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 2026-10-10T12:08:28.848Z

Separate the three disclosure sources

Step 1 of 3

Recent Form 4 activity

Hudson Technologies Inc: source evidence dated 2026-10-10T12:08:28.848Z.

Available
2026-09-28
Trade date
2026-09-24
Reporting owners
Hartree Partners, LP
Code
P
Shares
118,549
Reported value
Not reported
What you should see

The displayed owner or issuer and source fields identify the receipt to verify; keep reporting and availability dates separate.

Step 2 of 3

Is this an insider transaction, 13F holding, or Congressional event?

Each source has different dates and units. Raw ticker-matched receipts, including amendments, are not deduplicated current ownership totals.

SEC 0000921895-26-002658
What you should see

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Step 3 of 3

Read HDSN fundamentals

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Read HDSN fundamentals
What you should see

Keep reporting dates and units beside the answer, and inspect its original citations.

Recent Form 4 activity

See the complete recent form 4 activity

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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
2026-08-012026-07-29Hartree Partners, LPP52,104Not reported
2026-07-232026-07-21Hartree Partners, LPP47,708Not reported
2026-07-232026-07-20Hartree Partners, LPP17,842Not reported

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

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.

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗MERCER GLOBAL ADVISORS INC /ADV ↗Empowered Funds, LLC ↗PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO ↗Odyssean, LLC ↗WESTERLY CAPITAL MANAGEMENT, LLC ↗STANCE CAPITAL LLC ↗Graham Capital Management, L.P. ↗XTX Topco Ltd ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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No records are available for this view.

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.

Institutional source directory ↗Congressional source directory ↗

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.

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