Vault-13

KT CORP KT

SPONSORED ADR · ADR · CUSIP 48268K101 · ISIN US48268K1016

South Korean telecommunication service provider

236 institutional holders -9 vs Q3 2025
141,754,296141.8m shares reported held*
$2.7bnreported value*
29 new 75 added 103 reduced 40 sold out net bought ≈ $7.5m (+393.1k 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 ($6.8m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $18.97. Options: 2 managers hold calls ($100.5k notional), 1 hold puts ($1.9k).

Trends to Q4 2025

Institutional holders

Managers reporting a position, each quarter

0100200300Q3 22: 159Q4 22: 160Q1 23: 143Q2 23: 155Q3 23: 163Q4 23: 183Q1 24: 178Q2 24: 176Q3 24: 190Q4 24: 213Q1 25: 224Q2 25: 241Q3 25: 245Q4 25: 236236Q3 22Q2 23Q1 24Q4 24Q4 25
Numbers
QuarterHolders
Q3 2022159
Q4 2022160
Q1 2023143
Q2 2023155
Q3 2023163
Q4 2023183
Q1 2024178
Q2 2024176
Q3 2024190
Q4 2024213
Q1 2025224
Q2 2025241
Q3 2025245
Q4 2025236

Buyers vs sellers

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

Bought or addedCut or sold out
2000200Q1 24: 84 bought or addedQ1 24: 92 cut or sold outQ2 24: 98 bought or addedQ2 24: 72 cut or sold outQ2 24Q3 24: 113 bought or addedQ3 24: 62 cut or sold outQ4 24: 126 bought or addedQ4 24: 80 cut or sold outQ4 24Q1 25: 126 bought or addedQ1 25: 97 cut or sold outQ2 25: 135 bought or addedQ2 25: 98 cut or sold outQ2 25Q3 25: 138 bought or addedQ3 25: 104 cut or sold outQ4 25: 104 bought or addedQ4 25: 143 cut or sold outQ4 25
Numbers
QuarterBought or addedCut or sold out
Q1 20248492
Q2 20249872
Q3 202411362
Q4 202412680
Q1 202512697
Q2 202513598
Q3 2025138104
Q4 2025104143

Calls vs puts

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

CallsPuts
$0$200k$400k$600kQ1 25 calls: $247.4kQ1 25 puts: $1.8kQ1 25P/C 0.01Q2 25 calls: $51.9kQ2 25 puts: $0Q2 25P/C 0.00Q3 25 calls: $457.7kQ3 25 puts: $3.0kQ3 25P/C 0.01Q4 25 calls: $100.5kQ4 25 puts: $1.9kQ4 25P/C 0.02
Numbers
QuarterCallsPutsP/C
Q1 2025$247.4k$1.8k0.01
Q2 2025$51.9k$00.00
Q3 2025$457.7k$3.0k0.01
Q4 2025$100.5k$1.9k0.02

Biggest buyers

WELLINGTON MANAGEMENT GROUP LLP Added +8,542,124+8.5m
NAN FUNG TRINITY (HK) LTD New +1,492,440+1.5m
Kopernik Global Investors, LLC Added +1,213,304+1.2m
JPMORGAN CHASE & CO Added +864,461+864.5k
DEUTSCHE BANK AG\ Added +850,900+850.9k
Connor, Clark & Lunn Investment Management Ltd. New +397,275+397.3k
VOLORIDGE INVESTMENT MANAGEMENT, LLC Added +376,384+376.4k
Oasis Management Co Ltd. New +358,589+358.6k
D. E. Shaw & Co., Inc. Added +320,701+320.7k
Mondrian Investment Partners LTD Added +293,476+293.5k

Biggest sellers

BlackRock, Inc. Reduced -3,520,317-3.5m
Robeco Institutional Asset Management B.V. Reduced -2,607,812-2.6m
UBS Group AG Reduced -734,723-734.7k
FMR LLC Reduced -721,006-721.0k
MORGAN STANLEY Reduced -720,244-720.2k
RENAISSANCE TECHNOLOGIES LLC Reduced -682,100-682.1k
ACADIAN ASSET MANAGEMENT LLC Reduced -674,578-674.6k
Man Group plc Reduced -622,258-622.3k
BANK OF AMERICA CORP /DE/ Reduced -563,595-563.6k
ALLIANCEBERNSTEIN L.P. Reduced -556,240-556.2k

Biggest calls

SIMPLEX TRADING, LLC Added $81.6k4.3k shares
GROUP ONE TRADING LLC Reduced $19.0k1.0k shares

Biggest puts

SIMPLEX TRADING, LLC Reduced $1.9k100 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
WELLINGTON MANAGEMENT GROUP LLP 13G · institution +1.5 pts · filed 2026-08-13 8.0% +1.5 pts 19.4m 2026-08-13

Insider purchases and sales in Q4 2025

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.

