P.A.M. TRANSPORTATION SVCS (PTSI) Institutional Ownership Changes & 13F Activity
P.A.M. TRANSPORTATION SVCS (PTSI). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Dimensional Fund Advisors Lp, Renaissance Technologies LLC, Castleknight Management Lp, Goldman Sachs Group Inc, and Vanguard Portfolio Management Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| State Street Corp | Buy | +223 | +0.4% | 61,675 | $864.07K | Q2 2026 | Sep 22, 2026 |
| California State Teachers Retirement System | Sell | -189 | -73.8% | 67 | $939.00 | Q2 2026 | Aug 24, 2026 |
| Castleknight Management Lp | Buy | +23,009 | — | 23,009 | $322.36K | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Buy | +11,662 | — | 11,662 | $163.38K | Q2 2026 | Aug 14, 2026 |
| Charles Schwab Investment Management Inc | Buy | +2,481 | +21.3% | 14,126 | $197.91K | Q2 2026 | Aug 14, 2026 |
| Wells Fargo & Company/Mn | Buy | +2,322 | +129.7% | 4,112 | $57.61K | Q2 2026 | Aug 14, 2026 |
| Royal Bank Of Canada | Buy | +1,915 | +621.8% | 2,223 | $31.00K | Q2 2026 | Aug 14, 2026 |
| Barclays Plc | Sell | -110 | -14.9% | 628 | $8.80K | Q2 2026 | Aug 14, 2026 |
| Mirae Asset Global Etfs Holdings Ltd. | Buy | +22 | +1.0% | 2,260 | $31.66K | Q2 2026 | Aug 14, 2026 |
| Mai Capital Management | Buy | +8 | +0.0% | 57,484 | $805.35K | Q2 2026 | Aug 14, 2026 |
| Quarry Lp | Buy | +2 | — | 2 | $28.00 | Q2 2026 | Aug 14, 2026 |
| Renaissance Technologies LLC | Sell | -28,700 | -3.3% | 844,041 | $11.83M | Q2 2026 | Aug 13, 2026 |
| Vanguard Portfolio Management Llc | Buy | +6,004 | +21.8% | 33,607 | $470.83K | Q2 2026 | Aug 13, 2026 |
| Vanguard Capital Management Llc | Buy | +2,958 | +1.3% | 230,842 | $3.23M | Q2 2026 | Aug 13, 2026 |
| Northern Trust Corp | Buy | +2,398 | +4.6% | 54,199 | $759.33K | Q2 2026 | Aug 13, 2026 |
| Morgan Stanley | Sell | -1,397 | -40.0% | 2,092 | $29.31K | Q2 2026 | Aug 13, 2026 |
| Ubs Group Ag | Buy | +1,011 | +63.5% | 2,602 | $36.45K | Q2 2026 | Aug 13, 2026 |
| Vanguard Fiduciary Trust Co | Buy | +439 | +1.4% | 32,785 | $459.32K | Q2 2026 | Aug 13, 2026 |
| Bnp Paribas Financial Markets | Sell | -300 | -28.0% | 770 | $10.79K | Q2 2026 | Aug 13, 2026 |
| Fmr Llc | Sell | -286 | -7.7% | 3,408 | $47.75K | Q2 2026 | Aug 13, 2026 |
| Jpmorgan Chase & Co | Buy | +2,122 | — | 2,122 | $31.49K | Q2 2026 | Aug 12, 2026 |
| Pacific Ridge Capital Partners, Llc | Sell | -1,488 | -0.8% | 193,151 | $2.71M | Q2 2026 | Aug 12, 2026 |
| Pinnacle Holdings, Llc | Sell | -349 | -0.6% | 55,870 | $782.74K | Q2 2026 | Aug 12, 2026 |
| Rhumbline Advisers | Sell | -233 | -3.4% | 6,554 | $91.82K | Q2 2026 | Aug 12, 2026 |
| Geode Capital Management, Llc | Buy | +57 | +0.0% | 137,971 | $1.93M | Q2 2026 | Aug 12, 2026 |
| Dimensional Fund Advisors Lp | Sell | -32,040 | -2.4% | 1,305,981 | $18.30M | Q2 2026 | Aug 11, 2026 |
| Tower Research Capital Llc (Trc) | Sell | -1,404 | -52.6% | 1,266 | $17.74K | Q2 2026 | Aug 11, 2026 |
| Allworth Financial Lp | Buy | +9 | +180.0% | 14 | $197.00 | Q2 2026 | Aug 11, 2026 |
| Arax Advisory Partners | Sell | -76 | -18.7% | 330 | $4.62K | Q2 2026 | Aug 10, 2026 |
| Essential Partners Llc | Buy | +15 | — | 15 | $210.00 | Q2 2026 | Aug 10, 2026 |
Frequently asked questions about PTSI activity
Which institutional owners are buying PTSI?
Institutional owners buying PTSI include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in PTSI activity?
"Buy" means an investor increased their reported position in PTSI compared to the prior reporting period. This reflects growing exposure to P.A.M. TRANSPORTATION SVCS (PTSI) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in PTSI increasing?
Institutional interest in PTSI can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related PTSI Institutional Insights
- PTSI Overview
- PTSI 13F Institutional Holders
- PTSI Top Institutional Shareholders
- Industrials Sector Institutional Ownership
- Industrials Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Industrials Stocks By Institutional Investors
- Most Sold Industrials Stocks By Institutional Investors
- PTSI Insider Trading & SEC Form 4 Activity
- PTSI Articles
- Top Institutional Investor Stock Rankings