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Senator Investment Group portfolio

Concentrated managerInvestment firm

Portfolio as of Jun 30, 2026 (Q2 2026) · filed with the SEC on Aug 12, 2026 · data updated on Nov 5, 2026 · Q2 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.

This 13F omits positions for which the manager requested confidential treatment from the SEC: the portfolio may be incomplete until they are disclosed.

Senator Investment Group reported a $2.3 bn portfolio of 57 positions to the SEC as of the end of Q2 2026. Its largest positions are DPC, UAL, V.

Stock portfolio
$2.3 bn
Positions
57
Top 10: 47%
Turnover
41%
Copying its 13F, 5 years
—
No 5 straight years measured as a concentrated manager

Sections with a free account

What changed this quarter

33 positions with a change (11 added to, 22 trimmed). 12 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

  • ● Information Technology 20%
  • ● Materials 19%
  • ● Industrials 16%
  • ● Consumer Discretionary 15%
  • ● Health Care 13%
  • ● Financials 9%
  • ● Communication Services 3%
  • ● Energy 3%
  • ● Consumer Staples 2%
  • ● No sector 1%

How its portfolio changed (8 quarters)

Positions

Q2 2026: 57

660
Q3 2024Q2 2026
Top 10 weight

Q2 2026: 47%

51%35%
Q3 2024Q2 2026
Traded turnover

Q2 2026: 40.1%

40.1%0
Q3 2024Q2 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.

13F filings with amendments or confidential positions

Declared options (4)

Besides stocks, Senator Investment Group declared 2 puts (they gain if the stock falls) and 2 calls (they gain if it rises) with a notional of $423M. The 13F reports the value of the underlying shares, not the premium paid, so these figures look large and are not added to the portfolio. Nor does it say whether the option is bought or written, or its strike or expiry: it may be a hedge.

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 Mar 26, 2026 (high confidence).

The data, as reported: SENATOR INVESTMENT GROUP LP (CRD 160935): 7.B private funds: 3 hedge, 1 pe (gross assets $4.9 bn); 5.D assets by client type: pooled vehicles 100% (of $4.9 bn)

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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