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Public ownership evidence

Hudson Technologies Inc (HDSN) Ownership Disclosures

Read HDSN insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-11-07T14:03:26.246Z

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2026-11-022026-11-02Hartree Partners, LPP41,290Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-11-02 and its public availability date is 2026-11-02. Subtracting those calendar dates gives 0 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code P: a purchase. A purchase code is only one eligibility check. Confirm reporting-owner role, amendment lineage and coverage before treating it as a strategy input.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

Recent Form 4 activity

Inspect all 11 displayed rows: Recent Form 4 activity

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2026-11-022026-11-02Hartree Partners, LPP41,290Not reported
2026-11-022026-10-30Hartree Partners, LPP58,710Not reported
2026-11-022026-10-29Hartree Partners, LPP200,000Not reported
2026-09-282026-09-24Hartree Partners, LPP118,549Not reported
2026-09-232026-09-23Hartree Partners, LPP11,013Not reported
2026-09-232026-09-21Hartree Partners, LPP2,502Not reported
2026-09-182026-09-16Hartree Partners, LPP11,136Not reported
2026-09-052026-09-02Hartree Partners, LPP5,317Not reported
2026-08-272026-08-25Hartree Partners, LPP91,166Not reported
2026-08-272026-08-24Hartree Partners, LPP9,446Not reported
2026-08-152026-08-12Hartree Partners, LPP5,198Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

Inspect all 50 displayed rows: Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25514$2,950None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-252,950$514,000None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-2015,081$86,565None
Empowered Funds, LLC2026-06-302026-08-18205,878$1,181,740None
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO2026-06-302026-08-1851,499$295,604None
Odyssean, LLC2026-06-302026-08-1550,673$290,863None
WESTERLY CAPITAL MANAGEMENT, LLC2026-06-302026-08-153,380,000$19,401,200None
STANCE CAPITAL LLC2026-06-302026-08-156,560$37,654None
Graham Capital Management, L.P.2026-06-302026-08-1526,736$153,465None
XTX Topco Ltd2026-06-302026-08-1521,149$121,395None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15109,013$625,735None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15109,013$625,735None
Qube Research & Technologies Ltd2026-06-302026-08-15721,847$4,143,402None
OSAIC HOLDINGS, INC.2026-06-302026-08-1516,809$96,470None
Schonfeld Strategic Advisors LLC2026-06-302026-08-1549,528$284,289None
Squarepoint Ops LLC2026-06-302026-08-1566,220$380,103None
MetLife Investment Management, LLC2026-06-302026-08-1522,591$129,672None
BOOTHBAY FUND MANAGEMENT, LLC2026-06-302026-08-1511,260$64,632None
Legal & General Group Plc2026-06-302026-08-153,555$20,406None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1526,000$149,240Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1516,200$92,988Put
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1516,816$96,524None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1528,279$162,321None
Ancora Advisors LLC2026-06-302026-08-15303,380$1,741,401None
683 Capital Management, LLC2026-06-302026-08-15325,000$1,865,500None
Numerai GP LLC2026-06-302026-08-15150,254$862,458None
Thrivent Financial for Lutherans2026-06-302026-08-1511,129$64,000None
JONES FINANCIAL COMPANIES LLLP2026-06-302026-08-155,551$30,864None
AMERIPRISE FINANCIAL INC2026-06-302026-08-1598,394$564,782None
CREDIT AGRICOLE S A2026-06-302026-08-15140,000$803,600None
CASPIAN CAPITAL LP2026-06-302026-08-15728,306$4,180,476None
Kerrisdale Advisers, LLC2026-06-302026-08-15299,976$1,721,862None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-151,094$6,280None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-15945$5,424None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-15667$3,829None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-15159,197$913,791None
ROYAL BANK OF CANADA2026-06-302026-08-151,791$10,000None
ROYAL BANK OF CANADA2026-06-302026-08-151,136$7,000None
ALLIANCEBERNSTEIN L.P.2026-06-302026-08-1546,710$274,655None
BRIDGEWAY CAPITAL MANAGEMENT, LLC2026-06-302026-08-15494,432$2,838,040None
CANADA PENSION PLAN INVESTMENT BOARD2026-06-302026-08-1542,500$243,950None
D. E. Shaw & Co., Inc.2026-06-302026-08-1549,618$284,807None
D. E. Shaw & Co., Inc.2026-06-302026-08-15359,973$2,066,245None
CITADEL ADVISORS LLC2026-06-302026-08-159,965$57,199None
CITADEL ADVISORS LLC2026-06-302026-08-15564,301$3,239,088None
STATE OF WISCONSIN INVESTMENT BOARD2026-06-302026-08-1529,550$169,617None
Point72 Asset Management, L.P.2026-06-302026-08-1545,731$262,496None
Invesco Ltd.2026-06-302026-08-1550,041$287,235None
Invesco Ltd.2026-06-302026-08-15672$3,857None
Invesco Ltd.2026-06-302026-08-154,398$25,245None

90-day public filing window, up to 50 source positions.

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.