Vault-13

GRID DYNAMICS HLDGS INC GDYN

CL A · Common Stock · CUSIP 39813G109 · ISIN US39813G1094

Global provider of AI, engineering, and technology consulting services

148 institutional holders -7 vs Q1 2023
52,472,88752.5m shares reported held*
69.7% of all shares outstanding*
$485.5mreported value*
16 new 65 added 47 reduced 23 sold out net bought ≈ $2.3m (+247.0k shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($124.8k this quarter). Holder counts are more reliable. Shares outstanding: 75.3m as of 2023-07-31, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $9.25. Options: 2 managers hold calls ($5.5k notional), 2 hold puts ($13.9k).

Trends to Q2 2023

Institutional holders

Managers reporting a position, each quarter

0100200Q3 22: 176Q4 22: 159Q1 23: 155Q2 23: 148148Q3 22Q4 22Q1 23Q2 23
Numbers
QuarterHolders
Q3 2022176
Q4 2022159
Q1 2023155
Q2 2023148

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
1000100Q4 22: 78 bought or addedQ4 22: 96 cut or sold outQ4 22Q1 23: 76 bought or addedQ1 23: 77 cut or sold outQ1 23Q2 23: 81 bought or addedQ2 23: 70 cut or sold outQ2 23
Numbers
QuarterBought or addedCut or sold out
Q4 20227896
Q1 20237677
Q2 20238170

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$2m$4m$6mQ3 22 calls: $5.7mQ3 22 puts: $565.0kQ3 22P/C 0.10Q4 22 calls: $2.3mQ4 22 puts: $75.2kQ4 22P/C 0.03Q1 23 calls: $836.8kQ1 23 puts: $296.2kQ1 23P/C 0.35Q2 23 calls: $5.5kQ2 23 puts: $13.9kQ2 23P/C 2.50
Numbers
QuarterCallsPutsP/C
Q3 2022$5.7m$565.0k0.10
Q4 2022$2.3m$75.2k0.03
Q1 2023$836.8k$296.2k0.35
Q2 2023$5.5k$13.9k2.50

Biggest buyers

WASATCH ADVISORS LP Added +1,517,395+1.5m
Alyeska Investment Group, L.P. New +1,258,759+1.3m
VANGUARD GROUP INC Added +867,368+867.4k
FRONTIER CAPITAL MANAGEMENT CO LLC Added +745,942+745.9k
Granahan Investment Management, LLC Added +500,351+500.4k
BANK OF AMERICA CORP /DE/ Added +389,912+389.9k
Polar Asset Management Partners Inc. New +361,618+361.6k
DIMENSIONAL FUND ADVISORS LP Added +305,026+305.0k
SEI INVESTMENTS CO Added +220,615+220.6k
272 Capital LP Added +143,520+143.5k

Biggest sellers

Toronado Partners, LLC Reduced -1,446,928-1.4m
LOOMIS SAYLES & CO L P Reduced -1,291,216-1.3m
BlackRock Inc. Reduced -971,310-971.3k
FRED ALGER MANAGEMENT, LLC Sold out -946,585-946.6k
NEXT CENTURY GROWTH INVESTORS LLC Reduced -730,978-731.0k
Driehaus Capital Management LLC Sold out -462,677-462.7k
Nuveen Asset Management, LLC Reduced -444,754-444.8k
JENNISON ASSOCIATES LLC Reduced -154,922-154.9k
VICTORY CAPITAL MANAGEMENT INC Reduced -138,436-138.4k
S SQUARED TECHNOLOGY, LLC Reduced -138,000-138.0k

Biggest calls

CITADEL ADVISORS LLC Reduced $5.5k600 shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

CITADEL ADVISORS LLC Reduced $13.9k1.5k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
Alyeska Investment Group, L.P. 13G · institution +1.1 pts · filed 2026-08-14 7.2% +1.1 pts 6.1m≈ $34.5m 2026-08-14
BlackRock, Inc. 13G · institution -5.2 pts · filed 2026-07-08 6.7% -5.2 pts 5.6m≈ $31.7m 2026-07-08

Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27)

Insider purchases and sales in Q2 2023

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
404Q3 21: 0 buyingQ3 21: 0 sellingQ4 21: 0 buyingQ4 21: 4 sellingQ4 21Q1 22: 2 buyingQ1 22: 1 sellingQ2 22: 1 buyingQ2 22: 1 sellingQ2 22Q3 22: 0 buyingQ3 22: 2 sellingQ4 22: 0 buyingQ4 22: 2 sellingQ4 22Q1 23: 0 buyingQ1 23: 1 sellingQ2 23: 0 buyingQ2 23: 0 sellingQ2 23
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q3 20210—0——
Q4 20210—4$2.2m—
Q1 20222$279.0k1$433.3k—
Q2 20221$164.2k1$1.5m—
Q3 20220—2$3.5m—
Q4 20220—2$2.5m—
Q1 20230—1$878.2k—
Q2 20230—0——

None reported in Q2 2023.

Holders, Q2 2023

#ManagerLocationShares Value% of their portfolioChangeShares change
1 WASATCH ADVISORS LP 0.40% of their portfolio SALT LAKE CITY, UT 7,225,3467.2m $66.8m $66.8m 0.40% Added +1.5m +1,517,395
2 BlackRock Inc. 0.00% of their portfolio New York, NY 4,496,0474.5m $41.6m $41.6m 0.00% Reduced -971.3k -971,310
3 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 3,961,6204.0m $36.6m $36.6m 0.00% Added +867.4k +867,368
4 RIVERBRIDGE PARTNERS LLC 0.43% of their portfolio MINNEAPOLIS, MN 3,684,6873.7m $34.1m $34.1m 0.43% Added +126.1k +126,059
5 BAMCO INC /NY/ 0.08% of their portfolio NEW YORK, NY 3,000,0003.0m $27.8m $27.8m 0.08% Unchanged
6 Granahan Investment Management, LLC 0.75% of their portfolio WALTHAM, MA 2,646,0422.6m $24.5m $24.5m 0.75% Added +500.4k +500,351
7 JENNISON ASSOCIATES LLC 0.02% of their portfolio NEW YORK, NY 2,535,7102.5m $23.5m $23.5m 0.02% Reduced -154.9k -154,922
8 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 1,685,6721.7m $15.6m $15.6m 0.00% Added +60.7k +60,708
9 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 1,301,5261.3m $12.0m $12.0m 0.00% Added +101.4k +101,435
10 Alyeska Investment Group, L.P. 0.09% of their portfolio CHICAGO, IL 1,258,7591.3m $11.6m $11.6m 0.09% New
11 Thrivent Financial for Lutherans 0.02% of their portfolio Minneapolis, MN 1,169,5931.2m $10.8m $10.8m 0.02% Reduced -9.5k -9,539
12 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 1,151,3501.2m $10.6m $10.6m 0.00% Added +67.9k +67,871
13 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 1,064,8381.1m $9.8m $9.8m 0.00% Added +389.9k +389,912
14 FRONTIER CAPITAL MANAGEMENT CO LLC 0.09% of their portfolio Boston, MA 1,025,5591.0m $9.5m $9.5m 0.09% Added +745.9k +745,942
15 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 1,015,1641.0m $9.4m $9.4m 0.00% Reduced -135.5k -135,539
16 Summit Creek Advisors LLC 1.13% of their portfolio MINNEAPOLIS, MN 980,510980.5k $9.1m $9.1m 1.13% Added +1.1k +1,086
17 BLAIR WILLIAM & CO/IL 0.03% of their portfolio CHICAGO, IL 935,942935.9k $8.7m $8.7m 0.03% Added +49.8k +49,795
18 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 926,005926.0k $8.6m $8.6m 0.00% Added +76.3k +76,276
19 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 799,262799.3k $7.4m $7.4m 0.00% Added +305.0k +305,026
20 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 781,313781.3k $7.2m $7.2m 0.00% Added +44.2k +44,190
