Who holds it, who is betting against it, and where the big money is moving
Net of large-order buying minus selling, in USD. Over this window: −$6.04M (7 inflow days, 13 outflow days).
Super/Big orders approximate institutional-size trades; Mid/Small approximate retail-size trades. Net buy minus sell value in each bucket, summed over the window.
The five largest holders on file together own 31.7% of shares outstanding.
Reported short interest has risen from 0.76% to 1.26% of float over the last 6 biweekly reports (30 Jun 2026 to 15 Sep 2026).
| Holder | Type | Period | Share change | New stake |
|---|---|---|---|---|
| State Street Global Advisors | Mutual Fund | 2026/Q3 | +46,200 | 0.1% |
| Aigh Capital Management, LLC | Hedge Fund | 2026/Q3 | +3,954,194 | 4.6% |
| Columbia Management Investment Advisers, LLC | Mutual Fund | 2026/Q3 | +2,216,752 | 2.6% |
| AWM Investment Company Inc | Hedge Fund | 2026/Q3 | +1,700,000 | 2.0% |
| Royce & Associates, LP | Mutual Fund | 2026/Q3 | +1,565,424 | 4.0% |
| Silvercrest Asset Management Group LLC | Mutual Fund | 2026/Q3 | +1,428,470 | 1.7% |
| Principal Global Investors, LLC | Mutual Fund | 2026/Q3 | +955,014 | 2.8% |
| Archon Capital Management LLC | Hedge Fund | 2026/Q3 | +250,000 | 0.8% |
| Maven Securities Ltd. | Mutual Fund | 2026/Q3 | +150,000 | 0.2% |
| Millennium Management LLC | Hedge Fund | 2026/Q3 | +128,267 | 0.2% |
| Jane Street Group, LLC | Private Company | 2026/Q3 | +108,062 | 0.1% |
| Quadrature Capital Limited | Hedge Fund | 2026/Q3 | +103,521 | 0.1% |
| Hennion & Walsh Asset Management, Inc. | Mutual Fund | 2026/Q3 | +98,347 | 0.1% |
| XTX Markets Limited | Private Company | 2026/Q3 | +57,140 | 0.1% |
| Renaissance Technologies Corp. | Hedge Fund | 2026/Q3 | +53,500 | 0.1% |
Institutional buy/sell activity by reporting period, largest moves first.
| Date | Insider | Title | Transaction | Shares | Price | Held after |
|---|---|---|---|---|---|---|
| 4 Oct 2026 | George Cardoza | Chief Financial Officer | Intent to Sell (Form 144) | -1,592 | $8.07 | – |
| 4 Oct 2026 | Jurgi Camblong | Chief Executive Officer | Intent to Sell (Form 144) | -65,672 | $8.07 | – |
| 4 Oct 2026 | Zhenyu Xu | Chief Scientific Officer | Intent to Sell (Form 144) | -19,394 | $8.07 | – |
| 4 Oct 2026 | Manuela Da Valente | Chief Human Resources Officer | Intent to Sell (Form 144) | -4,240 | $8.07 | – |
| 4 Oct 2026 | Philippe Menu | Executive VP, Chief Medical Officer & Chief Product Officer | Intent to Sell (Form 144) | -22,394 | $8.07 | – |
| 20 Sep 2026 | Ross Muken | Chief Financial Officer | Automatic Disposition | -422 | $8.33 | 670,229 |
| 20 Sep 2026 | George Cardoza | Chief Financial Officer | Automatic Disposition | -774 | $8.33 | 308,318 |
| 13 Sep 2026 | Zhenyu Xu | Chief Scientific Officer | Automatic Disposition | -4,000 | $7.88 | 552,887 |
| 13 Sep 2026 | Philippe Menu | Executive VP, Chief Medical Officer & Chief Product Officer | Automatic Disposition | -5,000 | $7.88 | 208,387 |
| 10 Sep 2026 | Daan van Well | Executive VP, Chief Legal Officer & General Counsel | Automatic Disposition | -6,168 | $7.63 | 338,884 |
| 9 Sep 2026 | Jurgi Camblong | Chief Executive Officer | Automatic Disposition | -8,500 | $7.66 | 3,435,822 |
| 7 Sep 2026 | Kathy Hibbs | Independent Non-Executive Director | Automatic Disposition | -6,250 | $8.13 | 77,268 |
| 26 Aug 2026 | Zhenyu Xu | Chief Scientific Officer | Automatic Disposition | -10,000 | $8.91 | 556,887 |
| 24 Aug 2026 | Kathy Hibbs | Independent Non-Executive Director | Automatic Disposition | -6,250 | $8.68 | 83,518 |
| 24 Aug 2026 | Philippe Menu | Executive VP, Chief Medical Officer & Chief Product Officer | Automatic Disposition | -5,000 | $8.68 | 213,387 |
| 23 Aug 2026 | Abhimanyu Verma | Chief Technology Officer | Automatic Disposition | -10,000 | $8.80 | 172,171 |
| 20 Aug 2026 | Zhenyu Xu | Chief Scientific Officer | Automatic Disposition | -20,000 | $8.41 | 566,887 |
| 19 Aug 2026 | Zhenyu Xu | Chief Scientific Officer | Intent to Sell (Form 144) | -6,000 | $8.28 | – |
| 18 Aug 2026 | Zhenyu Xu | Chief Scientific Officer | Intent to Sell (Form 144) | -8,000 | $7.62 | – |
| 18 Aug 2026 | Manuela Da Valente | Chief Human Resources Officer | Derivative Exercise and Sale | -10,000 | $7.94 | 115,990 |
From Form 4/Form 144 filings. Negative share counts are disposals (sales, gifts, or shares withheld for taxes); positive are acquisitions.
| Report date | Shares short | % of float | Days to cover |
|---|---|---|---|
| 15 Sep 2026 | 1,069,499 | 1.3% | 1.7 |
| 31 Aug 2026 | 1,103,130 | 1.3% | 1.9 |
| 14 Aug 2026 | 930,712 | 1.1% | 1.7 |
| 31 Jul 2026 | 768,289 | 0.9% | 2.7 |
| 15 Jul 2026 | 661,352 | 0.8% | 2.1 |
| 30 Jun 2026 | 636,132 | 0.8% | 1.4 |
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