SIGA TECHNOLOGIES INC SIGA
CIK 0001010086 · CUSIP 826917106
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | BlackRock, Inc. CIK 2012383 · View history | $23.65M 3,627,964 shares | 0.00% | -168.21K(-4.40%)Reduced | SEC filing ↗ Aug 12, 2025 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $16.39M 2,513,906 shares | 0.00% | +20.48K(+0.80%)Added | SEC filing ↗ Aug 11, 2025 | ▾ |
| 03 | AltraVue Capital, LLC CIK 1740837 · View history | $16.31M 2,501,144 shares | 1.43% | +104.19K(+4.30%)Added | SEC filing ↗ Aug 12, 2025 | ▾ |
| 04 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $15.70M 2,407,479 shares | 0.00% | +54.60K(+2.30%)Added | SEC filing ↗ Aug 12, 2025 | ▾ |
| 05 | HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC CIK 1164833 · View history | $13.48M 2,067,760 shares | 0.04% | -1.09M(-34.50%)Reduced | SEC filing ↗ Aug 14, 2025 | ▾ |
| 06 | AMERICAN CENTURY COMPANIES INC CIK 748054 · View history | $9.16M 1,405,174 shares | 0.00% | +34.51K(+2.50%)Added | SEC filing ↗ Aug 12, 2025 | ▾ |
| 07 | CITADEL ADVISORS LLC CIK 1423053 · View history | $9.09M 1,394,495 shares | 0.01% | +233.68K(+20.10%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 08 | STATE STREET CORP CIK 93751 · View history | $7.24M 1,110,017 shares | 0.00% | +2.59K(+0.20%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 09 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $6.51M 997,948 shares | 0.00% | -50.88K(-4.90%)Reduced | SEC filing ↗ Aug 8, 2025 | ▾ |
| 10 | JUPITER ASSET MANAGEMENT LTD CIK 1215838 · View history | $6.46M 990,648 shares | 0.05% | 0(0.00%)Unchanged | SEC filing ↗ Aug 8, 2025 | ▾ |
| 11 | FIRST WILSHIRE SECURITIES MANAGEMENT INC CIK 732847 · View history | $4.55M 697,209 shares | 1.24% | -889.64K(-56.10%)Reduced | SEC filing ↗ Aug 14, 2025 | ▾ |
| 12 | ROYCE & ASSOCIATES LP CIK 906304 · View history | $4.19M 642,582 shares | 0.04% | -116.09K(-15.30%)Reduced | SEC filing ↗ Aug 11, 2025 | ▾ |
| 13 | RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history | $3.90M 598,912 shares | 0.01% | -28.62K(-4.60%)Reduced | SEC filing ↗ Aug 13, 2025 | ▾ |
| 14 | NEW YORK STATE COMMON RETIREMENT FUND CIK 810265 · Amended · View history | $3.87M 593,050 shares | 0.01% | +3.43K(+0.60%)Added | SEC filing ↗ Oct 8, 2025 | ▾ |
| 15 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 1164508 · View history | $3.77M 578,781 shares | 0.00% | -14.49K(-2.40%)Reduced | SEC filing ↗ Aug 13, 2025 | ▾ |
| 16 | GENERAL AMERICAN INVESTORS CO INC CIK 40417 · View history | $3.52M 539,738 shares | 0.24% | 0(0.00%)Unchanged | SEC filing ↗ Aug 1, 2025 | ▾ |
| 17 | Legato Capital Management LLC CIK 1442641 · View history | $3.50M 536,511 shares | 0.42% | +4.07K(+0.80%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 18 | MORGAN STANLEY CIK 895421 · View history | $3.40M 521,868 shares | 0.00% | +229.01K(+78.20%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 19 | GOLDMAN SACHS GROUP INC CIK 886982 · View history | $3.40M 521,607 shares | 0.00% | +238.41K(+84.20%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 20 | Uniplan Investment Counsel, Inc. CIK 1520710 · View history | $3.01M 461,551 shares | 0.30% | -43.01K(-8.50%)Reduced | SEC filing ↗ Aug 14, 2025 | ▾ |
Showing 20 / 179 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 179 reporting institutions.
This page includes 20 of 179 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
＋ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 179 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.
MCP https://api.akkrudata.ai/mcp
akkru_institutional_holdings
{"action":"holders","cusip":"826917106","quarter":"2025Q2","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP / CLI documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.