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Public ownership evidence

SIGA Technologies Inc. (SIGA) Ownership Disclosures

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

As of 2026-10-14T23:32:50.005Z

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Recent Form 4 activity

No matching purchases, sales or awards were returned in this 90-day public filing window.

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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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Cornerstone Financial Management LLC2025-12-312026-08-29177$1,081None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25576$2,097None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-252,097$576,000None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-2019,170$69,779None
Empowered Funds, LLC2026-06-302026-08-1843,615$158,759None
Jefferies Financial Group Inc.2026-06-302026-08-1862,667$228,108None
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO2026-06-302026-08-1838,800$141,232None
SEI INVESTMENTS CO2026-06-302026-08-1528,478$103,660None
SEI INVESTMENTS CO2026-06-302026-08-1542$150None
XTX Topco Ltd2026-06-302026-08-1562,668$228,112None
Aquatic Capital Management LLC2026-06-302026-08-1522,766$82,868None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15349,820$1,273,345None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15349,820$1,273,345None
Qube Research & Technologies Ltd2026-06-302026-08-15740,910$2,696,912None
OSAIC HOLDINGS, INC.2026-06-302026-08-158,191$29,821None
Schonfeld Strategic Advisors LLC2026-06-302026-08-1567,581$245,994None
Squarepoint Ops LLC2026-06-302026-08-1551,040$185,786None
Man Group plc2026-06-302026-08-15157,348$572,747None
MetLife Investment Management, LLC2026-06-302026-08-1521,880$79,643None
JANE STREET GROUP, LLC2026-06-302026-08-1517,500$63,700Call
Uniplan Investment Counsel, Inc.2026-06-302026-08-15560,353$2,039,686None
Legal & General Group Plc2026-06-302026-08-153,638$13,242None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1516,200$58,968Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1524,800$90,272Put
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1553,314$194,063None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-15579,599$2,109,740None
Atom Investors LP2026-06-302026-08-1557,464$209,169None
JONES FINANCIAL COMPANIES LLLP2026-06-302026-08-15315$1,235None
AMERIPRISE FINANCIAL INC2026-06-302026-08-15970$3,531None
AMERIPRISE FINANCIAL INC2026-06-302026-08-15192,398$700,329None
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC2026-06-302026-08-15914,047$3,327,131None
Cerity Partners LLC2026-06-302026-08-151,566$5,701None
Cerity Partners LLC2026-06-302026-08-1521,470$78,150None
Cambria Investment Management, L.P.2026-06-302026-08-1565,033$236,720None
Cresset Asset Management, LLC2026-06-302026-08-1540,690$148,112None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-151,692$6,159None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-151,242,742$4,523,581None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-15258$939None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-151,232$4,484None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-152$7None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-1566$240None
MANUFACTURERS LIFE INSURANCE COMPANY, THE2026-06-302026-08-1514,366$52,292None
ROYAL BANK OF CANADA2026-06-302026-08-15448$2,000None
ROYAL BANK OF CANADA2026-06-302026-08-151,279$5,000None
ALLIANCEBERNSTEIN L.P.2026-06-302026-08-1571,510$382,579None
CANADA PENSION PLAN INVESTMENT BOARD2026-06-302026-08-1569,400$252,616None
D. E. Shaw & Co., Inc.2026-06-302026-08-15229,300$834,652None
D. E. Shaw & Co., Inc.2026-06-302026-08-1535,600$129,584None
CITADEL ADVISORS LLC2026-06-302026-08-15199,247$725,259None
CITADEL ADVISORS LLC2026-06-302026-08-15351,999$1,281,276None

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

Cornerstone Financial Management LLC ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗MERCER GLOBAL ADVISORS INC /ADV ↗Empowered Funds, LLC ↗Jefferies Financial Group Inc. ↗PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO ↗SEI INVESTMENTS CO ↗SEI INVESTMENTS CO ↗XTX Topco Ltd ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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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.