% of shares outstanding not shown: this line files 20-F annual reports only — a foreign private issuer whose US listing trades as ADSs (depositary receipts), while its cover-page share count is in ORDINARY shares. The depositary ratio is not in our data. The count we hold for this line is 75,620,779 shares (as of 2025-12-31, source dei). Dividing one by the other is wrong by the whole ratio (a 5:1 ADR reads one fifth of the true percentage), so the percentage is withheld rather than served wrong. Holder share counts are shown as filed.
Crowding percentile withheld — no market cap for PKX in the served universe — the cohort is size-matched, and an unmatched percentile would compare a micro-cap register to a mega-cap one.
| # | Holder | Shares | Value | % of shares out | Δ QoQ |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 1,904,2411.9M | $111M | — | ADD 48% |
| 2 | MORGAN STANLEY | 1,148,6401.1M | $67M | — | ADD 29% |
| 3 | DIMENSIONAL FUND ADVISORS LP | 977,101977,101 | $57M | — | — |
| 4 | STATE STREET CORP | 884,887884,887 | $52M | — | ADD 4% |
| 5 | AMERICAN CENTURY COMPANIES INC | 677,586677,586 | $40M | — | ADD 9% |
| 6 | Creative Planning | 338,722338,722 | $20M | — | ADD 59% |
| 7 | NORTHERN TRUST CORP | 292,932292,932 | $17M | — | TRIM -6% |
| 8 | VANGUARD CAPITAL MANAGEMENT LLC | 285,158285,158 | $17M | — | NEW |
| 9 | BNP PARIBAS FINANCIAL MARKETS | 250,885250,885 | $15M | — | — |
| 10 | Quantinno Capital Management LP | 200,529200,529 | $12M | — | ADD 83% |
| 11 | Connor, Clark & Lunn Investment Management Ltd. | 158,308158,308 | $9M | — | TRIM -27% |
| 12 | GOLDMAN SACHS GROUP INC | 156,808156,808 | $9M | — | ADD 24% |
| 13 | VAN ECK ASSOCIATES CORP | 134,575134,575 | $8M | — | TRIM -8% |
| 14 | BARCLAYS PLC | 110,331110,331 | $6M | — | ADD 4693% |
| 15 | BANK OF AMERICA CORP /DE/ | 109,074109,074 | $6M | — | ADD 96% |
| 16 | Vident Advisory, LLC | 92,21992,219 | $5M | — | ADD 30% |
| 17 | NLB Skladi, upravljanje premozenja, d.o.o. | 90,40790,407 | $5M | — | ADD 3% |
| 18 | UBS Group AG | 87,63687,636 | $5M | — | TRIM -56% |
| 19 | Vanguard Personalized Indexing Management, LLC | 87,44487,444 | $5M | — | ADD 67% |
| 20 | QUADRANT CAPITAL GROUP LLC | 82,61782,617 | $5M | — | ADD 22% |
| 21 | STIFEL FINANCIAL CORP | 74,94474,944 | $4M | — | ADD 14% |
| 22 | Ramirez Asset Management, Inc. | 65,71965,719 | $4M | — | ADD 11% |
| 23 | Grantham, Mayo, Van Otterloo & Co. LLC | 52,39352,393 | $3M | — | — |
| 24 | Laird Norton Wetherby Trust Company, LLC | 48,33248,332 | $3M | — | ADD 56% |
| 25 | FMR LLC | 47,17547,175 | $3M | — | ADD 2% |
| 26 | RHUMBLINE ADVISERS | 46,72246,722 | $3M | — | ADD 36% |