21 Toronado Partners, LLC 2.82% of their portfolio SAN FRANCISCO, CA 702,458702.5k $6.5m $6.5m 2.82% Reduced -1.4m -1,446,928
22 WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio Boston, MA 693,253693.3k $6.4m $6.4m 0.00% Added +138.1k +138,111
23 KORNITZER CAPITAL MANAGEMENT INC /KS 0.10% of their portfolio SHAWNEE MISSION, KS 567,280567.3k $5.2m $5.2m 0.10% Unchanged
24 272 Capital LP 1.43% of their portfolio DALLAS, TX 420,887420.9k $3.9m $3.9m 1.43% Added +143.5k +143,520
25 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 398,515398.5k $3.7m $3.7m 0.00% Added +5.8k +5,819
26 SEI INVESTMENTS CO 0.01% of their portfolio OAKS, PA 366,957367.0k $3.4m $3.4m 0.01% Added +220.6k +220,615
27 Polar Asset Management Partners Inc. 0.07% of their portfolio TORONTO, A6 361,618361.6k $3.3m $3.3m 0.07% New
28 NICHOLAS COMPANY, INC. 0.06% of their portfolio MILWAUKEE, WI 342,440342.4k $3.2m $3.2m 0.06% Added +45.3k +45,310
29 Taylor Frigon Capital Management LLC 1.47% of their portfolio SCOTTSDALE, AZ 326,407326.4k $3.0m $3.0m 1.47% Reduced -3.4k -3,434
30 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 295,385295.4k $2.7m $2.7m 0.00% Reduced -6.0k -6,039
31 1492 Capital Management LLC 1.48% of their portfolio MILWAUKEE, WI 273,830273.8k $2.5m $2.5m 1.48% Added +87.8k +87,750
32 NEXT CENTURY GROWTH INVESTORS LLC 0.23% of their portfolio PLYMOUTH, MN 260,986261.0k $2.4m $2.4m 0.23% Reduced -731.0k -730,978
33 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.01% of their portfolio COLUMBUS, OH 256,651256.7k $2.4m $2.4m 0.01% Added +58.0k +57,976
34 LOOMIS SAYLES & CO L P 0.00% of their portfolio BOSTON, MA 240,045240.0k $2.2m $2.2m 0.00% Reduced -1.3m -1,291,216
35 Ensign Peak Advisors, Inc 0.00% of their portfolio SALT LAKE CITY, UT 224,284224.3k $2.1m $2.1m 0.00% Reduced -25.2k -25,239
36 BOOTHBAY FUND MANAGEMENT, LLC 0.06% of their portfolio NEW YORK, NY 222,866222.9k $2.1m $2.1m 0.06% Added +70.7k +70,698
37 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 216,594216.6k $2.0m $2.0m 0.00% Reduced -2.2k -2,243
38 S SQUARED TECHNOLOGY, LLC 0.93% of their portfolio RYE, NY 202,524202.5k $1.9m $1.9m 0.93% Reduced -138.0k -138,000
39 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 167,071167.1k $1.5m $1.5m 0.00% Reduced -114.4k -114,359
40 MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.02% of their portfolio New York, NY 157,140157.1k $1.5m $1.5m 0.02% Reduced -12.0k -12,016
41 ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio Berwyn, PA 152,142152.1k $1.4m $1.4m 0.00% Reduced -69.5k -69,516
42 VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio San Antonio, TX 145,038145.0k $1.3m $1.3m 0.00% Reduced -138.4k -138,436
43 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 142,994143.0k $1.3m $1.3m 0.00% Added +37.2k +37,194
44 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 138,018138.0k $1.3m $1.3m 0.00% Added +1.4k +1,389
45 Nuveen Asset Management, LLC 0.00% of their portfolio CHICAGO, IL 123,678123.7k $1.1m $1.1m 0.00% Reduced -444.8k -444,754
46 Swiss National Bank 0.00% of their portfolio ZURICH, V8 122,200122.2k $1.1m $1.1m 0.00% Added +18.3k +18,300
