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MacKay Shields portfolio

Concentrated managerInvestment firm

Portfolio as of Sep 30, 2026 (Q3 2026) · filed with the SEC on Oct 13, 2026 · data updated on Nov 5, 2026 · Q3 2026 13F (filing) ↗ · all its 13F filings ↗

A 13F shows the portfolio at quarter-end and is filed up to 45 days later: these are not real-time positions and they may have changed.

MacKay Shields reported a $745M portfolio of 27 companies (29 positions, counting each share class separately) to the SEC as of the end of Q3 2026. Its largest positions are Alphabet, Hewlett Packard Enterprise C, Nextera Energy. During the quarter it exited Apollo Global Management and Warner Bros. Discovery.

Stock portfolio
$745M
Companies
27
29 positions (by CUSIP)Top 10: 73%
Turnover
10%
Copying its 13F, 5 years
—
No 5 straight years measured as a concentrated manager

Sections with a free account

What changed this quarter

10 positions with a change (5 added to, 2 trimmed, 3 sold). 7 are listed here: those of 0.5 points of the portfolio or more (up to 12).

The figure on the right: for positions added to or trimmed, the change in the number of shares (%); for new and sold ones, the points of the portfolio moved (pp). Below, the portfolio weight before → after. Traded weight: what it bought or sold, excluding price effects.

Top holdings

“Since”: first quarter of the current run, unbroken until today. In the details, prices are the quarter-end prices of the quarters in which it added shares, per the 13F. The manager may have bought at any price within each quarter; the SEC only publishes the value at quarter end.

Portfolio by sector

  • ● No sector 93%
  • ● Energy 7%

How its portfolio changed (8 quarters)

Positions

Q3 2026: 29

590
Q4 2024Q3 2026
Top 10 weight

Q3 2026: 73%

73%48%
Q4 2024Q3 2026
Traded turnover

Q3 2026: 6.4%

12.7%0
Q4 2024Q3 2026

Traded turnover: the weight it bought plus the weight it sold in the quarter, divided by two, excluding price moves. The plain “turnover” in the header does include that effect. With a free account: the full history and sectors over time.

Stakes above 5% (13D/13G)

Companies where this filer reported holding 5% or more of the shares. It is the figure from its latest filing on each one; history since December 2024.

How we classify it

Investment firm, per its Form ADV of Aug 6, 2026 (high confidence).

The data, as reported: MACKAY SHIELDS LLC (CRD 107717): 7.B private funds: 14 hedge, 2 other (gross assets $12.2 bn); 5.D assets by client type: registered funds 42%, insurers 18%, pooled vehicles 15%, pension plans 9% (of $159.5 bn) · 13F: 61% of the portfolio was already held when the stock started trading

The type comes from a rule applied to that data. If it looks wrong, tell us.

Similar managers by type and size

Same type of filer and a 13F portfolio value between a third and three times this one. It is not a comparison of what they hold.

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