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: −$12.33M (5 inflow days, 15 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 49.0% of shares outstanding.
Reported short interest has risen from 19.39% to 19.47% of float over the last 6 biweekly reports (30 Jun 2026 to 15 Sep 2026).
| Holder | Type | Period | Share change | New stake |
|---|---|---|---|---|
| Driehaus Capital Management LLC | Mutual Fund | 2026/Q3 | +3,575,964 | 2.5% |
| BlackRock | Mutual Fund | 2026/Q3 | +1,891,628 | 5.2% |
| SG Americas Securities, LLC | Private Company | 2026/Q3 | +1,794,299 | 1.4% |
| Goodlander Investment Management, LLC | Mutual Fund | 2026/Q3 | +1,500,000 | 1.0% |
| Legal & General Investment Management | Mutual Fund | 2026/Q3 | +1,237,528 | 1.4% |
| First Trust Advisors L.P. | Mutual Fund | 2026/Q3 | +1,089,779 | 1.6% |
| Morgan Stanley | Public Company | 2026/Q3 | +1,056,601 | 2.2% |
| Deutsche Asset & Wealth Management | Mutual Fund | 2026/Q3 | +1,012,891 | 0.8% |
| Kingdon Capital Management, L.L.C. | Hedge Fund | 2026/Q3 | +900,000 | 0.6% |
| Vanguard Capital Management, LLC | Mutual Fund | 2026/Q3 | +889,557 | 2.9% |
| Point72 Asset Management, L.P. | Hedge Fund | 2026/Q3 | +777,258 | 0.9% |
| Vanguard Portfolio Management, LLC | Mutual Fund | 2026/Q3 | +670,809 | 2.6% |
| Mirae Asset Global Investments Co., Ltd | Mutual Fund | 2026/Q3 | +664,335 | 0.8% |
| Erste Asset Management GmbH | Mutual Fund | 2026/Q3 | +543,530 | 0.5% |
| Healthcare of Ontario Pension Plan Trust Fund | Government Pension Fund | 2026/Q3 | +520,519 | 0.4% |
Institutional buy/sell activity by reporting period, largest moves first.
| Date | Insider | Title | Transaction | Shares | Price | Held after |
|---|---|---|---|---|---|---|
| 20 Sep 2026 | Herman Bulls | Independent Chair of the Board of Directors | Open Market Acquisition | +10,000 | $7.36 | 169,550 |
| 20 Sep 2026 | Harald von Heynitz | Independent Director | Open Market Acquisition | +7,000 | $7.36 | 65,550 |
| 16 Jul 2026 | Peter Williams | Senior VP and Chief Supply Chain & Manufacturing Officer | Derivative Exercise and Sale | -3,905 | $14.07 | 22,292 |
| 16 Jul 2026 | Peter Williams | Senior VP and Chief Supply Chain & Manufacturing Officer | Derivative Exercise and Retained | +4,683 | – | 22,292 |
| 5 Jul 2026 | Siemens Aktiengesellschaft | Other Disposition | -20,462,735 | – | 41,432,781 | |
| 22 Jun 2026 | John Zahurancik | Senior VP & President of Americas | Automatic Disposition | -31,974 | $25.18 | 71,171 |
| 21 Jun 2026 | The AES Corporation | Intent to Sell (Form 144) | -15,000,000 | $25.19 | – | |
| 21 Jun 2026 | Qatar Holding LLC | Intent to Sell (Form 144) | -4,272,380 | $25.19 | – | |
| 21 Jun 2026 | John Zahurancik | Senior VP & President of Americas | Intent to Sell (Form 144) | -31,974 | $24.80 | – |
| 14 Jun 2026 | Harald von Heynitz | Independent Director | Automatic Disposition | -5,000 | $25.00 | 58,550 |
| 1 Jun 2026 | Elizabeth Fessenden | Independent Director | Other Disposition | -1,000 | – | 66,250 |
| 14 May 2026 | The AES Corporation | Derivative Exercise and Sale | -10,066,414 | $21.00 | – | |
| 14 May 2026 | Siemens Aktiengesellschaft | Open Market Disposition | -10,066,414 | $20.53 | 41,432,781 | |
| 14 May 2026 | Qatar Holding LLC | Open Market Disposition | -2,867,172 | $21.00 | 11,801,103 | |
| 17 Mar 2026 | Harald von Heynitz | Independent Director | Intent to Sell (Form 144) | -10,000 | $16.50 | – |
| 17 Mar 2026 | Harald von Heynitz | Independent Director | Derivative Exercise and Sale | -10,000 | $16.50 | 63,550 |
| 16 Mar 2026 | Herman Bulls | Independent Chair of the Board of Directors | Derivative Exercise and Retained | +32,348 | – | 159,550 |
| 16 Mar 2026 | Elizabeth Fessenden | Independent Director | Derivative Exercise and Retained | +32,348 | – | 67,250 |
| 16 Mar 2026 | Cynthia Arnold | Independent Director | Derivative Exercise and Retained | +32,348 | – | 118,550 |
| 16 Mar 2026 | Harald von Heynitz | Independent Director | Derivative Exercise and Retained | +22,348 | – | 63,550 |
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 | 27,877,537 | 19.5% | 5.0 |
| 31 Aug 2026 | 25,949,630 | 18.1% | 4.4 |
| 14 Aug 2026 | 25,445,491 | 17.8% | 2.7 |
| 31 Jul 2026 | 22,348,357 | 16.8% | 3.4 |
| 15 Jul 2026 | 26,668,003 | 20.1% | 3.1 |
| 30 Jun 2026 | 25,748,707 | 19.4% | 2.7 |
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