UniFirst Corporation
US ˙ NYSE ˙ US9047081040

SecurityUNF / UniFirst Corporation
InstitutionSei Investments Co
Latest Disclosed Ownership17,681 shares
Latest Disclosed Value $ 3,409,350
Sei Investments Co reports 2.30% decrease in ownership of UNF / UniFirst Corporation

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 17,681 shares of UniFirst Corporation (US:UNF) valued at $3,410,665 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 18,097 shares of UniFirst Corporation. This represents a change in shares of -2.30% during the quarter. The current value of the position is $4,678,216 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 UNIFIRST CORP MASS COM 904708104 17,681 -416 -2.30 3,409 12.66 0.0034
2025-11-13 2025-09-30 13F UNIFIRST CORP MASS COM 904708104 18,097 -1,462 -7.47 3,026 -17.77 0.0033
2025-08-14 2025-06-30 13F UNIFIRST CORP MASS COM 904708104 19,559 66 0.34 3,681 8.49 0.0043
2025-05-14 2025-03-31 13F/A-1 UNIFIRST CORP MASS COM 904708104 19,493 546 2.88 3,392 4.66 0.0044
2025-05-13 2025-03-31 13F UNIFIRST CORP MASS COM 904708104 21,479 2,532 3,713 0.0040
2025-02-11 2024-12-31 13F UNIFIRST CORP MASS COM 904708104 18,947 1,136 6.38 3,242 -8.37 0.0042
2024-11-12 2024-09-30 13F UNIFIRST CORP MASS COM 904708104 17,811 -17 -0.10 3,537 15.66 0.0046
2024-08-13 2024-06-30 13F UNIFIRST CORP MASS COM 904708104 17,828 -84 -0.47 3,059 -1.51 0.0043
2024-05-07 2024-03-31 13F UNIFIRST CORP MASS COM 904708104 17,912 1,634 10.04 3,106 4.33 0.0046
2024-02-14 2023-12-31 13F UNIFIRST CORP MASS COM 904708104 16,278 1,099 7.24 2,977 20.29 0.0048
2023-11-14 2023-09-30 13F UNIFIRST CORP MASS COM 904708104 15,179 -291 -1.88 2,475 3.13 0.0044
2023-08-11 2023-06-30 13F UNIFIRST CORP MASS COM 904708104 15,470 97 0.63 2,400 -11.41 0.0042
2023-05-12 2023-03-31 13F UNIFIRST CORP MASS COM 904708104 15,373 9,922 182.02 2,708 157.66 0.0050
2023-02-10 2022-12-31 13F UNIFIRST CORP MASS COM 904708104 5,451 -14,379 -72.51 1,052 -68.50 0.0023
2022-11-14 2022-09-30 13F UNIFIRST CORP MASS COM 904708104 19,830 -8,621 -30.30 3,336 -33.03 0.0074
2022-08-15 2022-06-30 13F UNIFIRST CORP MASS COM 904708104 28,451 -8,114 -22.19 4,981 -26.66 0.0108
2022-05-13 2022-03-31 13F UNIFIRST CORP MASS COM 904708104 36,565 18,026 97.23 6,792 73.44 0.0137
2022-02-14 2021-12-31 13F UNIFIRST CORP MASS COM 904708104 18,539 128 0.70 3,916 0.23 0.0073
2021-11-12 2021-09-30 13F UNIFIRST CORP MASS COM 904708104 18,411 -156 -0.84 3,907 -10.18 0.0082
2021-08-06 2021-06-30 13F UNIFIRST CORP MASS COM 904708104 18,567 -12,287 -39.82 4,350 -36.77 0.0096
2021-05-12 2021-03-31 13F UNIFIRST CORP MASS COM 904708104 30,854 -479 -1.53 6,880 3.93 0.0173
2021-02-08 2020-12-31 13F UNIFIRST CORP MASS COM 904708104 31,333 -11,907 -27.54 6,620 -19.14 0.0171
2020-12-04 2020-09-30 13F/A-1 UNIFIRST CORP MASS COM 904708104 43,240 -10,935 -20.18 8,187 -15.56 0.0237
2020-11-06 2020-09-30 13F UNIFIRST CORP MASS COM 904708104 43,493 -10,682 8,235 19,828.0490
2020-08-17 2020-06-30 13F/A-1 UNIFIRST CORP MASS COM 904708104 54,175 3,163 6.20 9,696 25.81 0.0301
2020-08-11 2020-06-30 13F UNIFIRST CORP MASS COM 904708104 48,119 -2,893 9,536 25,866.9076
2020-05-14 2020-03-31 13F UNIFIRST CORP MASS COM 904708104 51,012 2,858 5.94 7,707 -20.76 0.0283
2020-02-06 2019-12-31 13F UNIFIRST CORP MASS COM 904708104 48,154 32,643 210.45 9,726 221.41 0.0290
2019-11-12 2019-09-30 13F UNIFIRST CORP MASS COM 904708104 15,511 -399 -2.51 3,026 0.87 0.0077
2019-08-14 2019-06-30 13F UNIFIRST CORP MASS COM 904708104 15,910 6,592 70.74 3,000 109.79 0.0098
2019-05-15 2019-03-31 13F UNIFIRST CORP MASS COM 904708104 9,318 -427 -4.38 1,430 0.78 0.0048
2019-02-13 2018-12-31 13F UNIFIRST CORP MASS COM 904708104 9,745 8,832 967.36 1,419 815.48 0.0051
2018-11-08 2018-09-30 13F UNIFIRST CORP MASS COM 904708104 913 -772 -45.82 155 -47.99 0.0006
2018-08-03 2018-06-30 13F UNIFIRST CORP MASS COM 904708104 1,685 166 10.93 298 21.63 0.0010
2018-05-11 2018-03-31 13F UNIFIRST CORP MASS COM 904708104 1,519 301 24.71 245 21.89 0.0009
2018-02-08 2017-12-31 13F UNIFIRST CORP MASS COM 904708104 1,218 150 14.04 201 24.07 0.0007
2017-11-06 2017-09-30 13F UNIFIRST CORP MASS COM 904708104 1,068 1,064 26,600.00 162 16,100.00 0.0006
2017-07-31 2017-06-30 13F UNIFIRST CORP MASS COM 904708104 4 0 0.00 1 0.00 0.0000
2017-05-05 2017-03-31 13F UNIFIRST CORP MASS COM 904708104 4 -3 -42.86 1 0.00 0.0000
2017-02-02 2016-12-31 13F UNIFIRST CORP MASS COM 904708104 7 -168 -96.00 1 -95.65 0.0000
2016-11-04 2016-09-30 13F UNIFIRST CORP MASS COM 904708104 175 -3 -1.69 23 9.52 0.0001
2016-08-11 2016-06-30 13F UNIFIRST CORP MASS COM 904708104 178 178 21 0.0001
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.