TGSGY

TGS Nopec Geophysical-SP ADR Cross-source read$15.07 0.40%
UnclassifiedCUSIP 87243K208· EOD Sep 11, 2026

Among active 13F managers last quarter, 1 opened and 1 added, while none reduced or exited; the largest holder to move was GAMMA Investing LLC (+49%). No recent Form 4 insider filings for TGSGY.

Tracked 13F holders
3
2 in Q2 2026 filings
13F value (tracked)
$81K
Smart-money readBullish
Net sellingNet buying
Funds · active managers, latest 13F
2 adding · 0 trimming
Insiders · Form 4 open-market, 180d
0 buying · 0 selling
US House · STOCK Act, 180d
0 buying · 0 selling

Funds lean in and no leg opposes.

Price & smart-money activity

$15.07 0.40%5Y +47.7%
$6.14$9.86$13.58$17.30$21.02202120232024202520262
Hover for who · click for detailEnd-of-day closing prices52w $7.17 – $17.14

Who owns TGSGY?

3 tracked 13F filers · ranked by shares held

3 tracked 13F filers disclose a position in TGSGY as of the latest SEC 13F filings, a combined $81K in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

#FundSharesPosition valueLast moveAs ofHistory
1Rhumbline Advisers3K
$39K
−18%
Reduced · −626 sh
Q1 2026
2GAMMA Investing LLC3K
$37K
+49%
Added · +935 sh
Q2 2026
3Ancora Advisors LLC439
$6K
New
+439 sh
Q2 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is TGSGY being bought or sold by institutions?

Last quarter, 1 fund opened a new position in TGSGY and 1 added to an existing one, while none reduced or exited. Based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened
1
fund took a first position
Added
1
added to an existing position
Biggest moves · ranked by size of the change, positions above a floor

Funds that own TGSGY also own

CompanyCo-held byTheir position there
Apple IncAAPL2 funds$268.4M
Broadcom IncAVGO2 funds$198.8M
LKQ CorpLKQ2 funds$183.1M
Nvidia CorpNVDA2 funds$171.5M
Vanguard S&P 500 ETFVOO2 funds$171.0M
Microsoft CorpMSFT2 funds$165.8M
Americold Realty Trust IncCOLD2 funds$164.0M
Ashland IncASH2 funds$128.2M
JPMorgan Chase & CoJPM2 funds$123.0M
Alphabet Inc-CL CGOOG2 funds$102.6M
Amazon.com IncAMZN2 funds$102.3M
Alphabet Inc-CL AGOOGL2 funds$93.8M

Ranked by how many of TGSGY's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in TGSGY.

Insider activity (Form 4)

No open-market insider transactions on file yet. Grants, gifts, and exercises live on the full insider page.

Do institutions, insiders and Congress agree?

Mixed signals

Where institutional funds (13F), corporate insiders (Form 4) and US House members (STOCK Act) are buying or selling the same name in the same window. Green is buying, red is selling.

SEC EDGAR 13F + Form 4 + US House STOCK Act{ }get_ticker_confluence · API & MCP

Signals by source

Insiders and Congress: last 180 days. Funds: latest 13F, top 100 holders incl. passive

SourceBuyingSellingNet
13F funds
Top 100 holders by value, passive included; the hero counts active managers only
11
Insiders
Form 4 open-market
00$0
US House
STOCK Act trades
00$0

Capital Rotation reports where institutional capital disclosed rotating, as of the latest public SEC 13F filings. It is data, not investment advice, a recommendation, or a prediction. Filings lag about 45 days and cover long US equity positions only. Past disclosed flows do not indicate future prices. Do your own research; consult a licensed advisor.

Institutional ownership over time

2 tracked filers in Q2 2026 filingsstill filing
023Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
tracked filers holding their reported valueQ2 2026 filings so far: $42K
Each bar counts tracked filers with a position in that quarter's filings, so the newest bar excludes filers still on an earlier quarter. Arkolith's tracked universe has grown over this window; part of any long-run rise is coverage, not new buyers.

Recent filings

0 most recent

No filings captured for this ticker in the live stream yet.

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Ask your agent what changed in TGSGY

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/TGSGY/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for TGSGY.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for TGSGY. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.