None reported in Q4 2025.

Holders, Q4 2025

#ManagerLocationShares Value% of their portfolioChangeShares change
1 WELLINGTON MANAGEMENT GROUP LLP 0.07% of their portfolio Boston, MA 20,780,87220.8m $394.2m $394.2m 0.07% Added +8.5m +8,542,124
2 PRICE T ROWE ASSOCIATES INC /MD/ 0.02% of their portfolio BALTIMORE, MD 10,756,04010.8m $204.0m $204.0m 0.02% Reduced -31.5k -31,513
3 Capital International Investors 0.03% of their portfolio Los Angeles, CA 10,750,37810.8m $203.9m $203.9m 0.03% Added +73.1k +73,128
4 Niatross Investments Ltd 100.00% of their portfolio HONG KONG, K3 8,326,9958.3m $158.0m $158.0m 100.00% First filing
5 Kopernik Global Investors, LLC 8.74% of their portfolio TAMPA, FL 5,768,7525.8m $109.4m $109.4m 8.74% Added +1.2m +1,213,304
6 MORGAN STANLEY 0.01% of their portfolio NEW YORK, NY 5,767,9635.8m $109.4m $109.4m 0.01% Reduced -720.2k -720,244
7 Boston Partners 0.10% of their portfolio BOSTON, MA 5,074,0395.1m $96.3m $96.3m 0.10% Added +209.3k +209,265
8 Robeco Institutional Asset Management B.V. 0.14% of their portfolio ROTTERDAM, P7 5,022,8415.0m $95.3m $95.3m 0.14% Reduced -2.6m -2,607,812
9 Allspring Global Investments Holdings, LLC 0.15% of their portfolio CHARLOTTE, NC 4,986,8935.0m $94.6m $94.6m 0.15% Added +123.3k +123,300
10 Capital Research Global Investors 0.02% of their portfolio Los Angeles, CA 4,966,5905.0m $94.2m $94.2m 0.02% Added +292.2k +292,210
11 North of South Capital LLP 7.72% of their portfolio LONDON, X0 4,529,4114.5m $85.9m $85.9m 7.72% Added +246.1k +246,124
12 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 3,747,6853.7m $71.1m $71.1m 0.00% Added +864.5k +864,461
13 ACADIAN ASSET MANAGEMENT LLC 0.12% of their portfolio Boston, MA 3,708,3133.7m $70.3m $70.3m 0.12% Reduced -674.6k -674,578
14 BlackRock, Inc. 0.00% of their portfolio New York, NY 3,227,2023.2m $61.2m $61.2m 0.00% Reduced -3.5m -3,520,317
15 LAZARD ASSET MANAGEMENT LLC 0.10% of their portfolio NEW YORK, NY 3,144,6893.1m $59.7m $59.7m 0.10% Reduced -139.7k -139,687
16 ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.03% of their portfolio BOSTON, MA 2,959,1133.0m $56.1m $56.1m 0.03% Reduced -123.5k -123,481
17 Mondrian Investment Partners LTD 0.92% of their portfolio LONDON, X0 2,952,0923.0m $56.0m $56.0m 0.92% Added +293.5k +293,476
18 Rockefeller Capital Management L.P. 0.08% of their portfolio NEW YORK, NY 2,462,7022.5m $46.7m $46.7m 0.08% Added +18.2k +18,199
19 Capital International, Inc./CA/ 0.33% of their portfolio Los Angeles, CA 2,185,3962.2m $41.5m $41.5m 0.33% Added +112.2k +112,236
20 Russell Investments Group, Ltd. 0.03% of their portfolio Seattle, WA 1,542,2741.5m $29.3m $29.3m 0.03% Reduced -494.3k -494,332
21 NAN FUNG TRINITY (HK) LTD 2.24% of their portfolio CENTRAL, HONG KONG, K3 1,492,4401.5m $28.3m $28.3m 2.24% New
22 Qube Research & Technologies Ltd 0.04% of their portfolio LONDON, X0 1,396,3851.4m $26.5m $26.5m 0.04% Reduced -56.0k -55,956
23 TWO SIGMA INVESTMENTS, LP 0.04% of their portfolio NEW YORK, NY 1,360,3911.4m $25.8m $25.8m 0.04% Reduced -138.6k -138,647