| 27 | CIBC WORLD MARKET INC. | 44,96744,967 | $3M | — | — |
| 28 | Corient Private Wealth LLC | 40,06240,062 | $2M | — | TRIM -33% |
| 29 | BANK OF MONTREAL /CAN/ | 38,40438,404 | $2M | — | ADD 4% |
| 30 | Greenline Partners, LLC | 37,84837,848 | $2M | — | TRIM -13% |
| 31 | Frank, Rimerman Advisors LLC | 37,63137,631 | $2M | — | ADD 69% |
| 32 | Sequoia Financial Advisors, LLC | 37,60837,608 | $2M | — | ADD 58% |
| 33 | O'SHAUGHNESSY ASSET MANAGEMENT, LLC | 37,44637,446 | $2M | — | ADD 6% |
| 34 | DekaBank Deutsche Girozentrale | 36,01736,017 | $2M | — | — |
| 35 | Cerity Partners LLC | 34,21434,214 | $2M | — | ADD 51% |
| 36 | US BANCORP \DE\ | 33,26233,262 | $2M | — | ADD 48% |
| 37 | D. E. Shaw & Co., Inc. | 31,51131,511 | $2M | — | ADD 138% |
| 38 | Point72 Asset Management, L.P. | 31,50231,502 | $2M | — | TRIM -54% |
| 39 | YOUSIF CAPITAL MANAGEMENT, LLC | 29,08329,083 | $2M | — | — |
| 40 | IEQ CAPITAL, LLC | 28,37628,376 | $2M | — | ADD 35% |
| 41 | Mariner, LLC | 26,92326,923 | $2M | — | ADD 39% |
| 42 | SIGNATUREFD, LLC | 26,35326,353 | $2M | — | ADD 29% |
| 43 | Recurrent Investment Advisors LLC | 24,96024,960 | $1M | — | — |
| 44 | BAROMETER CAPITAL MANAGEMENT INC. | 23,80023,800 | $1M | — | NEW |
| 45 | PNC FINANCIAL SERVICES GROUP, INC. | 22,69922,699 | $1M | — | ADD 20% |
| 46 | OVERSEA-CHINESE BANKING Corp Ltd | 22,31022,310 | $1M | — | TRIM -53% |
| 47 | Engineers Gate Manager LP | 20,20120,201 | $1M | — | ADD 7% |
| 48 | Ballentine Partners, LLC | 18,33518,335 | $1M | — | ADD 71% |
| 49 | GUGGENHEIM CAPITAL LLC | 18,13418,134 | $1M | — | ADD 94% |
| 50 | XTX Topco Ltd | 17,85517,855 | $1M | — | ADD 100% |
| 51 | Clearbridge Investments, LLC | 17,38217,382 | $1M | — | ADD 2% |
| 52 | FIRST TRUST ADVISORS LP | 15,82015,820 | $925,337 | — | ADD 119% |
| 53 | VOLORIDGE INVESTMENT MANAGEMENT, LLC | 15,23915,239 | $891,329 | — | NEW |
| 54 | West Family Investments, Inc. | 15,23215,232 | $890,920 | — | ADD 66% |
| 55 | Rockefeller Capital Management L.P. | 15,15715,157 | $886,533 | — | ADD 196% |
| 56 | Nuveen, LLC | 14,48614,486 | $847,286 | — | ADD 2% |
| 57 | RENAISSANCE TECHNOLOGIES LLC | 13,91113,911 | $813,654 | — | NEW |
| 58 | Bridgewater Advisors Inc. | 9,6859,685 | $796,470 | — | ADD 71% |
| 59 | Vise Technologies, Inc. | 14,87414,874 | $791,452 | — | — |
| 60 | NEUBERGER BERMAN GROUP LLC | 13,19713,197 | $771,873 | — | ADD 39% |
| 61 | CITIGROUP INC | 13,03113,031 | $762,183 | — | ADD 32% |
| 62 | AQR CAPITAL MANAGEMENT LLC | 12,97712,977 | $759,041 | — | ADD 13% |
| 63 | Brooklyn Investment Group | 12,65312,653 | $740,074 | — | ADD 125% |