47 RENAISSANCE GROUP LLC 0.05% of their portfolio Covington, KY 122,053122.1k $1.1m $1.1m 0.05% Added +7.0k +6,981
48 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 117,475117.5k $1.1m $1.1m 0.00% Added +49.5k +49,467
49 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 110,808110.8k $1.0m $1.0m 0.00% Added +6.3k +6,300
50 Mirador Capital Partners LP 0.24% of their portfolio PLEASANTON, CA 108,385108.4k $1.0m $1.0m 0.24% Added +1.4k +1,384
51 Fiera Capital Corp 0.00% of their portfolio MONTREAL, A8 106,891106.9k $988.7k $988.7k 0.00% Unchanged
52 OPPENHEIMER ASSET MANAGEMENT INC. 0.01% of their portfolio NEW YORK, NY 104,761104.8k $969.0k $969.0k 0.01% Reduced -15.4k -15,384
53 Linden Thomas Advisory Services, LLC 0.21% of their portfolio Charlotte, NC 104,512104.5k $966.8k $966.8k 0.21% New
54 CenterBook Partners LP 0.11% of their portfolio GREENWICH, CT 96,99197.0k $897.2k $897.2k 0.11% Reduced -11.5k -11,484
55 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 94,05094.0k $870.0k $870.0k 0.00% New
56 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 86,09486.1k $796.4k $796.4k 0.00% Reduced -89.3k -89,309
57 LOS ANGELES CAPITAL MANAGEMENT LLC 0.00% of their portfolio LOS ANGELES, CA 82,89882.9k $766.8k $766.8k 0.00% Reduced -6.0k -5,975
58 TWO SIGMA ADVISERS, LP 0.00% of their portfolio NEW YORK, NY 78,50078.5k $726.1k $726.1k 0.00% Reduced -61.7k -61,700
59 WADE G W & INC 0.03% of their portfolio Wellesley, MA 77,95878.0k $721.0k $721.0k 0.03% Unchanged
60 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 76,40676.4k $706.8k $706.8k 0.00% Added +1.8k +1,797
61 Cubist Systematic Strategies, LLC 0.01% of their portfolio STAMFORD, CT 75,81375.8k $701.3k $701.3k 0.01% New
62 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 72,14972.1k $826.8k $826.8k 0.00% Unchanged
63 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 67,83967.8k $627.5k $627.5k 0.00% Added +5.6k +5,643
64 MSD Partners, L.P. 0.06% of their portfolio NEW YORK, NY 66,71466.7k $617.1k $617.1k 0.06% Unchanged
65 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 64,53464.5k $596.9k $596.9k 0.00% New
66 Squarepoint Ops LLC 0.00% of their portfolio NEW YORK, NY 63,95764.0k $591.6k $591.6k 0.00% Reduced -26.5k -26,472
67 STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio MADISON, WI 62,83762.8k $581.2k $581.2k 0.00% Added +37.7k +37,678
68 ExodusPoint Capital Management, LP 0.01% of their portfolio NEW YORK, NY 57,41557.4k $531.0k $531.0k 0.01% Added +1.9k +1,900
69 STIFEL FINANCIAL CORP 0.00% of their portfolio ST. LOUIS, MO 55,84655.8k $516.6k $516.6k 0.00% Added +9.4k +9,411
70 Jump Financial, LLC 0.02% of their portfolio Chicago, IL 52,10052.1k $481.9k $481.9k 0.02% Added +25.0k +24,987
71 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 49,72049.7k $459.9k $459.9k 0.00% Added +8.4k +8,354
72 Quantbot Technologies LP 0.03% of their portfolio NEW YORK, NY 45,80145.8k $423.7k $423.7k 0.03% Added +32.5k +32,455
73 Legal & General Group Plc 0.00% of their portfolio London, X0 44,12544.1k $408.2k $408.2k 0.00% Added +21.3k +21,268