24 MILLENNIUM MANAGEMENT LLC 0.02% of their portfolio NEW YORK, NY 1,307,2491.3m $24.8m $24.8m 0.02% Added +122.9k +122,907
25 TWO SIGMA ADVISERS, LP 0.04% of their portfolio NEW YORK, NY 1,176,5001.2m $22.3m $22.3m 0.04% Reduced -134.8k -134,800
26 VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.07% of their portfolio JUPITER, FL 979,925979.9k $18.6m $18.6m 0.07% Added +376.4k +376,384
27 DEUTSCHE BANK AG\ 0.01% of their portfolio FRANKFURT AM MAIN, 2M 975,900975.9k $18.5m $18.5m 0.01% Added +850.9k +850,900
28 SEI INVESTMENTS CO 0.02% of their portfolio OAKS, PA 960,577960.6k $18.2m $18.2m 0.02% Reduced -111.7k -111,698
29 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 890,035890.0k $16.9m $16.9m 0.00% Reduced -563.6k -563,595
30 ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio Berwyn, PA 810,533810.5k $15.4m $15.4m 0.00% Reduced -149.9k -149,912
31 UBS Group AG 0.00% of their portfolio ZURICH, V8 773,132773.1k $14.7m $14.7m 0.00% Reduced -734.7k -734,723
32 FMR LLC 0.00% of their portfolio BOSTON, MA 720,088720.1k $13.7m $13.7m 0.00% Reduced -721.0k -721,006
33 Pictet Asset Management Holding SA 0.01% of their portfolio CAROUGE, V8 677,301677.3k $12.8m $12.8m 0.01% Reduced -65.0k -64,979
34 BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio PARIS, I0 635,814635.8k $12.1m $12.1m 0.01% Reduced -83.6k -83,590
35 Man Group plc 0.02% of their portfolio LONDON, X0 609,153609.2k $11.6m $11.6m 0.02% Reduced -622.3k -622,258
36 Allianz Asset Management GmbH 0.01% of their portfolio MUNICH, 2M 587,074587.1k $11.1m $11.1m 0.01% Reduced -23.3k -23,257
37 NATIONAL BANK OF CANADA /FI/ 0.01% of their portfolio MONTREAL, A8 560,518560.5k $10.6m $10.6m 0.01% Added +13.6k +13,647
38 D. E. Shaw & Co., Inc. 0.01% of their portfolio New York, NY 528,918528.9k $10.0m $10.0m 0.01% Added +320.7k +320,701
39 Jump Financial, LLC 0.10% of their portfolio Chicago, IL 414,700414.7k $7.9m $7.9m 0.10% Reduced -89.7k -89,715
40 Tidal Investments LLC 0.03% of their portfolio Milwaukee, WI 414,365414.4k $7.9m $7.9m 0.03% Reduced -4.9k -4,891
41 Point72 Asset Management, L.P. 0.01% of their portfolio STAMFORD, CT 407,488407.5k $7.7m $7.7m 0.01% Added +287.1k +287,088
42 Connor, Clark & Lunn Investment Management Ltd. 0.02% of their portfolio VANCOUVER, A1 397,275397.3k $7.5m $7.5m 0.02% New
43 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 394,012394.0k $7.5m $7.5m 0.00% Reduced -556.2k -556,240
44 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 378,949378.9k $7.2m $7.2m 0.00% Reduced -219.2k -219,162
45 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 378,691378.7k $7.2m $7.2m 0.00% Reduced -34.5k -34,505
46 Oasis Management Co Ltd. 0.88% of their portfolio GRAND CAYMAN, E9 358,589358.6k $6.8m $6.8m 0.88% New
47 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 352,538352.5k $6.7m $6.7m 0.00% Reduced -949 -949
48 RENAISSANCE GROUP LLC 0.25% of their portfolio Covington, KY 322,548322.5k $6.1m $6.1m 0.25% Reduced -24.3k -24,340
49 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 314,481314.5k $6.0m $6.0m 0.00% Reduced -7.2k -7,230
