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Public ownership evidence

Grid Dynamics Holdings, Inc. Class A Common Stock (GDYN) Ownership Disclosures

Read GDYN 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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2026-11-032026-11-03Gryzlov YuryS4,715Not reported

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

The displayed observation date is 2026-11-03 and its public availability date is 2026-11-03. 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 S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

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.

SEC 0001628280-26-069598 ↗SEC 0001628280-26-068641 ↗SEC 0001628280-26-068639 ↗

Recent Form 4 activity

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2026-11-032026-11-03Gryzlov YuryS4,715Not reported
2026-10-312026-10-30Livschitz LeonardS10,000Not reported
2026-10-312026-10-30Doradla AnilS20,000Not reported
2026-10-312026-10-30Gryzlov YuryS10,512Not reported
2026-10-302026-10-29Livschitz LeonardS10,000Not reported
2026-10-082026-10-08Gryzlov YuryS4,849Not reported
2026-10-052026-10-02Gryzlov YuryS1,245Not reported
2026-09-042026-09-03Gryzlov YuryS3,918Not reported
2026-08-202026-08-18Gryzlov YuryS467Not reported
2026-08-142026-08-13Gryzlov YuryS3,930Not 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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Advisors Asset Management, Inc.2022-12-312026-08-281,675$18,794None
Advisors Asset Management, Inc.2022-06-302026-08-281,574$26,000None
Advisors Asset Management, Inc.2022-09-302026-08-271,494$28,000None
Advisors Asset Management, Inc.2022-03-312026-08-271,613$22,711None
Advisors Asset Management, Inc.2023-06-302026-08-27321$2,969None
Advisors Asset Management, Inc.2023-09-302026-08-27321$3,910None
Advisors Asset Management, Inc.2023-03-312026-08-271,552$17,786None
Advisors Asset Management, Inc.2023-12-312026-08-27271$3,612None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2569,851$396,754None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25396,754$69,851,000None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-2023,180$131,663None
Ensign Peak Advisors, Inc2025-09-302026-08-1948,051$370,473None
Fulcrum Asset Management LLP2026-06-302026-08-1984$457None
Jefferies Financial Group Inc.2026-06-302026-08-1831,000$176,080None
FORMULA GROWTH LTD2026-06-302026-08-18251,896$1,430,769None
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO2026-06-302026-08-1841,170$233,846None
Investors Portfolio Services LLC2026-06-302026-08-1559$335None
SEI INVESTMENTS CO2026-06-302026-08-15141,738$805,072None
SEI INVESTMENTS CO2026-06-302026-08-15880$5,000None
JPL Wealth Management, LLC2026-06-302026-08-155$29None
Modern Wealth Management, LLC2026-06-302026-08-1511,620$66,002None
Basecamp Wealth Advisors LLC2026-06-302026-08-1534$193None
Polymer Capital Management (US) LLC2026-06-302026-08-1515,522$88,165None
Quarry LP2026-06-302026-08-15228$1,295None
T. Rowe Price Investment Management, Inc.2026-06-302026-08-153,712,682$21,089,000None
CSM Advisors, LLC2026-06-302026-08-15755,780$4,293,000None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15746,371$4,239,387None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15746,371$4,239,387None
OSAIC HOLDINGS, INC.2026-06-302026-08-155$28None
OSAIC HOLDINGS, INC.2026-06-302026-08-15210$1,193None
Squarepoint Ops LLC2026-06-302026-08-15475,738$2,702,192None
Trexquant Investment LP2026-06-302026-08-15614,081$3,487,980None
MetLife Investment Management, LLC2026-06-302026-08-1537,523$213,131None
JANE STREET GROUP, LLC2026-06-302026-08-15724,117$4,112,985None
JANE STREET GROUP, LLC2026-06-302026-08-15531,994$3,021,726None
JANE STREET GROUP, LLC2026-06-302026-08-1590,700$515,176Put
JANE STREET GROUP, LLC2026-06-302026-08-1510,800$61,344Call
State of Tennessee, Department of Treasury2026-06-302026-08-1514,374$81,645None
Legal & General Group Plc2026-06-302026-08-1537,511$213,063None
Legal & General Group Plc2026-06-302026-08-159,879$56,113None
Legal & General Group Plc2026-06-302026-08-156,111$34,710None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-15124,600$707,728Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1591,900$521,992Put
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-15595,077$3,380,037None
Bridgefront Capital, LLC2026-06-302026-08-1514,252$80,951None
Aigen Investment Management, LP2026-06-302026-08-1529,340$166,651None
S SQUARED TECHNOLOGY, LLC2026-06-302026-08-15636,737$3,616,666None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-151,087,719$6,178,244None
Atom Investors LP2026-06-302026-08-1529,384$166,901None
Balyasny Asset Management L.P.2026-06-302026-08-1523,164$131,572None

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

Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗

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.

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.