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: −$618.4K (8 inflow days, 12 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 41.5% of shares outstanding.
Reported short interest has fallen from 5.89% to 5.58% of float over the last 6 biweekly reports (30 Jun 2026 to 15 Sep 2026).
| Holder | Type | Period | Share change | New stake |
|---|---|---|---|---|
| Hotchkis and Wiley Capital Management, LLC | Mutual Fund | 2026/Q3 | +371,700 | 0.5% |
| Jane Street Group, LLC | Private Company | 2026/Q3 | +1,256,111 | 1.5% |
| T. Rowe Price Group, Inc. | Mutual Fund | 2026/Q3 | +1,147,614 | 4.6% |
| Millennium Management LLC | Hedge Fund | 2026/Q3 | +1,087,719 | 1.3% |
| Alyeska Investment Group, L.P. | Hedge Fund | 2026/Q3 | +811,380 | 7.5% |
| C.S. McKee, L.P. | Mutual Fund | 2026/Q3 | +755,780 | 0.9% |
| Morgan Stanley | Public Company | 2026/Q3 | +551,977 | 2.3% |
| Kennedy Capital Management LLC | Mutual Fund | 2026/Q3 | +501,655 | 0.6% |
| Susquehanna International Group, LLP | Private Company | 2026/Q3 | +476,628 | 0.7% |
| Squarepoint OPS LLC | Hedge Fund | 2026/Q3 | +475,738 | 0.6% |
| The Goldman Sachs Group, Inc. | Public Company | 2026/Q3 | +452,911 | 1.1% |
| Point72 Asset Management, L.P. | Hedge Fund | 2026/Q3 | +438,027 | 0.5% |
| Federated Hermes, Inc. | Mutual Fund | 2026/Q3 | +302,940 | 2.2% |
| Norges Bank Investment Management | Sovereign Wealth Fund | 2026/Q3 | +263,100 | 0.3% |
| Northern Trust Global Investments | Mutual Fund | 2026/Q3 | +227,696 | 1.2% |
Institutional buy/sell activity by reporting period, largest moves first.
| Date | Insider | Title | Transaction | Shares | Price | Held after |
|---|---|---|---|---|---|---|
| 1 Oct 2026 | Yury Gryzlov | COO & CEO of Grid Dynamics Europe | Automatic Disposition | -1,245 | $8.46 | 442,472 |
| 30 Sep 2026 | Leonard Livschitz | Chief Executive Officer | Sale to Issuer | -35,968 | $8.38 | 2,898,259 |
| 30 Sep 2026 | Anil Doradla | Chief Financial Officer | Sale to Issuer | -2,111 | $8.38 | 345,914 |
| 30 Sep 2026 | Yury Gryzlov | COO & CEO of Grid Dynamics Europe | Sale to Issuer | -1,686 | $8.38 | 443,717 |
| 2 Sep 2026 | Yury Gryzlov | COO & CEO of Grid Dynamics Europe | Automatic Disposition | -3,918 | $8.00 | 438,737 |
| 20 Aug 2026 | Leonard Livschitz | Chief Executive Officer | Sale to Issuer | -174 | $7.96 | 2,867,560 |
| 17 Aug 2026 | Yury Gryzlov | COO & CEO of Grid Dynamics Europe | Automatic Disposition | -467 | $7.53 | 442,655 |
| 13 Aug 2026 | Leonard Livschitz | Chief Executive Officer | Sale to Issuer | -252 | $7.65 | 2,867,734 |
| 13 Aug 2026 | Yury Gryzlov | COO & CEO of Grid Dynamics Europe | Sale to Issuer | -632 | $7.75 | 443,122 |
| 12 Aug 2026 | Yury Gryzlov | COO & CEO of Grid Dynamics Europe | Automatic Disposition | -3,930 | $8.00 | 441,254 |
| 6 Aug 2026 | Shuo Zhang | Independent Director | Other Disposition | -5,134 | – | 90,370 |
| 27 Jul 2026 | Anil Doradla | Chief Financial Officer | Sale to Issuer | -667 | $6.14 | 343,025 |
| 1 Jul 2026 | Yury Gryzlov | COO & CEO of Grid Dynamics Europe | Automatic Disposition | -1,245 | $6.29 | 445,184 |
| 30 Jun 2026 | Leonard Livschitz | Chief Executive Officer | Sale to Issuer | -35,968 | $6.24 | 2,867,439 |
| 30 Jun 2026 | Anil Doradla | Chief Financial Officer | Sale to Issuer | -2,118 | $6.24 | 342,025 |
| 30 Jun 2026 | Yury Gryzlov | COO & CEO of Grid Dynamics Europe | Sale to Issuer | -1,686 | $6.24 | 445,184 |
| 31 May 2026 | Yury Gryzlov | COO & CEO of Grid Dynamics Europe | Automatic Disposition | -4,435 | $8.00 | 441,448 |
| 21 May 2026 | Leonard Livschitz | Chief Executive Officer | Sale to Issuer | -162 | $7.08 | 2,836,740 |
| 14 May 2026 | Leonard Livschitz | Chief Executive Officer | Sale to Issuer | -236 | $6.45 | 2,836,902 |
| 14 May 2026 | Yury Gryzlov | COO & CEO of Grid Dynamics Europe | Automatic Disposition | -467 | $6.45 | 445,883 |
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 | 4,529,405 | 5.6% | 4.9 |
| 31 Aug 2026 | 4,701,586 | 5.8% | 4.0 |
| 14 Aug 2026 | 5,548,438 | 6.8% | 2.8 |
| 31 Jul 2026 | 5,061,373 | 6.2% | 2.5 |
| 15 Jul 2026 | 5,062,091 | 6.1% | 3.1 |
| 30 Jun 2026 | 4,922,164 | 5.9% | 1.3 |
No comments yet — be the first to weigh in on GDYN.