CORBYN INVESTMENT MANAGEMENT INC/MD RUSHB — Rush Enterprises CLB

Ownership history in CORBYN INVESTMENT MANAGEMENT INC/MD  ·  84 quarters on record

AI Ownership Summary

CORBYN INVESTMENT MANAGEMENT INC/MD reported Rush Enterprises CLB (RUSHB) in 84 quarterly 13F filings from 2023 Q4 through 2026 Q1. Peak portfolio weight reached 0.43% in 2023 Q4. The latest visible filing shows RUSHB at 0.37% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this RUSHB ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was CORBYN INVESTMENT MANAGEMENT INC/MD's position in Rush Enterprises CLB, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q1

RUSHB was reported at 0.37% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.43% in 2023 Q4

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2023 Q4 to 2026 Q1

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

RUSHB stock page CORBYN INVESTMENT MANAGEMENT INC/MD fund profile CORBYN INVESTMENT MANAGEMENT INC/MD full holdings
How CORBYN INVESTMENT MANAGEMENT INC/MD held RUSHB — position size vs. price
% of Fund (quarterly)    RUSHB price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 10 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 UNCHANGED — — — 17,328 — 0% 0.37% $1.1M 2026-04-28 $76.43
2025 Q4 UNCHANGED — — — 17,328 — 0% 0.28% $975K 2026-01-13 $57.65
2025 Q3 UNCHANGED — — — 17,328 — 0% 0.29% $995K 2025-10-22 $55.86
2025 Q2 UNCHANGED — — — 17,328 — 0% 0.31% $909K 2025-08-08 $54.52
2025 Q1 UNCHANGED — — — 17,328 — 0% 0.36% $979K 2025-05-09 $52.54
2024 Q4 UNCHANGED — — — 17,328 — 0% 0.34% $943K 2025-02-12 $55.34
2024 Q3 UNCHANGED — — — 17,328 — 0% 0.32% $831K 2024-11-07 $55.40
2024 Q2 UNCHANGED — — — 17,328 — 0% 0.28% $680K 2024-08-06 $44.53
2024 Q1 UNCHANGED — — — 17,328 — 0% 0.41% $923K 2024-05-06 $40.67
2023 Q4 UNCHANGED — — — 17,328 — 0% 0.43% $918K 2024-02-02 $47.12
74 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding RUSHB

As of 2026 Q1 — sorted by position size

Teton Advisors, LLC 1.85% VISTA INVESTMENT MANAGEMENT 3Y 7Y 1.33% GAMCO INVESTORS, INC. ET AL 3Y 7Y 0.68% PRIVATE MANAGEMENT GROUP INC 3Y 7Y 0.6% GLOBEFLEX CAPITAL L P 3Y 7Y 0.58% GABELLI FUNDS LLC 3Y 7Y 0.23% JB CAPITAL PARTNERS LP 3Y 0.23% INCEPTIONR LLC 3Y 0.18% MUHLENKAMP & CO INC 3Y 7Y 0.16% Brooklyn Investment Group 0.11%

FAQ About CORBYN INVESTMENT MANAGEMENT INC/MD and RUSHB

These are the practical questions this page is built to answer before you even open the full history table.

How long has CORBYN INVESTMENT MANAGEMENT INC/MD reported owning RUSHB?

CORBYN INVESTMENT MANAGEMENT INC/MD reported RUSHB across 10 quarterly 13F filings, from 2023 Q4 through 2026 Q1.

What was the largest reported RUSHB position in CORBYN INVESTMENT MANAGEMENT INC/MD's portfolio?

The largest reported portfolio weight for RUSHB was 0.43% in 2023 Q4.

What is the latest reported RUSHB position on this page?

The most recent filing on this page is 2026 Q1, when CORBYN INVESTMENT MANAGEMENT INC/MD reported 17,328 shares, equal to 0.37% of portfolio, with an estimated market value of $1.1M.

What does the chart on this RUSHB ownership page compare?

The chart compares CORBYN INVESTMENT MANAGEMENT INC/MD's quarterly RUSHB portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

How well did CORBYN INVESTMENT MANAGEMENT INC/MD time their RUSHB position?

Based on 13F filing dates vs. subsequent RUSHB price moves, CORBYN INVESTMENT MANAGEMENT INC/MD correctly timed 9 out of 21 reported position changes (43%). The annualised alpha on RUSHB relative to SPY over the holding period was +4.3%.

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