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Public ownership evidence

Alphatec Holdings, Inc. (ATEC) Ownership Disclosures

Read ATEC 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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2026-11-022026-10-30Demski David MP60,000Not reported

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

The displayed observation date is 2026-10-30 and its public availability date is 2026-11-02. Subtracting those calendar dates gives 3 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.

SEC 0001555392-26-000004 ↗SEC 0002155784-26-000004 ↗SEC 0001289409-26-000008 ↗

Recent Form 4 activity

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2026-11-022026-10-30Demski David MP60,000Not reported
2026-10-062026-10-05Carls Thomas AndrewA200,000Not reported
2026-09-112026-09-10Miles PatrickP115,000Not 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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VIRGINIA RETIREMENT SYSTEMS ET Al2026-06-302026-08-2625,200$217,980None
First Eagle Investment Management, LLC2026-06-302026-08-25996,637$8,620,910None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25143,972$1,245,358None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-251,245,358$143,972,000None
Assenagon Asset Management S.A.2026-06-302026-08-22161,238$1,394,709None
Rehmann Capital Advisory Group2026-06-302026-08-2123,950$207,167None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-20117,383$1,015,362None
Ensign Peak Advisors, Inc2026-03-312026-08-192,450$26,656None
Pure Financial Advisors, LLC2026-06-302026-08-1823,847$206,277None
Transamerica Financial Advisors, LLC2026-06-302026-08-187$60None
MCGUIRE CAPITAL ADVISORS INC2026-06-302026-08-1575$649None
Investors Portfolio Services LLC2026-06-302026-08-154$35None
Lighthouse Financial LLC2026-06-302026-08-1518,970$164,091None
SEI INVESTMENTS CO2026-06-302026-08-15326,945$2,828,074None
SEI INVESTMENTS CO2026-06-302026-08-15183$1,590None
JPL Wealth Management, LLC2026-06-302026-08-1522$191None
Susquehanna Portfolio Strategies, LLC2026-06-302026-08-15607,576$5,255,532None
Basecamp Wealth Advisors LLC2026-06-302026-08-15133$1,150None
Quarry LP2026-06-302026-08-15679$5,874None
Divisadero Street Capital Management, LP2026-06-302026-08-15283,953$2,456,193None
Invst, LLC2026-06-302026-08-15158,570$1,371,631None
XTX Topco Ltd2026-06-302026-08-15171,149$1,480,439None
Aquatic Capital Management LLC2026-06-302026-08-15103,064$891,504None
Western Wealth Management, LLC2026-06-302026-08-15108,814$941,262None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15995,314$8,609,466None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15995,314$8,609,466None
ExodusPoint Capital Management, LP2026-06-302026-08-15161,715$1,398,835None
Qube Research & Technologies Ltd2026-06-302026-08-1553,582$463,484None
Diametric Capital, LP2026-06-302026-08-1547,318$409,300None
OSAIC HOLDINGS, INC.2026-06-302026-08-1578,755$681,231None
OSAIC HOLDINGS, INC.2026-06-302026-08-15197$1,707None
OSAIC HOLDINGS, INC.2026-06-302026-08-1574,828$647,260None
Schonfeld Strategic Advisors LLC2026-06-302026-08-15167,390$1,447,921None
Squarepoint Ops LLC2026-06-302026-08-15326,548$2,824,640None
Man Group plc2026-06-302026-08-1544,125$381,681None
MetLife Investment Management, LLC2026-06-302026-08-1572,540$627,471None
Engineers Gate Manager LP2026-06-302026-08-1599,185$857,950None
JANE STREET GROUP, LLC2026-06-302026-08-1526,385$228,230None
JANE STREET GROUP, LLC2026-06-302026-08-1578,600$679,890Put
JANE STREET GROUP, LLC2026-06-302026-08-1518,200$157,430Call
PDT Partners, LLC2026-06-302026-08-15387,592$3,352,671None
Legal & General Group Plc2026-06-302026-08-1563,012$544,780None
Legal & General Group Plc2026-06-302026-08-1524,433$211,223None
Legal & General Group Plc2026-06-302026-08-1512,043$104,112None
Ensign Peak Advisors, Inc2026-06-302026-08-1512,150$105,098None
MOORE CAPITAL MANAGEMENT, LP2026-06-302026-08-15188,504$1,630,560None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-15243,800$2,108,870Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1555,000$475,750Put
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1523,905$206,778None
BRAIDWELL LP2026-06-302026-08-156,531,439$56,496,947None

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

VIRGINIA RETIREMENT SYSTEMS ET Al ↗First Eagle Investment Management, LLC ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗Assenagon Asset Management S.A. ↗Rehmann Capital Advisory Group ↗MERCER GLOBAL ADVISORS INC /ADV ↗Ensign Peak Advisors, Inc ↗Pure Financial Advisors, LLC ↗Transamerica Financial Advisors, LLC ↗

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.