74 ANCHOR CAPITAL ADVISORS LLC 0.01% of their portfolio Boston, MA 43,51843.5k $402.5k $402.5k 0.01% Added +4.7k +4,657
75 CREDIT SUISSE AG/ 0.00% of their portfolio ZURICH, V8 42,79042.8k $395.8k $395.8k 0.00% Added +4.2k +4,166
76 SCOGGIN MANAGEMENT LP 0.69% of their portfolio NEW YORK, NY 41,65041.6k $385.3k $385.3k 0.69% New
77 CHARTWELL INVESTMENT PARTNERS, LLC 0.01% of their portfolio BERYWN, PA 41,60541.6k $384.8k $384.8k 0.01% Added +2.0k +2,015
78 UBS Group AG 0.00% of their portfolio ZURICH, V8 40,62040.6k $375.7k $375.7k 0.00% Added +18.8k +18,802
79 Capital Impact Advisors, LLC 0.41% of their portfolio Boston, MA 40,24240.2k $372.2k $372.2k 0.41% Added +2.2k +2,203
80 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 37,78937.8k $349.5k $349.5k 0.00% Added +16.5k +16,493
81 Qube Research & Technologies Ltd 0.00% of their portfolio LONDON, X0 37,75137.8k $349.2k $349.2k 0.00% Reduced -33.1k -33,054
82 New York Life Investment Management LLC 0.00% of their portfolio New York, NY 35,96336.0k $332.7k $332.7k 0.00% Reduced -7.4k -7,378
83 TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY 0.00% of their portfolio FRANKFORT, KY 35,40035.4k $327.0k $327.0k 0.00% Unchanged
84 KEYBANK NATIONAL ASSOCIATION/OH 0.00% of their portfolio BROOKLYN, OH 32,52832.5k $300.9k $300.9k 0.00% Added +2.6k +2,556
85 Summit Global Investments 0.02% of their portfolio BOUNTIFUL, UT 32,10032.1k $297.0k $297.0k 0.02% New
86 MetLife Investment Management, LLC 0.00% of their portfolio Whippany, NJ 28,24128.2k $261.2k $261.2k 0.00% Unchanged
87 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 26,86326.9k $248.5k $248.5k 0.00% Added +44 +44
88 AMERICAN INTERNATIONAL GROUP, INC. 0.00% of their portfolio New York, NY 26,70126.7k $247.0k $247.0k 0.00% Added +815 +815
89 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 26,55926.6k $245.7k $245.7k 0.00% Added +14.2k +14,183
90 Channing Capital Management, LLC 0.01% of their portfolio Chicago, IL 26,30026.3k $243.3k $243.3k 0.01% New
91 Shay Capital LLC 0.08% of their portfolio NEW YORK, NY 25,00025.0k $231.2k $231.2k 0.08% Reduced -24.0k -24,000
92 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 24,02724.0k $222.2k $222.2k 0.00% Reduced -11.2k -11,191
93 Mirae Asset Global Investments Co., Ltd. 0.00% of their portfolio SEOUL, M5 22,93322.9k $212.1k $212.1k 0.00% Unchanged
94 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio Toronto, A6 22,45122.5k $207.7k $207.7k 0.00% Added +2.2k +2,180
95 VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio ATLANTA, GA 22,34322.3k $206.7k $206.7k 0.00% Added +3.1k +3,051
96 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 20,92920.9k $193.6k $193.6k 0.00% Reduced -317 -317
97 FRANKLIN RESOURCES INC 0.00% of their portfolio San Mateo, CA 20,36620.4k $188.4k $188.4k 0.00% Added +33 +33
98 HighTower Advisors, LLC 0.00% of their portfolio CHICAGO, IL 20,24120.2k $163.0k $163.0k 0.00% Added +16 +16
99 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 20,23020.2k $188.0k $188.0k 0.00% Added +746 +746
100 Precept Management LLC 0.40% of their portfolio Dallas, TX 20,20020.2k $186.8k $186.8k 0.40% Added +19.5k +19,500