| 64 | Venturi Wealth Management, LLC | 12,38612,386 | $724,458 | — | ADD 102% |
| 65 | Parallel Advisors, LLC | 12,22512,225 | $715,052 | — | ADD 57% |
| 66 | PCM Encore, LLC | 12,15412,154 | $710,887 | — | ADD 9% |
| 67 | Aquatic Capital Management LLC | 11,50211,502 | $672,752 | — | ADD 46% |
| 68 | Blue Trust, Inc. | 11,23011,230 | $656,843 | — | TRIM -34% |
| 69 | DMC Group, LLC | 10,46210,462 | $611,922 | — | — |
| 70 | TWO SIGMA INVESTMENTS, LP | 10,09210,092 | $590,281 | — | TRIM -54% |
| 71 | JANE STREET GROUP, LLC | 10,03710,037 | $587,064 | — | ADD 77% |
| 72 | XPONANCE LLC | 9,4899,489 | $555,012 | — | ADD 114% |
| 73 | Pathstone Holdings, LLC | 9,2479,247 | $540,881 | — | — |
| 74 | Caprock Group, LLC | 9,1589,158 | $539,308 | — | ADD 8% |
| 75 | SCHRODER INVESTMENT MANAGEMENT GROUP | 9,5319,531 | $537,167 | — | — |
| 76 | Compound Planning, Inc. | 9,0669,066 | $530,290 | — | ADD 10% |
| 77 | PDS Planning, Inc | 8,9828,982 | $525,357 | — | ADD 40% |
| 78 | LPL Financial LLC | 8,5128,512 | $497,841 | — | ADD 27% |
| 79 | Aaron Wealth Advisors LLC | 8,4958,495 | $496,873 | — | NEW |
| 80 | Advisors Asset Management, Inc. | 8,4918,491 | $496,639 | — | — |
| 81 | EVERGREEN CAPITAL MANAGEMENT LLC | 7,7807,780 | $455,053 | — | ADD 6% |
| 82 | HighTower Advisors, LLC | 7,4537,453 | $435,926 | — | NEW |
| 83 | OSAIC HOLDINGS, INC. | 7,4277,427 | $434,402 | — | ADD 1394% |
| 84 | SYON CAPITAL LLC | 7,3767,376 | $431,422 | — | ADD 43% |
| 85 | GAMMA Investing LLC | 6,6276,627 | $387,613 | — | ADD 39% |
| 86 | AXQ CAPITAL, LP | 6,5246,524 | $381,589 | — | NEW |
| 87 | Graham Capital Management, L.P. | 6,5016,501 | $380,243 | — | ADD 3% |
| 88 | PROFUND ADVISORS LLC | 6,3896,389 | $373,693 | — | TRIM -10% |
| 89 | Summit Global Investments | 6,2826,282 | $367,000 | — | TRIM -48% |
| 90 | UNITED CAPITAL FINANCIAL ADVISORS, LLC | 6,1976,197 | $362,463 | — | NEW |
| 91 | Ethic Inc. | 6,0306,030 | $352,680 | — | ADD 28% |
| 92 | Savant Capital, LLC | 5,5555,555 | $324,937 | — | NEW |
| 93 | Generali Investments CEE, investicni spolecnost, a.s. | 5,5005,500 | $321,695 | — | — |
| 94 | ROYAL BANK OF CANADA | 5,1845,184 | $303,000 | — | TRIM -2% |
| 95 | Crossmark Global Holdings, Inc. | 5,0905,090 | $297,714 | — | NEW |
| 96 | HB Wealth Management, LLC | 4,8734,873 | $285,022 | — | NEW |
| 97 | LGT Group Foundation | 4,8654,865 | $284,554 | — | — |
| 98 | WELLS FARGO & COMPANY/MN | 4,6854,685 | $274,005 | — | ADD 8% |
| 99 | Crestwood Advisors Group, LLC | 4,5534,553 | $266,305 | — | NEW |
| 100 | GREENLEAF TRUST | 4,4514,451 | $260,339 | — | NEW |
Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.
