Exited position

Bill Ackman’s Berkshire Hathaway Inc Del (BRK/B) position

Reported position history, portfolio importance and verified filing changes from public SEC disclosures.

Pershing Square Capital ManagementVerified through Q2 2026
Relationship snapshot

At a glance

The full verified relationship, including prior ownership episodes and exits where supported.

First reportedQ2 2019Earliest verified positive filing snapshot
Latest statusExited positionBased on the latest supported relationship state
Peak shares5.45MHighest verified quarter-end share count
Quarters reported4Verified quarters with shares above zero
What happened?

Pershing Square Capital Management first reported Berkshire Hathaway Inc Del in Q2 2019. The reported position was increased across later filings. The latest verified relationship event shows that Pershing Square Capital Management sold the entire position in Q2 2020, and the stock is no longer reported in the latest verified portfolio.

Verified SEC history

Position over time

See the same verified relationship through reported shares, portfolio weight or reported value.

Metric

Gaps indicate periods that cannot be safely connected or where a verified corporate action changes the raw share scale. Stock price, when available, is market context and not a transaction price.

Key filing events

What changed

Latest filing plus the most meaningful reported changes. Unchanged quarters are collapsed by default.

Q2 2020
Sold the entire position−5.45M shares · No shares reported at quarter-end
Q1 2020
Bought 35.8% more+1.44M shares · 5.45M shares reported after the change
Filing context

Quarter-end price $182.83 · Estimated holding basis $204.70

Q3 2019
Bought 14.3% more+502.60K shares · 4.02M shares reported after the change
Filing context

Quarter-end price $208.02 · Estimated holding basis $212.53

Q2 2019
New position+3.51M shares · 3.51M shares reported
Filing context

Quarter-end price $213.17 · Estimated holding basis $213.17

1 unchanged quarter is collapsed by default.

Portfolio importance

How important was Berkshire Hathaway Inc Del in Pershing Square Capital Management’s reported portfolio?

Relative importance is measured only within the verified primary non-option reported portfolio for each quarter.

Last reported portfolio weight15.2%Q1 2020
Last reported rank#2of 10 reported positions
Peak portfolio weight15.2%Q1 2020
Best historical rank#2Q1 2020
At peak importanceQ1 2020
BRK/B
15.2%
Largest holding
16.0%
Cross-investor discovery

Who else owns Berkshire Hathaway Inc Del?

Also reported by 8 other tracked investors in their latest verified filings.

Guy SpierAquamarine Capital
BRK/B33.9% of reported portfolio
Bill GatesGates Foundation Trust
BRK/B21.4% of reported portfolio
Christopher BloomstranSemper Augustus Investments Group LLC
BRK/B15.5% of reported portfolio
Explore Berkshire Hathaway Inc Del across all tracked investors →
SEC evidence & methodology

SEC filing evidence

Market context and filing-derived values are kept separate from actual transaction prices, which 13F filings do not disclose.

Latest verified stock price$509.772026-09-18

Market context only; not an investor transaction price.

Latest verified investor filingQ2 2026 · filed 2026-08-14
Open SEC filing ↗

This tracker follows Pershing Square Capital Management’s Form 13F disclosures. It is not Bill Ackman’s personal brokerage account, and 13F filings do not reveal exact trade dates or execution prices.