GRID DYNAMICS HOLDINGS, INC. GDYN
CIK 0001743725 · CUSIP 39813G109
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | BlackRock, Inc. CIK 2012383 · View history | $84.87M 11,007,566 shares | 0.00% | +945.23K(+9.40%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $43.49M 5,640,758 shares | 0.00% | -178.79K(-3.10%)Reduced | SEC filing ↗ Nov 7, 2025 | ▾ |
| 03 | Alyeska Investment Group, L.P. CIK 1453072 · View history | $33.08M 4,290,786 shares | 0.10% | +3.02M(+236.90%)Added | SEC filing ↗ Nov 17, 2025 | ▾ |
| 04 | BAMCO INC /NY/ CIK 1017918 · View history | $23.13M 3,000,322 shares | 0.06% | +322(0.00%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 05 | STATE STREET CORP CIK 93751 · View history | $21.85M 2,834,331 shares | 0.00% | +230.15K(+8.80%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 06 | Fourth Sail Capital LP CIK 1803158 · View history | $21.68M 2,811,405 shares | 5.24% | +1.19M(+73.20%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 07 | RIVERBRIDGE PARTNERS LLC CIK 1112325 · View history | $15.47M 2,006,806 shares | 0.26% | -253.08K(-11.20%)Reduced | SEC filing ↗ Oct 14, 2025 | ▾ |
| 08 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $15.31M 1,985,557 shares | 0.00% | +105.95K(+5.60%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 09 | WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history | $15.05M 1,951,398 shares | 0.00% | -951.66K(-32.80%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 10 | LOOMIS SAYLES & CO L P CIK 312348 · View history | $14.92M 1,935,036 shares | 0.02% | -617.35K(-24.20%)Reduced | SEC filing ↗ Nov 13, 2025 | ▾ |
| 11 | MORGAN STANLEY CIK 895421 · Amended · View history | $14.60M 1,894,172 shares | 0.00% | +979.76K(+107.10%)Added | SEC filing ↗ May 27, 2026 | ▾ |
| 12 | ALLIANCEBERNSTEIN L.P. CIK 1109448 · View history | $14.41M 1,869,393 shares | 0.00% | -27.02K(-1.40%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 13 | ROYAL BANK OF CANADA CIK 1000275 · View history | $12.53M 1,624,823 shares | 0.00% | -88.99K(-5.20%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 14 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $12.20M 1,581,585 shares | 0.00% | -58.41K(-3.60%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 15 | JACOBS LEVY EQUITY MANAGEMENT, INC CIK 884414 · View history | $8.85M 1,148,331 shares | 0.04% | +1.15MNew | SEC filing ↗ Nov 17, 2025 | ▾ |
| 16 | Cerity Partners LLC CIK 1566475 · View history | $8.82M 1,143,624 shares | 0.01% | +1.14MNew | SEC filing ↗ Oct 22, 2025 | ▾ |
| 17 | CenterBook Partners LP CIK 1872738 · View history | $8.44M 1,094,701 shares | 0.42% | +786.38K(+255.10%)Added | SEC filing ↗ Nov 7, 2025 | ▾ |
| 18 | FRONTIER CAPITAL MANAGEMENT CO LLC CIK 351173 · View history | $8.35M 1,083,334 shares | 0.07% | +362.70K(+50.30%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 19 | Focus Partners Wealth CIK 1542153 · View history | $7.99M 1,036,769 shares | 0.01% | +203(0.00%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 20 | ACADIAN ASSET MANAGEMENT LLC CIK 916542 · View history | $7.06M 916,860 shares | 0.01% | +896.63K(+4,433.10%)Added | SEC filing ↗ Nov 13, 2025 | ▾ |
Showing 20 / 188 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 188 reporting institutions.
This page includes 20 of 188 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
+ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 188 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.
MCP https://api.akkrudata.ai/mcp
akkru_institutional_holdings
{"action":"holders","cusip":"39813G109","quarter":"2025Q3","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP / CLI documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.