50 US BANCORP \DE\ 0.01% of their portfolio MINNEAPOLIS, MN 297,769297.8k $5.6m $5.6m 0.01% Reduced -84.1k -84,053
51 MARSHALL WACE, LLP 0.01% of their portfolio LONDON, X0 293,596293.6k $5.6m $5.6m 0.01% Reduced -459.6k -459,576
52 O'SHAUGHNESSY ASSET MANAGEMENT, LLC 0.03% of their portfolio Stamford, CT 271,508271.5k $5.2m $5.2m 0.03% Reduced -40.9k -40,882
53 RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio ST. PETERSBURG, FL 270,429270.4k $5.1m $5.1m 0.00% Added +13.5k +13,492
54 TODD ASSET MANAGEMENT LLC 0.10% of their portfolio Louisville, KY 258,570258.6k $4.9m $4.9m 0.10% Added +60.5k +60,525
55 TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY 0.04% of their portfolio FRANKFORT, KY 256,750256.8k $4.9m $4.9m 0.04% Added +60.1k +60,100
56 INDUS CAPITAL PARTNERS, LLC 15.48% of their portfolio NEW YORK, NY 252,500252.5k $4.8m $4.8m 15.48% Unchanged
57 Vestmark Advisory Solutions, Inc. 0.06% of their portfolio Wakefield, MA 236,231236.2k $4.5m $4.5m 0.06% New
58 BANK OF MONTREAL /CAN/ 0.00% of their portfolio TORONTO, A6 220,713220.7k $4.2m $4.2m 0.00% New
59 CAPITAL FUND MANAGEMENT S.A. 0.04% of their portfolio PARIS, I0 217,932217.9k $4.1m $4.1m 0.04% Added +98.2k +98,218
60 Vident Advisory, LLC 0.04% of their portfolio Alpharetta, GA 204,515204.5k $3.9m $3.9m 0.04% Reduced -2.8k -2,795
61 ASSETMARK, INC 0.01% of their portfolio CONCORD, CA 199,920199.9k $3.8m $3.8m 0.01% Added +7.1k +7,079
62 apricus wealth, LLC 1.88% of their portfolio BEAUFORT, SC 194,045194.0k $3.7m $3.7m 1.88% Added +4.4k +4,425
63 Creative Planning 0.00% of their portfolio OVERLAND PARK, KS 193,397193.4k $3.7m $3.7m 0.00% Reduced -1.8k -1,761
64 DGS Capital Management, LLC 0.57% of their portfolio JERSEY CITY, NJ 175,178175.2k $3.3m $3.3m 0.57% Added +2.4k +2,400
65 Ramirez Asset Management, Inc. 0.42% of their portfolio NEW YORK, NY 169,457169.5k $3.2m $3.2m 0.42% Reduced -12.0k -11,985
66 Caisse de depot et placement du Quebec 0.01% of their portfolio Montreal, A8 166,004166.0k $3.1m $3.1m 0.01% Reduced -187.0k -187,000
67 NATIONS FINANCIAL GROUP INC, /IA/ /ADV 0.16% of their portfolio CEDAR RAPIDS, IA 158,500158.5k $3.0m $3.0m 0.16% Reduced -16 -16
68 CAPITAL INTERNATIONAL SARL 0.05% of their portfolio Los Angeles, CA 152,764152.8k $2.9m $2.9m 0.05% Added +3.4k +3,428
69 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 150,493150.5k $2.9m $2.9m 0.00% Reduced -682.1k -682,100
70 QUADRANT CAPITAL GROUP LLC 0.08% of their portfolio CINCINNATI, OH 138,485138.5k $2.6m $2.6m 0.08% Added +113.9k +113,877
71 FIRST TRUST ADVISORS LP 0.00% of their portfolio Wheaton, IL 134,720134.7k $2.6m $2.6m 0.00% Added +13.4k +13,380
72 Corient Private Wealth LP 0.00% of their portfolio MIAMI, FL 123,480123.5k $2.3m $2.3m 0.00% Added +63.8k +63,750
73 AIA Group Ltd 0.03% of their portfolio HONG KONG, K3 120,360120.4k $2.3m $2.3m 0.03% Added +28.2k +28,156
74 CLOVERFIELDS CAPITAL GROUP, LP 0.67% of their portfolio MINNEAPOLIS, MN 114,305114.3k $2.2m $2.2m 0.67% Added +1.4k +1,440
