Transportadora de Gas del Sur S.A. (TGS) Institutional Ownership

Based on Q1 2026 13F filings, institutional ownership of Transportadora de Gas del Sur S.A. stands at 7.0%, held across 81 reporting institutions.

Helikon Investments Ltd is the largest reported institutional holder of TGS, with approximately 2,347,333 shares worth $0.08B as of Q1 2026.

Yes — 2 widely-followed marquee investors appear among the top 25 institutional holders of TGS, including SUSQUEHANNA INTERNATIONAL GROUP, LLP, CITADEL ADVISORS LLC.

Our composite Smart Money Score for TGS is 70 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.

23 institutions opened new positions in TGS during Q1 2026, while 12 fully exited. 44 added to existing positions and 12 trimmed.

TGS institutional ownership rose by 1.05 percentage points quarter-over-quarter, with a net change of +11 holders.

The top 10 institutions account for 75.5% of all reported 13F value in TGS, and the top 25 account for 94.0%.

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.