P.A.M. Transportation Services, Inc.
US ˙ NasdaqGM ˙ US6931491061
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT

SecurityPTSI / P.A.M. Transportation Services, Inc.
InstitutionBlackRock, Inc.
Latest Disclosed Ownership422,852 shares
Latest Disclosed Value $ 3,573,100
BlackRock, Inc. reports 1.56% decrease in ownership of PTSI / P.A.M. Transportation Services, Inc.

On May 13, 2026 - BlackRock, Inc. filed a 13F-HR form disclosing ownership of 422,852 shares of P.A.M. Transportation Services, Inc. (US:PTSI) valued at $3,573,100 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 429,548 shares of P.A.M. Transportation Services, Inc.. This represents a change in shares of -1.56% during the quarter. The current value of the position is $8,338,641 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)
2026-05-13 2026-03-31 13F PAMT COM 693149106 422,852 -6,696 -1.56 3,573 -31.13 0.0000
2026-02-12 2025-12-31 13F PAMT COM 693149106 429,548 -22,717 -5.02 5,189 0.64 0.0001
2025-11-12 2025-09-30 13F PAMT COM 693149106 452,265 -4,518 -0.99 5,156 -12.30 0.0001
2025-08-12 2025-06-30 13F PAMT COM 693149106 456,783 -22,956 -4.79 5,879 0.93 0.0001
2025-05-02 2025-03-31 13F PAMT COM 693149106 479,739 -6,705 -1.38 5,824 -26.90 0.0001
2025-02-07 2024-12-31 13F PAMT COM 693149106 486,444 2,823 0.58 7,968 -10.94 0.0002
2024-11-13 2024-09-30 13F P A M TRANSN SVCS COM 693149106 483,621 14,923 3.18 8,947 9.89 0.0002
2024-08-13 2024-06-30 13F P A M TRANSN SVCS COM 693149106 468,698 -16,556 -3.41 8,141 3.51 0.0002
2024-05-10 2024-03-31 13F P A M TRANSN SVCS COM 693149106 485,254 -18,242 -3.62 7,866 -24.82 0.0002
2024-02-13 2023-12-31 13F P A M TRANSN SVCS COM 693149106 503,496 26,223 5.49 10,463 1.72 0.0003
2023-11-13 2023-09-30 13F P A M TRANSN SVCS COM 693149106 477,273 -9,473 -1.95 10,285 -21.07 0.0003
2023-08-11 2023-06-30 13F P A M TRANSN SVCS COM 693149106 486,746 28,289 6.17 13,030 -0.72 0.0004
2023-05-12 2023-03-31 13F P A M TRANSN SVCS COM 693149106 458,457 -21,490 -4.48 13,126 5.59 0.0004
2023-02-13 2022-12-31 13F P A M TRANSN SVCS COM 693149106 479,947 21,776 4.75 12,431 -12.36 0.0004
2022-11-14 2022-09-30 13F P A M TRANSN SVCS COM 693149106 458,171 -16,435 -3.46 14,183 9.11 0.0005
2022-08-12 2022-06-30 13F P A M TRANSN SVCS COM 693149106 474,606 -39,961 -7.77 12,999 -27.31 0.0004
2022-05-12 2022-03-31 13F P A M TRANSN SVCS COM 693149106 514,567 254,574 97.92 17,883 -3.14 0.0005
2022-02-10 2021-12-31 13F P A M TRANSN SVCS COM 693149106 259,993 -27,904 -9.69 18,462 42.56 0.0005
2021-11-09 2021-09-30 13F P A M TRANSN SVCS COM 693149106 287,897 139,591 94.12 12,950 65.54 0.0004
2021-08-11 2021-06-30 13F P A M TRANSN SVCS COM 693149106 148,306 -52,502 -26.15 7,823 -36.86 0.0002
2021-05-07 2021-03-31 13F P A M TRANSN SVCS COM 693149106 200,808 6,792 3.50 12,390 30.33 0.0004
2021-02-05 2020-12-31 13F P A M TRANSN SVCS COM 693149106 194,016 8,087 4.35 9,507 35.99 0.0003
2020-11-06 2020-09-30 13F P A M TRANSN SVCS COM 693149106 185,929 -40,950 -18.05 6,991 0.22 0.0003
2020-08-14 2020-06-30 13F P A M TRANSN SVCS COM 693149106 226,879 -4,880 -2.11 6,976 -2.12 0.0003
2020-05-01 2020-03-31 13F P A M TRANSN SVCS COM 693149106 231,759 -2,223 -0.95 7,127 -47.22 0.0003
2020-02-13 2019-12-31 13F P A M TRANSN SVCS COM 693149106 233,982 -1,779 -0.75 13,503 -3.10 0.0005
2019-11-08 2019-09-30 13F P A M TRANSN SVCS COM 693149106 235,761 2,923 1.26 13,935 -3.48 0.0006
2019-08-22 2019-06-30 13F/A-1 P A M TRANSN SVCS COM 693149106 232,838 -6,485 -2.71 14,438 23.28 0.0006
2019-08-13 2019-06-30 13F P A M TRANSN SVCS COM 693149106 232,838 -6,485 14,438
2019-05-09 2019-03-31 13F P A M TRANSN SVCS COM 693149106 239,323 -6,592 -2.68 11,712 20.84 0.0005
2019-02-08 2018-12-31 13F P A M TRANSN SVCS COM 693149106 245,915 -998 -0.40 9,692 -39.70 0.0005
2018-11-09 2018-09-30 13F P A M TRANSN SVCS COM 693149106 246,913 -2,834 -1.13 16,072 37.00 0.0007
2018-08-09 2018-06-30 13F P A M TRANSN SVCS COM 693149106 249,747 98,825 65.48 11,731 113.84 0.0005
2018-05-09 2018-03-31 13F P A M TRANSN SVCS COM 693149106 150,922 -983 -0.65 5,486 4.89 0.0003
2018-02-09 2017-12-31 13F P A M TRANSN SVCS COM 693149106 151,905 -1,125 -0.74 5,230 42.78 0.0002
2017-11-14 2017-09-30 13F P A M TRANSN SVCS COM 693149106 153,030 -407 -0.27 3,663 25.96 0.0002
2017-08-10 2017-06-30 13F P A M TRANSN SVCS COM 693149106 153,437 -106,514 -40.97 2,908 -31.33 0.0002
2017-05-12 2017-03-31 13F P A M TRANSN SVCS COM 693149106 259,951 259,908 604,437.21 4,235 423,400.00 0.0002
2017-02-10 2016-12-31 13F P A M TRANSN SVCS COM 693149106 43 -1,223 -96.60 1 -96.00 0.0000
2016-11-08 2016-09-30 13F P A M TRANSN SVCS COM 693149106 1,266 0 0.00 25 25.00 0.0000
2016-08-10 2016-06-30 13F P A M TRANSN SVCS COM 693149106 1,266 1,223 2,844.19 20 1,900.00 0.0000
2016-05-10 2016-03-31 13F P A M TRANSN SVCS COM 693149106 43 43 1 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.