Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in TGS held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | SPX Gestao de Recursos Ltda | 1.8M | $54.0M | +77.1% | 1.206% | 3.01% |
| 2 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 1.1M | $32.8M | -3.0% | 0.733% | 0.04% |
| 3 | North of South Capital LLP | 863K | $25.7M | +34.6% | 0.573% | 1.89% |
| 4 | Fundamenta Capital S.A. | 552K | $16.4M | -3.2% | 0.366% | 9.51% |
| 5 | CITADEL ADVISORS LLC | 473K | $14.1M | +189.4% | 0.314% | 0.00% |
| 6 | MACKENZIE FINANCIAL CORP | 471K | $14.0M | +89.8% | 0.313% | 0.01% |
| 7 | MORGAN STANLEY | 456K | $13.6M | -22.8% | 0.303% | 0.00% |
| 8 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 293K | $8.7M | +56.8% | 0.195% | 0.00% |
| 9 | Vennlight Capital Management, LP | 228K | $6.8M | -16.9% | 0.151% | 4.54% |
| 10 | BNP PARIBAS FINANCIAL MARKETS | 228K | $6.8M | +60.7% | 0.151% | 0.00% |
| 11 | MARSHALL WACE, LLP | 215K | $6.4M | +2691.4% | 0.143% | 0.01% |
| 12 | VR Advisory Services Ltd | 195K | $5.8M | 0.0% | 0.130% | 0.51% |
| 13 | Itau Unibanco Holding S.A. | 179K | $5.3M | +87.6% | 0.119% | 0.10% |
| 14 | WEXFORD CAPITAL LP | 172K | $5.1M | 0.0% | 0.114% | 0.65% |
| 15 | CI INVESTMENTS INC. | 156K | $4.6M | +1.3% | 0.104% | 0.01% |
| 16 | CITIGROUP INC | 145K | $4.3M | -23.3% | 0.096% | 0.00% |
| 17 | PING CAPITAL MANAGEMENT, INC. | 144K | $4.3M | +37.7% | 0.096% | 1.07% |
| 18 | BALYASNY ASSET MANAGEMENT L.P. | 140K | $4.2M | β | 0.093% | 0.01% |
| 19 | Arlington Capital Management INC | 133K | $4.0M | β | 0.089% | 2.46% |
| 20 | ABS Investment Management LLC | 125K | $3.7M | β | 0.083% | 2.33% |
| 21 | GOLDMAN SACHS GROUP INC | 111K | $3.3M | +10.7% | 0.074% | 0.00% |
| 22 | Meixler Investment Management, Ltd. | 88K | $2.6M | +43.1% | 0.058% | 1.44% |
| 23 | XTX Topco Ltd | 74K | $2.2M | +827.8% | 0.049% | 0.03% |
| 24 | Jump Financial, LLC | 72K | $2.1M | β | 0.048% | 0.02% |
| 25 | Uniplan Investment Counsel, Inc. | 59K | $1.8M | -1.5% | 0.039% | 0.08% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in TGS β a direct measure of their conviction.
Filings activity in TGS during Q2 2026, grouped by how each filer changed its position.
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 86 | +4.9% | 6.39% | 0.53 pp | $277M | 21% |
| Q1 2026 | 82 | +15% | 6.92% | +0.16 pp | $352M | +17% |
| Q4 2025 | 71 | +34% | 6.76% | 0.35 pp | $302M | +35% |
| Q3 2025 | 53 | 18% | 7.11% | +1.99 pp | $224M | +14% |
| Q2 2025 | 65 | +8.3% | 5.12% | +0.91 pp | $196M | +23% |
| Q1 2025 | 60 | 7.7% | 4.21% | 0.01 pp | $159M | +6.7% |
| Q4 2024 | 65 | +38% | 4.22% | +0.61 pp | $149M | +99% |
| Q3 2024 | 47 | β | 3.61% | β | $75M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Latest Form 4 transactions by company officers and directors. Insider buys are widely viewed as a key fundamental indicator because executives are risking personal capital.
| Date | Insider | Action | Shares | Price | Value |
|---|---|---|---|---|---|
| Jun 9, 2026 | Fallo Luis Alberto | Buy | 5K | $29.26 | $137K |
Quick answers to the most common questions about buying TGS stock.
Based on Q2 2026 13F filings, institutional ownership of Transportadora de Gas del Sur S.A. stands at 6.4%, held across 86 reporting institutions.
SPX Gestao de Recursos Ltda is the largest reported institutional holder of TGS, with approximately 1,815,590 shares worth $0.05B as of Q2 2026.
Yes β 2 widely-followed marquee investors appear among the top 25 institutional holders of TGS, including CITADEL ADVISORS LLC, SUSQUEHANNA INTERNATIONAL GROUP, LLP.
Our composite Smart Money Score for TGS is 52 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
19 institutions opened new positions in TGS during Q2 2026, while 15 fully exited. 23 added to existing positions and 43 trimmed.
TGS institutional ownership fell by 0.53 percentage points quarter-over-quarter, with a net change of +4 holders.
The top 10 institutions account for 69.6% of all reported 13F value in TGS, and the top 25 account for 91.1%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Transportadora de Gas del Sur S.A. (TGS) Institutional Ownership