HDSN β€” Hudson Technologies COM

Ownership history in MARATHON CAPITAL MANAGEMENT  Β·  66 quarters on record

AI Ownership Summary

MARATHON CAPITAL MANAGEMENT reported Hudson Technologies COM (HDSN) in 66 quarterly 13F filings from 2023 Q4 through 2025 Q4. Peak portfolio weight reached 2.06% in 2023 Q4. The latest visible filing shows HDSN at 0.26% 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 HDSN ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was MARATHON CAPITAL MANAGEMENT's position in Hudson Technologies COM, 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
2025 Q4

HDSN was reported at 0.26% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
2.06% 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 2025 Q4

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.

How MARATHON CAPITAL MANAGEMENT held HDSN β€” position size vs. price
% of Fund (quarterly)    HDSN price (quarter-end, indexed to 100)
πŸ“‹ Quarterly Holdings History 9 quarters  β–Ύ
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 REDUCED 175,325 -19,125 -9.8% 0.26% $1.2M 2026-02-14 (Est.) $7.40
2025 Q3 REDUCED 194,450 -55,000 -22.0% 0.44% $1.9M 2025-11-14 $6.79
2025 Q2 REDUCED 249,450 -133,250 -34.8% 0.52% $2.0M 2025-08-14 $9.60
2025 Q1 REDUCED 382,700 -8,000 -2.0% 0.63% $2.4M 2025-05-15 $7.88
2024 Q4 REDUCED 390,700 -8,100 -2.0% 0.54% $2.2M 2025-02-14 $5.84
2024 Q3 REDUCED 398,800 -5,250 -1.3% 0.81% $3.3M 2024-11-14 $6.18
2024 Q2 REDUCED 404,050 -196,100 -32.7% 0.91% $3.6M 2024-08-14 $7.92
2024 Q1 REDUCED 600,150 -7,950 -1.3% 1.58% $6.6M 2024-05-15 $9.22
2023 Q4 REDUCED 608,100 -143,050 -19.0% 2.06% $8.2M 2024-02-08 $13.23
57 older quarters hidden  β€”  Sign in free or upgrade to Premium to see full history

🏒 Other funds also holding HDSN

As of 2026 Q1 β€” sorted by position size

GAMMA Investing LLC 0.0%

FAQ About MARATHON CAPITAL MANAGEMENT and HDSN

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

How long has MARATHON CAPITAL MANAGEMENT reported owning HDSN?

MARATHON CAPITAL MANAGEMENT reported HDSN across 9 quarterly 13F filings, from 2023 Q4 through 2025 Q4.

What was the largest reported HDSN position in MARATHON CAPITAL MANAGEMENT's portfolio?

The largest reported portfolio weight for HDSN was 2.06% in 2023 Q4.

What is the latest reported HDSN position on this page?

The most recent filing on this page is 2025 Q4, when MARATHON CAPITAL MANAGEMENT reported 175,325 shares, equal to 0.26% of portfolio, with an estimated market value of $1.2M.

What does the chart on this HDSN ownership page compare?

The chart compares MARATHON CAPITAL MANAGEMENT's quarterly HDSN 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.

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