Alex Roepers - Atlantic Investment Management Investment Strategy & Portfolio Analysis

How Atlantic Investment Management allocates capital, manages risk, and constructs its portfolio — based on SEC 13F filings.

As of Mar 31, 2026, Alex Roepers's Atlantic Investment Management portfolio reflects a highly concentrated, high-conviction, thematic, opportunistic approach across 12 reported 13F positions. Portfolio returns are primarily driven by a small set of high-conviction positions such as Kirby, American Axle & Manufacturing H, and Aptiv, with the top five holdings accounting for approximately 70% of total exposure and Kirby alone contributing ~20%. While the portfolio includes 12 positions, economic outcomes are highly concentrated in a narrow set of industrials and consumer cyclical companies names. Exposure to high-growth and technology-oriented segments remains limited relative to peers, with performance weighted across unknown, industrials, and consumer discretionary. The portfolio maintains moderate turnover, consistent with periodic rebalancing rather than a fully static book. Distinctive traits include Moderate Turnover, Moderately Concentrated, Economically Concentrated.

Investment Style

Value, growth, quality, and behavioral classification from latest 13F holdings.

Highly Concentrated High Conviction Thematic Opportunistic

Primary type: Thematic Opportunist

Traits: Moderate Turnover, Moderately Concentrated, Economically Concentrated

Turnover profile

Active

Holding horizon

Moderate

Portfolio Construction

Concentration and position sizing in the latest filing.

Portfolio construction is highly concentrated: top three names represent 46.2% of assets, top five 69.6%, and the largest single position is 19.9%.

Top 3 weight

46.2%

Top 5 weight

69.6%

Top 10 weight

97.0%

Largest position

19.9%

Top holdings: Kirby Corporation, American Axle & Manufacturing H, Aptiv, Weatherford, Oshkosh Corporation (Holding Co — view full holdings

Sector Preferences

Where capital is allocated by sector.

Capital is tilted toward Unknown and Industrials, with 4 sectors represented in the latest filing.

Leading sectors: Unknown, Industrials, Consumer Cyclical

View full sector allocation

Risk Framework

Concentration, diversification, and turnover tolerance.

This investor accepts high single-name risk (largest position 19.9%, top ten 97.0%) and low economic diversification (HHI 0.04). Turnover tolerance maps to a active profile.

Largest position

19.9%

Top 10 weight

97.0%

Max sector

38.6%

Diversification

Low

Strategy Evolution

How the strategy changed between the two most recent filing periods.

Dec 31, 2025 → Mar 31, 2026

  • Position count increased from 10 to 12 (+2 names).
  • Top-five concentration rose from 67.5% to 69.6%.
  • Largest holding changed from Axalta to Kirby Corporation.
  • Quarter-over-quarter portfolio weight turnover: 37.9%.

For trade-level changes, see the Activity page. View activity.

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Alex Roepers - Atlantic Investment Management Investment Strategy | InsiderSet