Institutional HoldersBeta
Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.
Share classes (cover page of the 10-Q/A filed 2026-09-18, as of 2026-08-21)
| Class | Listed | Shares outstanding | Held by 13F filers | % of class | Holders | CUSIP |
|---|---|---|---|---|---|---|
| Common stock | GRDX · NASDAQ | 7,131,123 | 638,063 | 8.9% | 19 | 33749P507 |
Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.
Top holders (19 of 19 · 33749P507)
change vs 2026-03-31| # | Filer | Shares | % of class | Value | Change |
|---|---|---|---|---|---|
| 1 | RENAISSANCE TECHNOLOGIES LLC | 176,300 | 2.47% | $827K | -7,500 (-4.1%) |
| 2 | CITADEL ADVISORS LLC | 85,325 | 1.20% | $400K | NEW |
| 3 | Federation des caisses Desjardins du Quebec | 76,350 | 1.07% | $358K | +28,550 (+59.7%) |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 74,060 | 1.04% | $347K | +55,767 (+304.9%) |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 59,899 | 0.84% | $281K | +26,629 (+80.0%) |
| 6 | JANE STREET GROUP, LLC | 49,236 | 0.69% | $231K | +36,579 (+289.0%) |
| 7 | VANGUARD FIDUCIARY TRUST CO | 33,804 | 0.47% | $159K | +17,459 (+106.8%) |
| 8 | STATE STREET CORP | 23,446 | 0.33% | $110K | — |
| 9 | HRT FINANCIAL LP | 20,963 | 0.29% | $98K | NEW |
| 10 | Independent Advisor Alliance | 15,000 | 0.21% | $70K | NEW |
| 11 | NORTHERN TRUST CORP | 13,939 | 0.20% | $65K | NEW |
| 12 | HARBOUR INVESTMENTS, INC. | 5,862 | 0.08% | $27K | -2,132 (-26.7%) |
| 13 | JONES FINANCIAL COMPANIES LLLP | 2,000 | 0.03% | $9K | NEW |
| 14 | Tower Research Capital LLC (TRC) | 1,445 | 0.02% | $7K | +184 (+14.6%) |
| 15 | BARCLAYS PLC | 380 | 0.01% | $2K | NEW |
| 16 | SBI Securities Co., Ltd. | 31 | 0.00% | $145 | -473 (-93.8%) |
| 17 | Caitong International Asset Management Co., Ltd | 21 | 0.00% | $98 | NEW |
| 18 | OSAIC HOLDINGS, INC. | 1 | 0.00% | $4 | — |
| 19 | DANSKE BANK A/S | 1 | 0.00% | $5 | — |
Exited since 2026-03-31 (2 filers; largest 2 shown)
| UBS Group AG | −3,187 |
| CITIGROUP INC | −1 |
Large holders from 13D/13G (latest per reporting person, last 2 years)
Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.
| Reporting person | Form | Filed | Event | Shares | % of class |
|---|---|---|---|---|---|
| Jason David Sawyer | SCHEDULE 13D | 2026-07-08 | 2026-06-30 | 540,000 | 7.1% |
| Renaissance Technologies Holdings Corporation | SCHEDULE 13G/A | 2026-02-12 | 2025-12-31 | 31,000 | 0.92% |
| Renaissance Technologies LLC | SCHEDULE 13G/A | 2026-02-12 | 2025-12-31 | 31,000 | 0.92% |
| Alexander Chase Deitch | SCHEDULE 13G | 2026-01-13 | 2026-01-12 | 209,541 | 5% |
| Strategic EP, LLC | SCHEDULE 13G | 2026-01-13 | 2026-01-12 | 209,541 | 5% |
| Ali Arif Nasir | SCHEDULE 13D/A | 2025-06-10 | 2025-06-06 | 230,900 | 4.9% |
| ANANRA LLC TRUST | SCHEDULE 13D/A | 2025-06-10 | 2025-06-06 | 20,200 | 0.4% |
| ANARP LLC | SCHEDULE 13D/A | 2025-06-10 | 2025-06-06 | 62,800 | 1.3% |
| Arif Ali IRA Roth | SCHEDULE 13D/A | 2025-06-10 | 2025-06-06 | 147,900 | 3.1% |
Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.