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: −$5.62M (6 inflow days, 14 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 33.9% of shares outstanding.
Reported short interest has risen from 4.49% to 6.74% of float over the last 6 biweekly reports (30 Jun 2026 to 15 Sep 2026).
| Holder | Type | Period | Share change | New stake |
|---|---|---|---|---|
| Ophir Asset Management Pty Ltd | Mutual Fund | 2026/Q3 | +849,158 | 3.7% |
| Juniper Investment Company, LLC | Hedge Fund | 2026/Q3 | +830,749 | 4.1% |
| Citadel Advisors LLC | Hedge Fund | 2026/Q3 | +756,725 | 1.7% |
| Macquarie Investment Management Business Trust | Mutual Fund | 2026/Q3 | +728,828 | 6.5% |
| Conestoga Capital Advisors, LLC | Mutual Fund | 2026/Q3 | +448,290 | 3.3% |
| D. E. Shaw & Co., L.P. | Hedge Fund | 2026/Q3 | +431,690 | 0.9% |
| Soleus Capital Management, L.P. | Hedge Fund | 2026/Q3 | +388,000 | 0.8% |
| Silvercrest Asset Management Group LLC | Mutual Fund | 2026/Q3 | +363,150 | 2.1% |
| Balyasny Asset Management L.P. | Hedge Fund | 2026/Q3 | +352,496 | 0.8% |
| Qube Research & Technologies Ltd | Mutual Fund | 2026/Q3 | +275,082 | 1.0% |
| Morgan Stanley | Public Company | 2026/Q3 | +228,765 | 4.8% |
| Delaware Management Company | Mutual Fund | 2026/Q3 | +226,288 | 1.1% |
| Royce & Associates, LP | Mutual Fund | 2026/Q3 | +214,000 | 1.3% |
| BlackRock | Mutual Fund | 2026/Q3 | +199,163 | 13.7% |
| Quantinno Capital Management LP | Mutual Fund | 2026/Q3 | +189,718 | 0.4% |
Institutional buy/sell activity by reporting period, largest moves first.
| Date | Insider | Title | Transaction | Shares | Price | Held after |
|---|---|---|---|---|---|---|
| 9 Sep 2026 | Andrew Green | Senior Vice President of Regulatory & Quality | Open Market Disposition | -11,480 | $24.97 | 40,160 |
| 2 Sep 2026 | Andrew Green | Senior Vice President of Regulatory & Quality | Intent to Sell (Form 144) | -1,493 | $26.02 | – |
| 2 Sep 2026 | Andrew Green | Senior Vice President of Regulatory & Quality | Open Market Disposition | -8,003 | $27.27 | 51,640 |
| 1 Sep 2026 | Andrew Green | Senior Vice President of Regulatory & Quality | Intent to Sell (Form 144) | -6,510 | $27.27 | – |
| 26 Aug 2026 | Marshall Stanton | Senior VP of Clinical Research & Chief Medical Officer | Intent to Sell (Form 144) | -7,400 | $26.85 | – |
| 18 Aug 2026 | James Mackin | Chairperson & CEO | Open Market Disposition | -70,000 | $28.96 | 877,275 |
| 13 Aug 2026 | Andrew Green | Senior Vice President of Regulatory & Quality | Open Market Disposition | -616 | $28.55 | 59,643 |
| 13 Aug 2026 | Lance Berry | Chief Financial Officer | Open Market Disposition | -715 | $28.55 | 210,112 |
| 11 Aug 2026 | Jean Holloway | Senior VP, General Counsel, Chief Compliance Officer & Corporate Secretary | Open Market Disposition | -977 | $28.49 | 184,118 |
| 10 Jun 2026 | Andrew Green | Senior Vice President of Regulatory & Quality | Derivative Exercise and Sale | -44,001 | $20.71 | 60,259 |
| 1 Jun 2026 | Anthony Semedo | Independent Director | Other Acquisition | +6,325 | – | 47,560 |
| 1 Jun 2026 | Anthony Semedo | Independent Director | Other Disposition | -6,325 | – | 47,560 |
| 31 May 2026 | Andrew Green | Senior Vice President of Regulatory & Quality | Initial Statement of Beneficial | +0 | – | 44,001 |
| 17 May 2026 | James Bullock | Independent Director | Other Acquisition | +7,576 | – | 76,223 |
| 17 May 2026 | Thomas Ackerman | Independent Director | Other Acquisition | +7,576 | – | 157,472 |
| 17 May 2026 | Anthony Semedo | Independent Director | Other Acquisition | +7,576 | – | 46,960 |
| 17 May 2026 | Daniel Bevevino | Independent Director | Other Acquisition | +7,576 | – | 157,637 |
| 17 May 2026 | Jeffrey Burbank | Independent Director | Other Acquisition | +7,576 | – | 61,372 |
| 17 May 2026 | Jon Salveson | Independent Director | Other Acquisition | +7,576 | – | 137,416 |
| 17 May 2026 | Marna Borgstrom | Independent Director | Other Acquisition | +7,576 | – | 56,664 |
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 | 3,284,198 | 6.7% | 5.4 |
| 31 Aug 2026 | 2,927,038 | 6.0% | 4.4 |
| 14 Aug 2026 | 2,745,747 | 5.6% | 3.2 |
| 31 Jul 2026 | 2,705,501 | 5.6% | 4.8 |
| 15 Jul 2026 | 2,498,637 | 5.1% | 4.5 |
| 30 Jun 2026 | 2,179,918 | 4.5% | 2.0 |
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