RKDA Arcadia Biosciences, Inc.
Arcadia Biosciences, Inc. (RKDA) Institutional Ownership
What the institutions did with RKDA last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| HRT FINANCIAL LP | 88.4K | 41.6% |
| CITADEL ADVISORS LLC | 23.7K | 11.2% |
| Virtu Financial LLC | 21.8K | 10.3% |
| GEODE CAPITAL MANAGEMENT, LLC | 16.1K | 7.6% |
| XTX Topco Ltd | 15.5K | 7.3% |
| StoneX Group Inc. | 13.7K | 6.4% |
| STATE STREET CORP | 12.1K | 5.7% |
| JANE STREET GROUP, LLC | 10.2K | 4.8% |
| VANGUARD CAPITAL MANAGEMENT LLC | 9.6K | 4.5% |
| Bullock Wealth Management Group | 1.0K | 0.5% |
| SBI Securities Co., Ltd. | 120 | 0.1% |
| TD Waterhouse Canada Inc. | 70 | 0.0% |
| UBS Group AG | 35 | 0.0% |
| GROUP ONE TRADING LLC | 18 | 0.0% |
| MORGAN STANLEY | 2 | 0.0% |
| SOUTHERN MICHIGAN BANK & TRUST | 2 | 0.0% |
| HARBOUR INVESTMENTS, INC. | 1 | 0.0% |
| Caitong International Asset Management Co., Ltd | 1 | 0.0% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| ARMISTICE CAPITAL, LLC | Sold Out | 159.4K | 0 | -159.4K |
| SABBY MANAGEMENT, LLC | Sold Out | 114.6K | 0 | -114.6K |
| HRT FINANCIAL LP | New | 0 | 88.4K | +88.4K |
| CITADEL ADVISORS LLC | New | 0 | 23.7K | +23.7K |
| Virtu Financial LLC | New | 0 | 21.8K | +21.8K |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 31.7K | 16.1K | -15.6K |
| XTX Topco Ltd | New | 0 | 15.5K | +15.5K |
| StoneX Group Inc. | New | 0 | 13.7K | +13.7K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Sold Out | 12.6K | 0 | -12.6K |
| JANE STREET GROUP, LLC | New | 0 | 10.2K | +10.2K |
| VANGUARD FIDUCIARY TRUST CO | Sold Out | 4.4K | 0 | -4.4K |
| Tower Research Capital LLC (TRC) | Sold Out | 3.9K | 0 | -3.9K |
| UBS Group AG | Reduced | 807 | 35 | -772 |
| TD Waterhouse Canada Inc. | New | 0 | 70 | +70 |
| ASSETMARK, INC | Sold Out | 5 | 0 | -5 |
| CITIGROUP INC | Sold Out | 1 | 0 | -1 |
| Caitong International Asset Management Co., Ltd | New | 0 | 1 | +1 |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.