Arcadia Biosciences, Inc. (RKDA) — Institutional Holders, Q2 2026
18 institutional investment managers reported a RKDA position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $146.5K. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
RKDA in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- HRT FINANCIALNew · +88,386 sh+$60.0K
- CITADEL ADVISORSNew · +23,738 sh+$16.1K
- Virtu FinancialNew · +21,786 sh+$14.8K
- XTX Topco LtdNew · +15,475 sh+$10.5K
- StoneX GroupNew · +13,682 sh+$9.3K
Biggest sellers
- ARMISTICE CAPITALSold out · -159,390 sh-$108.2K
- SABBY MANAGEMENTSold out · -114,554 sh-$77.8K
- GEODE CAPITAL MANAGEMENTTrimmed · -15,608 sh-$10.6K
- SUSQUEHANNA INTERNATIONAL GROUP, LLPSold out · -12,614 sh-$8.6K
- VANGUARD FIDUCIARYSold out · -4,394 sh-$3.0K
RKDA 13F holders ranked 1–18 of 18
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | HRT FINANCIAL#1 · 88,386 sh | 88,386 | $60.0K | <0.01% | New |
| 2 | CITADEL ADVISORS#2 · 23,738 sh | 23,738 | $16.1K | 0.00% | New |
| 3 | Virtu Financial#3 · 21,786 sh | 21,786 | $15.0K | <0.01% | New |
| 4 | StoneX Group#4 · 13,682 sh | 13,682 | $11.3K | <0.01% | New |
| 5 | GEODE CAPITAL MANAGEMENT#5 · 16,135 sh | 16,135 | $11.0K | 0.00% | -49.2% |
| 6 | XTX Topco Ltd#6 · 15,475 sh | 15,475 | $10.5K | <0.01% | New |
| 7 | STATE STREET#7 · 12,146 sh | 12,146 | $8.2K | 0.00% | 0.0% |
| 8 | JANE STREET GROUP#8 · 10,245 sh | 10,245 | $7.0K | 0.00% | New |
| 9 | VANGUARD CAPITAL MANAGEMENT#9 · 9,644 sh | 9,644 | $6.5K | 0.00% | 0.0% |
| 10 | Bullock Wealth Management Group#10 · 1,000 sh | 1,000 | $749.00 | — | 0.0% |
| 11 | SBI Securities , Ltd.#11 · 120 sh | 120 | $81.00 | — | 0.0% |
| 12 | TD Waterhouse Canada#12 · 70 sh | 70 | $50.00 | — | New |
| 13 | UBS Group AG#13 · 35 sh | 35 | $24.00 | 0.00% | -95.7% |
| 14 | GROUP ONE TRADING, L.P.#14 · 18 sh | 18 | $12.00 | 0.00% | 0.0% |
| 15 | SOUTHERN MICHIGAN BANK &#15 · 2 sh | 2 | $1.00 | — | 0.0% |
| 16 | Caitong International Asset Management , Ltd#16 · 1 sh | 1 | $1.00 | 0.00% | New |
| 17 | HARBOUR INVESTMENTS#17 · 1 sh | 1 | $1.00 | 0.00% | 0.0% |
| 18 | MORGAN STANLEY#18 · 2 sh | 2 | $1.00 | 0.00% | 0.0% |
Funds that sold out of RKDA in Q2 2026 (7)
Held RKDA at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| ARMISTICE CAPITAL159,390 sh | 159,390 | $220.0K |
| SABBY MANAGEMENT114,554 sh | 114,554 | $158.1K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP12,614 sh | 12,614 | $17.4K |
| VANGUARD FIDUCIARY4,394 sh | 4,394 | $6.1K |
| Tower Research Capital (TRC)3,940 sh | 3,940 | $5.4K |
| ASSETMARK5 sh | 5 | $7.00 |
| CITIGROUP1 sh | 1 | $1.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.