Company · Ownership research

GRID DYNAMICS HOLDINGS, INC. GDYN

CIK 0001743725 · CUSIP 39813G109

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 39813G109 (GDYN), not CUSIP 39813G909 (GDYN), CUSIP 39813G959 (GDYN), and does not merge CUSIPs.

This page lists the top 20 of 198 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BlackRock, Inc. CIK 2012383 · View history	$106.78M 11,824,534 shares	0.00%	+816.97K(+7.40%)Added	SEC filing ↗ Feb 12, 2026	▾
02	VANGUARD GROUP INC CIK 102909 · View history	$53.46M 5,920,753 shares	0.00%	+280.00K(+5.00%)Added	SEC filing ↗ Jan 29, 2026	▾
03	Fourth Sail Capital LP CIK 1803158 · View history	$34.57M 3,827,968 shares	5.55%	+1.02M(+36.20%)Added	SEC filing ↗ Feb 13, 2026	▾
04	Alyeska Investment Group, L.P. CIK 1453072 · View history	$34.16M 3,782,506 shares	0.10%	-508.28K(-11.80%)Reduced	SEC filing ↗ Feb 13, 2026	▾
05	BAMCO INC /NY/ CIK 1017918 · View history	$27.09M 3,000,322 shares	0.07%	0(0.00%)Unchanged	SEC filing ↗ Feb 17, 2026	▾
06	STATE STREET CORP CIK 93751 · View history	$24.94M 2,761,456 shares	0.00%	-72.88K(-2.60%)Reduced	SEC filing ↗ Feb 13, 2026	▾
07	ALLIANCEBERNSTEIN L.P. CIK 1109448 · View history	$21.46M 2,376,794 shares	0.01%	+507.40K(+27.10%)Added	SEC filing ↗ Feb 17, 2026	▾
08	WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history	$21.28M 2,356,779 shares	0.00%	+405.38K(+20.80%)Added	SEC filing ↗ Feb 17, 2026	▾
09	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$15.99M 1,770,624 shares	0.00%	-214.93K(-10.80%)Reduced	SEC filing ↗ Feb 12, 2026	▾
10	RIVERBRIDGE PARTNERS LLC CIK 1112325 · View history	$15.77M 1,745,967 shares	0.30%	-260.84K(-13.00%)Reduced	SEC filing ↗ Jan 13, 2026	▾
11	MORGAN STANLEY CIK 895421 · Amended · View history	$15.50M 1,716,986 shares	0.00%	-177.19K(-9.40%)Reduced	SEC filing ↗ May 27, 2026	▾
12	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$14.67M 1,624,533 shares	0.00%	+42.95K(+2.70%)Added	SEC filing ↗ Feb 9, 2026	▾
13	ROYAL BANK OF CANADA CIK 1000275 · View history	$14.19M 1,571,743 shares	0.00%	-53.08K(-3.30%)Reduced	SEC filing ↗ Feb 17, 2026	▾
14	FRONTIER CAPITAL MANAGEMENT CO LLC CIK 351173 · View history	$10.58M 1,171,806 shares	0.11%	+88.47K(+8.20%)Added	SEC filing ↗ Feb 17, 2026	▾
15	Focus Partners Wealth CIK 1542153 · View history	$9.38M 1,038,284 shares	0.01%	+1.51K(+0.10%)Added	SEC filing ↗ Feb 13, 2026	▾
16	T. Rowe Price Investment Management, Inc. CIK 1897612 · Amended · View history	$9.31M 1,030,671 shares	0.01%	+1.03M(+4,907,857.10%)Added	SEC filing ↗ Feb 19, 2026	▾
17	Summit Creek Advisors LLC CIK 1333709 · View history	$8.34M 923,757 shares	1.31%	+199.32K(+27.50%)Added	SEC filing ↗ Feb 6, 2026	▾
18	NORTHERN TRUST CORP CIK 73124 · View history	$7.47M 827,119 shares	0.00%	-1.99K(-0.20%)Reduced	SEC filing ↗ Feb 17, 2026	▾
19	1492 Capital Management LLC CIK 1584087 · View history	$7.31M 809,951 shares	2.80%	+234.69K(+40.80%)Added	SEC filing ↗ Feb 10, 2026	▾
20	AMERIPRISE FINANCIAL INC CIK 820027 · View history	$7.30M 808,519 shares	0.00%	-43.33K(-5.10%)Reduced	SEC filing ↗ Feb 17, 2026	▾

Showing 20 / 198 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

198

Cancelled or null records excluded

Disclosed shares

67,290,627

Not deduplicated across managers

Disclosed value

$607.61M

Not market cap or free float

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.

GRID DYNAMICS HOLDINGS, INC. · Q4 2025

Explore all 198 reporting institutions.

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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.