PARSONS CORP DEL COM 70202L102 229,470 -32,815 20,228 0.0220
2025-02-11 2024-12-31 13F PARSONS CORP DEL COM 70202L102 262,285 29,025 12.44 24,196 0.05 0.0311
2024-11-12 2024-09-30 13F PARSONS CORP DEL COM 70202L102 233,260 35,791 18.12 24,185 49.70 0.0314
2024-08-13 2024-06-30 13F PARSONS CORP DEL COM 70202L102 197,469 5,348 2.78 16,155 1.37 0.0229
2024-05-07 2024-03-31 13F PARSONS CORP DEL COM 70202L102 192,121 36,152 23.18 15,936 62.94 0.0234
2024-02-14 2023-12-31 13F PARSONS CORP DEL COM 70202L102 155,969 86,300 123.87 9,781 158.32 0.0157
2023-11-14 2023-09-30 13F PARSONS CORP DEL COM 70202L102 69,669 17,494 33.53 3,786 50.78 0.0068
2023-08-11 2023-06-30 13F PARSONS CORP DEL COM 70202L102 52,175 15,236 41.25 2,512 52.00 0.0044
2023-05-12 2023-03-31 13F PARSONS CORP DEL COM 70202L102 36,939 6,887 22.92 1,653 18.85 0.0031
2023-02-10 2022-12-31 13F PARSONS CORP DEL COM 70202L102 30,052 5,979 24.84 1,390 47.25 0.0031
2022-11-14 2022-09-30 13F PARSONS CORP DEL COM 70202L102 24,073 -1,877 -7.23 944 -9.84 0.0021
2022-08-15 2022-06-30 13F PARSONS CORP DEL COM 70202L102 25,950 10,451 67.43 1,047 75.67 0.0023
2022-05-13 2022-03-31 13F PARSONS CORP DEL COM 70202L102 15,499 1,572 11.29 596 28.17 0.0012
2022-02-14 2021-12-31 13F PARSONS CORP DEL COM 70202L102 13,927 1,683 13.75 465 15.38 0.0009
2021-11-12 2021-09-30 13F PARSONS CORP DEL COM 70202L102 12,244 -32,829 -72.84 403 -77.31 0.0008
2021-08-06 2021-06-30 13F PARSONS CORP DEL COM 70202L102 45,073 16,540 57.97 1,776 53.90 0.0039
2021-05-12 2021-03-31 13F PARSONS COM 70202L102 28,533 28,533 1,154 0.0029
2021-02-08 2020-12-31 13F PARSONS COM 70202L102 0 -10,345 -100.00 0 -100.00
2020-12-04 2020-09-30 13F/A-1 PARSONS COM 70202L102 10,345 0 0.00 347 -7.47 0.0010
2020-11-06 2020-09-30 13F PARSONS COM 70202L102 10,345 0 347 835.4988
2020-08-17 2020-06-30 13F/A-1 PARSONS COM 70202L102 10,345 -5,296 -33.86 375 -25.00 0.0012
2020-08-11 2020-06-30 13F PARSONS COM 70202L102 5,305 -10,336 219 594.0492
2020-05-14 2020-03-31 13F PARSONS COM 70202L102 15,641 7,066 82.40 500 36.99 0.0018
2020-02-06 2019-12-31 13F PARSONS COM 70202L102 8,575 -230 -2.61 365 21.67 0.0011
2019-11-12 2019-09-30 13F PARSONS COM 70202L102 8,805 971 12.39 300 -0.33 0.0008
2019-08-14 2019-06-30 13F PARSONS COM 70202L102 7,834 7,834 301 0.0010
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.