Whale Analyzer
Top public holders · 13F and disclosure aggregation

Who owns ACTG? 13F holders and whale ownership

ACTG is tracked across public portfolios in Whale Analyzer. This page answers who owns ACTG, which top funds are buying ACTG, aggregate disclosed value, and recent position changes based on public data. Jeff Smith is the largest reported holder at $294M; the top five funds control 100.0% of reported ownership; the stock trades above the aggregate whale cost basis of $3.73. Top tracked holders include Jeff Smith.

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NMS · latest quote
$4.69
-$0.17 (-3.5%)
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1Tracked holders
$294.0MAggregate reported value
2026-05-21Page updated
1 heldRecent changes

Top holders

InvestorReported valueSharesChange
Jeff Smith 13F portfolio
Starboard Value LP holdings
$294.0M61.1MHeld

Ownership concentration

Reported ownership of ACTG is highly concentrated across tracked institutions.

Whale activity this quarter

Across 1 tracked institutions, 1 held. Net positioning is stable.

Whale cost basis vs current price

The aggregate tracked cost basis is $3.73 versus a current price of $4.69, so ACTG trades above its cost basis (+25.8%). Average unrealized P&L across tracked holders: 23%.

Sector positioning — Other

ACTG sits within the Other sector alongside 670 other tracked names. Compare whale ownership across peers:

How to use this page

Values are reported public positions from tracked 13F filers and disclosures — not real-time ownership totals. Open the live ACTG dashboard for price charts and cross-investor scans, or read the SEC 13F guide.

This page is generated from public filings and public disclosures. It is for research and education only and is not investment advice.

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Frequently asked questions

Who owns ACTG stock?

Whale Analyzer tracks 1 public institutional holders of ACTG with a combined reported value of $294.0M. See the holder table above for the largest tracked positions.

Which top funds are buying ACTG?

Tracked institutions were stable last quarter — 1 held. Check the "Change" column: "New" = fresh position, "Increased" = added, "Reduced" = trimmed.

How concentrated is ACTG ownership?

The top five tracked holders report 100.0% of aggregate ownership.

Is ACTG above or below the whale cost basis?

The aggregate tracked cost basis is $3.73 versus a current price of $4.69 (+25.8%).

What does 13F ownership mean for ACTG?

Use the interactive ACTG dashboard on Whale Analyzer for real-time holder analysis, or read our 13F Alpha Signals Guide.