| Holder | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 742K | 821K | 855K | 1.0M | 1.3M | 1.9M | $111M |
| MORGAN STANLEY | 1.2M | 1.1M | 803K | 802K | 889K | 1.1M | $67M |
| DIMENSIONAL FUND ADVISORS LP | 1.2M | 1.1M | 1.0M | 1.0M | 980K | 977K | $57M |
| STATE STREET CORP | 774K | 798K | 795K | 809K | 850K | 885K | $52M |
| AMERICAN CENTURY COMPANIES INC | 369K | 403K | 482K | 550K | 622K | 678K | $40M |
| Creative Planning | 66K | 113K | 104K | 137K | 213K | 339K | $20M |
| NORTHERN TRUST CORP | 429K | 451K | 447K | 375K | 310K | 293K | $17M |
| VANGUARD CAPITAL MANAGEMENT LLC | — | — | — | — | — | 285K | $17M |
| BNP PARIBAS FINANCIAL MARKETS | 254K | 240K | 259K | 254K | 251K | 251K | $15M |
| Quantinno Capital Management LP | 16K | 31K | 50K | 73K | 110K | 201K | $12M |
| Connor, Clark & Lunn Investment Management Ltd. | 385K | 287K | 161K | 174K | 217K | 158K | $9M |
| GOLDMAN SACHS GROUP INC | 269K | 423K | 168K | 163K | 127K | 157K | $9M |
| VAN ECK ASSOCIATES CORP | 101K | 92K | 91K | 101K | 147K | 135K | $8M |
| BARCLAYS PLC | — | — | 2K | 1K | 2K | 110K | $6M |
| BANK OF AMERICA CORP /DE/ | 47K | 54K | 27K | 20K | 56K | 109K | $6M |
Shares reported each quarter by the largest current holders. Green = added vs the prior filing, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.
Holder count only — too few computable %-of-shares-outstanding quarters for a % pane. Line breaks are quarters with no 13F record, never interpolated.
Short interest has its own tab now — open SI →
Source: SEC Form 13F — every institution manager (≥ $100M in 13F securities) reporting a long US-listed position, across ~10,250 filers over 10 years of history. 13F is long-only, US-listed, filed up to 45 days after quarter-end.
| Holder | % of class | Type | As of | |
|---|---|---|---|---|
| BlackRock, Inc. | 5.2% | QII | 2026-03-31 | SEC → |
Source: SEC Schedule 13D/13G structured XML. 13D = active intent; 13G filers report passively (Rule 13d-1(b) QII / 13d-1(c) Passive / 13d-1(d) Exempt) and are not activists. Percent and delta are the group aggregate the filing reports. Structured 13D/G coverage begins December 2024 (SEC XML mandate).
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| BlackRock, Inc. | +614,201 | $36M | ADD |
| VANGUARD CAPITAL MANAGEMENT LLC | +285,158 | $17M | OPEN |
| MORGAN STANLEY | +260,068 | $15M | ADD |
| Creative Planning | +126,076 | $7M | ADD |
| BARCLAYS PLC | +108,029 | $6M | ADD |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| VANGUARD GROUP INC | −285,158 | $17M | CLOSE |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | −175,046 | $10M | CLOSE |
| UBS Group AG | −112,278 | $7M | TRIM |
| Connor, Clark & Lunn Investment Management Ltd. | −59,059 | $3M | TRIM |
| Point72 Asset Management, L.P. | −37,034 | $2M | TRIM |
The 2025-Q4 register is as-filed in ITS OWN share basis; every count below was rebased into the 2026-Q1 basis (no split in between, factor 1). Dollar figures value the SHARE delta at one price — the 2026-03-31 close — rather than differencing two filings' own reported values, which would mix the quarter's price move into the trade figure.
