% 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 752,761,058 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 TGS in the served universe — the cohort is size-matched, and an unmatched percentile would compare a micro-cap register to a mega-cap one.
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 |
|---|---|---|---|---|---|---|---|
| Helikon Investments Ltd | — | — | — | 2.9M | 3.3M | 2.3M | $81M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 1.5M | 1.5M | 1.6M | 1.2M | 1.1M | 1.1M | $39M |
| SPX Gestao de Recursos Ltda | — | — | 837K | 578K | 1.2M | 1.0M | $35M |
| North of South Capital LLP | — | 25K | 37K | — | — | 641K | $22M |
| TT International Asset Management LTD | 1.2M | 1.2M | 994K | 933K | 387K | 608K | $21M |
| MORGAN STANLEY | 286K | 245K | 318K | 411K | 487K | 591K | $20M |
| Fundamenta Capital S.A. | — | — | — | — | 597K | 570K | $20M |
| Vennlight Capital Management, LP | — | — | — | — | — | 274K | $9M |
| MACKENZIE FINANCIAL CORP | — | — | 48K | 127K | 126K | 248K | $9M |
| VR Advisory Services Ltd | 628K | 432K | 216K | 195K | 195K | 195K | $7M |
| CITIGROUP INC | 12K | — | — | — | 82K | 189K | $7M |
| WEXFORD CAPITAL LP | — | — | — | — | 90K | 172K | $6M |
| CI INVESTMENTS INC. | — | — | — | — | 164K | 154K | $5M |
| BNP PARIBAS FINANCIAL MARKETS | 4 | — | 744 | 8K | 76K | 142K | $5M |
| CITADEL ADVISORS LLC | 139K | 93K | — | 59K | 110K | 133K | $5M |
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.
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| North of South Capital LLP | +640,999 | $22M | OPEN |
| Vennlight Capital Management, LP | +274,049 | $9M | OPEN |
| TT International Asset Management LTD | +221,220 | $8M | ADD |
| MACKENZIE FINANCIAL CORP | +121,640 | $4M | ADD |
| CITIGROUP INC | +106,492 | $4M | ADD |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| Helikon Investments Ltd | −935,932 | $32M | TRIM |
| Fourth Sail Capital LP | −191,630 | $7M | CLOSE |
| SPX Gestao de Recursos Ltda | −181,667 | $6M | TRIM |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | −160,759 | $6M | TRIM |
| Banco BTG Pactual S.A. | −106,060 | $4M | CLOSE |
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 | 82 | 10,230,107 | — | $354M |
| 2025-Q4 | 72 | 9,865,955 | — | $307M |
| 2025-Q3 | 56 | 10,613,117 | — | $225M |
| 2025-Q2 | 66 | 7,622,182 | — | $197M |
| 2025-Q1 | 60 | 6,388,483 | — | $169M |
| 2024-Q4 | 65 | 6,487,013 | — | $190M |
| 2024-Q3 | 48 | 5,663,602 | — | $104M |
| 2024-Q2 | 47 | 5,747,936 | — | $109M |
| 2024-Q1 | 42 | 5,348,457 | — | $80M |
| 2023-Q4 | 41 | 5,468,117 | — | $83M |
| 2023-Q3 | 34 | 4,246,015 | — | $43M |
| 2023-Q2 | 37 | 4,442,494 | — | $72M |
| 2023-Q1 | 31 | 3,911,415 | — | $40M |
| 2022-Q4 | 27 | 3,671,323 | — | $43M |
| 2022-Q3 | 29 | 3,419,189 | — | $25M |
| 2022-Q2 | 30 | 4,460,121 | — | $23M |
| 2022-Q1 | 34 | 4,380,257 | — | $31M |
| 2021-Q4 | 35 | 4,291,999 | — | $19M |
| 2021-Q3 | 38 | 5,498,534 | — | $27M |
| 2021-Q2 | 37 | 5,733,011 | — | $26M |
| 2021-Q1 | 41 | 6,423,225 | — | $31M |
| 2020-Q4 | 43 | 7,935,615 | — | $41M |
| 2020-Q3 | 39 | 6,912,360 | — | $29M |
| 2020-Q2 | 40 | 8,504,529 | — | $48M |
| 2020-Q1 | 46 | 9,170,687 | — | $42M |
| 2019-Q4 | 72 | 10,233,387 | — | $73M |
| 2019-Q3 | 103 | 15,884,704 | — | $133M |
| 2019-Q2 | 100 | 16,456,088 | — | $237M |
| 2019-Q1 | 66 | 14,251,208 | — | $188M |
| 2018-Q4 | 50 | 13,661,287 | — | $205M |
| 2018-Q3 | 49 | 13,437,422 | — | $195M |
| 2018-Q2 | 50 | 14,941,120 | — | $182M |
| 2018-Q1 | 55 | 15,161,509 | — | $308M |
| 2017-Q4 | 64 | 16,255,464 | — | $362M |
| 2017-Q3 | 51 | 16,013,276 | — | $325M |
| 2017-Q2 | 44 | 16,083,105 | — | $267M |
| 2017-Q1 | 40 | 16,793,998 | — | $242M |
| 2016-Q4 | 35 | 15,877,706 | — | $144M |
| 2016-Q3 | 26 | 13,997,604 | — | $96M |
| 2016-Q2 | 27 | 14,142,701 | — | $95M |
| 2016-Q1 | 28 | 13,602,996 | — | $79M |
| 2015-Q4 | 24 | 13,055,684 | — | $80M |
| 2015-Q3 | 33 | 12,005,553 | — | $47M |
| 2015-Q2 | 33 | 11,840,972 | — | $54M |
| 2015-Q1 | 34 | 10,576,239 | — | $56M |
| 2014-Q4 | 34 | 5,507,893 | — | $19M |
| 2014-Q3 | 29 | 4,790,759 | — | $16M |
| 2014-Q2 | 21 | 3,094,623 | — | $9M |
| 2014-Q1 | 18 | 2,252,361 | — | $5M |
| 2013-Q4 | 17 | 3,379,615 | — | $7M |
| 2013-Q3 | 18 | 3,632,263 | — | $8M |
| 2013-Q2 | 15 | 3,504,932 | — | $6M |