75 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 113,164113.2k $2.1m $2.1m 0.00% Added +3.1k +3,065
76 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 111,786111.8k $2.1m $2.1m 0.00% Reduced -339.0k -339,020
77 STOREBRAND ASSET MANAGEMENT AS 0.01% of their portfolio LYSAKER, Q8 109,700109.7k $2.1m $2.1m 0.01% Unchanged
78 Ethic Inc. 0.03% of their portfolio NEW YORK, NY 105,170105.2k $2.0m $2.0m 0.03% Reduced -13.3k -13,336
79 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.01% of their portfolio COLUMBUS, OH 97,14597.1k $1.8m $1.8m 0.01% Added +36.1k +36,105
80 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 93,35493.4k $1.8m $1.8m 0.00% Reduced -130.0k -130,006
81 LSV ASSET MANAGEMENT 0.00% of their portfolio CHICAGO, IL 89,70089.7k $1.7m $1.7m 0.00% Unchanged
82 Tweedy, Browne Co LLC 0.13% of their portfolio Stamford, CT 87,40987.4k $1.7m $1.7m 0.13% Added +16.8k +16,818
83 EXCHANGE TRADED CONCEPTS, LLC 0.01% of their portfolio Oklahoma City, OK 87,40987.4k $1.7m $1.7m 0.01% Added +16.8k +16,818
84 Quantinno Capital Management LP 0.00% of their portfolio NEW YORK, NY 79,04179.0k $1.5m $1.5m 0.00% Added +7.5k +7,453
85 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 74,29374.3k $1.4m $1.4m 0.00% Added +404 +404
86 Vontobel Holding Ltd. 0.00% of their portfolio ZURICH, V8 72,23872.2k $1.4m $1.4m 0.00% Added +38.2k +38,244
87 Caprock Group, LLC 0.03% of their portfolio BOISE, ID 71,20771.2k $1.4m $1.4m 0.03% Reduced -8.4k -8,396
88 Aquatic Capital Management LLC 0.04% of their portfolio CHICAGO, IL 67,41667.4k $1.3m $1.3m 0.04% Reduced -41.6k -41,608
89 Quantbot Technologies LP 0.04% of their portfolio NEW YORK, NY 66,23366.2k $1.3m $1.3m 0.04% Added +62.1k +62,079
90 Vanguard Personalized Indexing Management, LLC 0.01% of their portfolio OAKLAND, CA 66,19466.2k $1.3m $1.3m 0.01% Added +10.3k +10,304
91 Mariner, LLC 0.00% of their portfolio Overland Park, KS 64,97665.0k $1.2m $1.2m 0.00% Reduced -3.1k -3,067
92 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 63,40763.4k $1.2m $1.2m 0.00% Reduced -2.5k -2,459
93 Redhawk Wealth Advisors, Inc. 0.13% of their portfolio MINNEAPOLIS, MN 62,43562.4k $1.2m $1.2m 0.13% Reduced -4.2k -4,200
94 DIVERSIFY WEALTH MANAGEMENT, LLC 0.05% of their portfolio SANDY, UT 61,04161.0k $1.2m $1.2m 0.05% Reduced -6.0k -6,048
95 Vise Technologies, Inc. 0.02% of their portfolio NEW YORK, NY 59,89759.9k $1.1m $1.1m 0.02% Reduced -4.1k -4,127
96 NorthCoast Asset Management LLC 0.02% of their portfolio STAMFORD, CT 57,06557.1k $1.1m $1.1m 0.02% Added +380 +380
97 CAPTRUST FINANCIAL ADVISORS 0.00% of their portfolio RALEIGH, NC 55,17755.2k $1.0m $1.0m 0.00% New
98 Squarepoint Ops LLC 0.00% of their portfolio NEW YORK, NY 54,17354.2k $1.0m $1.0m 0.00% Added +42.6k +42,642
99 NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 0.00% of their portfolio PHILADELPHIA, PA 51,33751.3k $974.0k $974.0k 0.00% First filing
100 Orion Porfolio Solutions, LLC 0.01% of their portfolio OMAHA, NE 49,58949.6k $940.7k $940.7k 0.01% Added +2.5k +2,531