Grid Dynamics Holdings, Inc.
GDYN- Exchange
- Nasdaq
- Industry
- Services-Prepackaged Software
- SEC CIK
- 0001743725
In the last 90 days, Grid Dynamics Holdings, Inc. insiders filed 0 open-market purchases and 4 sales; 197 institutions reported holding it in 13F filings for Q2 2026, worth $352.9M in total; no superinvestor holds it.
Holders of 5% or more of GDYN
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Grid Dynamics Holdings, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13G | 11.90%9.88M shares | New | Jan 8, 20251 filing | Jan 8, 2025 | SEC |
| Alyeska Investment Group, L.P. | 13G/A | 7.25%6.07M shares | +1.09 ppfrom 6.16% | Nov 14, 20254 filings | Aug 14, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
10 Schedule 13D and 13G filings on Grid Dynamics Holdings, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Aug 14, 20264:37 PM ET | Alyeska Investment Group, L.P.and 2 others | 13G/A | 7.25%6.07M shares | +1.09 ppfrom 6.16% | Jun 30, 2026 | SEC |
| May 15, 20264:31 PM ET | Alyeska Investment Group, L.P.and 2 others | 13G | 6.16%5.25M shares | +1.65 ppfrom 4.51% | Mar 31, 2026 | SEC |
| Mar 27, 20269:32 AM ET | Vanguard Group Inc | 13G/A | 0.00%0 shares | −6.71 ppfrom 6.71%Below 5% | Mar 13, 2026 | SEC |
| Feb 17, 20264:37 PM ET | Alyeska Investment Group, L.P.and 2 others | 13G/A | 4.51%3.78M shares | −0.56 ppfrom 5.07%Below 5% | Dec 31, 2025 | SEC |
| Nov 14, 20255:46 PM ET | Alyeska Investment Group, L.P.and 2 others | 13G | 5.07%4.29M shares | New | Sep 30, 2025 | SEC |
| Nov 13, 20258:26 PM ET | Wasatch Advisors Inc | 13G/A | 0.00%0 shares | −5.40 ppfrom 5.40%Below 5% | Sep 30, 2025 | SEC |
| May 12, 20255:03 PM ET | Wasatch Advisors Inc | 13G/A | 5.40%4.56M shares | −1.30 ppfrom 6.70% | Mar 31, 2025 | SEC |
| Feb 12, 20253:23 PM ET | Wasatch Advisors Inc | 13G/A | 6.70%5.56M shares | – | Dec 31, 2024 | SEC |
| Jan 30, 20259:58 PM ET | Vanguard Group Inc | 13G/A | 6.71%5.54M shares | – | Dec 31, 2024 | SEC |
| Jan 8, 20257:07 PM ET | BlackRock, Inc. | 13G | 11.90%9.88M shares | New | Dec 31, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Grid Dynamics Holdings, Inc. shares.
No Form 144 notices for Grid Dynamics Holdings, Inc. are on file.