13Fs disclose LONG US-listed positions only — shorts, most derivatives, bonds and non-US listings are invisible here, and a filer's quarter-over-quarter change is not necessarily a trade (index rebalances, in-kind transfers and entity successions all read as flow).
| Quarter | Holders | Shares held | % shares out | Value held |
|---|---|---|---|---|
| 2026-Q1 | 168 | 9,682,019 | — | $567M |
| 2025-Q4 | 149 | 8,410,819 | — | $449M |
| 2025-Q3 | 139 | 7,506,568 | — | $369M |
| 2025-Q2 | 142 | 7,184,290 | — | $348M |
| 2025-Q1 | 143 | 10,061,421 | — | $487M |
| 2024-Q4 | 152 | 8,779,615 | — | $381M |
| 2024-Q3 | 163 | 10,972,129 | — | $767M |
| 2024-Q2 | 150 | 6,963,874 | — | $458M |
| 2024-Q1 | 163 | 8,249,131 | — | $647M |
| 2023-Q4 | 176 | 7,684,815 | — | $768M |
| 2023-Q3 | 160 | 7,305,851 | — | $790M |
| 2023-Q2 | 165 | 8,891,034 | — | $687M |
| 2023-Q1 | 171 | 11,202,827 | — | $798M |
| 2022-Q4 | 152 | 10,672,852 | — | $546M |
| 2022-Q3 | 145 | 10,113,357 | — | $403M |
| 2022-Q2 | 162 | 10,291,089 | — | $494M |
| 2022-Q1 | 168 | 10,553,184 | — | $670M |
| 2021-Q4 | 176 | 10,509,098 | — | $613M |
| 2021-Q3 | 175 | 10,304,576 | — | $710M |
| 2021-Q2 | 181 | 12,088,981 | — | $924M |
| 2021-Q1 | 177 | 11,787,019 | — | $840M |
| 2020-Q4 | 145 | 11,175,115 | — | $696M |
| 2020-Q3 | 129 | 11,388,280 | — | $477M |
| 2020-Q2 | 135 | 10,970,146 | — | $406M |
| 2020-Q1 | 136 | 11,085,050 | — | $362M |
| 2019-Q4 | 152 | 15,123,415 | — | $766M |
| 2019-Q3 | 153 | 15,686,390 | — | $740M |
| 2019-Q2 | 157 | 15,888,589 | — | $843M |
| 2019-Q1 | 172 | 15,904,084 | — | $880M |
| 2018-Q4 | 178 | 17,100,364 | — | $943M |
| 2018-Q3 | 187 | 17,313,183 | — | $1.1B |
| 2018-Q2 | 193 | 18,172,563 | — | $1.3B |
| 2018-Q1 | 195 | 17,493,937 | — | $1.4B |
| 2017-Q4 | 198 | 17,004,829 | — | $1.3B |
| 2017-Q3 | 171 | 17,359,723 | — | $1.2B |
| 2017-Q2 | 158 | 16,569,700 | — | $1.0B |
| 2017-Q1 | 170 | 19,234,258 | — | $3.4B |
| 2016-Q4 | 159 | 18,604,095 | — | $980M |
| 2016-Q3 | 149 | 17,773,128 | — | $907M |
| 2016-Q2 | 155 | 19,647,981 | — | $874M |
| 2016-Q1 | 134 | 20,584,716 | — | $958M |
| 2015-Q4 | 122 | 20,348,908 | — | $720M |
| 2015-Q3 | 137 | 25,153,057 | — | $881M |
| 2015-Q2 | 136 | 23,269,321 | — | $1.1B |
| 2015-Q1 | 145 | 22,049,450 | — | $1.3B |
| 2014-Q4 | 169 | 21,360,575 | — | $1.4B |
| 2014-Q3 | 164 | 24,673,055 | — | $1.9B |
| 2014-Q2 | 145 | 25,022,114 | — | $1.9B |
| 2014-Q1 | 140 | 23,125,268 | — | $1.6B |
| 2013-Q4 | 149 | 23,901,160 | — | $1.9B |
| 2013-Q3 | 136 | 25,244,675 | — | $1.9B |
| 2013-Q2 | 131 | 29,513,126 | — | $1.9B |
| 2013-Q1 | 11 | 1,128,445 | — | $83M |
