Microsoft Corp.
594918104
New position
SEC source XMLShare change
+5,654,078
Value change
+$2.1B
Weight change
+15.26%
Back to 13F signalsSEC source XML
PS
Q1 2026
Pershing Square
Pershing Square is Bill Ackman's concentrated investment firm, known for activist campaigns and high-conviction public-company stakes.
Pershing Square Capital Management, L.P., CIK 0001336528. Review four-quarter trends, portfolio structure, quarterly operations, and the complete table of original SEC CUSIP holdings.
Report date: 03/31/2026Filing date: 05/15/20260001172661-26-002336
No reliable official logo asset URL was confirmed from the official Pershing Square website.
13F portfolio value change
$13.7B
Q1 2026 disclosed value; -$1.8B / -11.7% vs Q4 2025.
Company-level holdings
10
Multiple CUSIP rows for the same company are combined.
Top 10 weight
100.00%
Concentrated
New / increased
2
New positions 15.26%
Exited / reduced
6
Turnover 20.00%
Latest portfolio moves
New positions, increases, reductions, and exits are shown before charts and raw holdings, with SEC source links on every move.
Increased / new this quarter
Company-level positions whose share count increased or appeared for the first time.
AMAZON COM INC
023135106
Increased
SEC source XMLShare change
+1,844,157
Value change
+$167.4M
Weight change
+3.11%
Reduced / exited this quarter
Company-level positions whose share count declined or disappeared completely.
Alphabet Inc.
02079K107, 02079K305
Reduced
SEC source XMLShare change
-6,498,066
Value change
-$2.0B
Weight change
-13.10%
HILTON WORLDWIDE HLDGS INC
43300A203
Exited
SEC source XMLShare change
-3,028,664
Value change
-$870.0M
Weight change
-5.60%
BROOKFIELD CORP
11271J107
Reduced
SEC source XMLShare change
-1,705,881
Value change
-$401.8M
Weight change
-0.53%
UBER TECHNOLOGIES INC
90353T100
Reduced
SEC source XMLShare change
-248,963
Value change
-$313.3M
Weight change
-0.18%
META PLATFORMS INC
30303M102
Reduced
SEC source XMLShare change
-12,708
Value change
-$242.4M
Weight change
-0.27%
RESTAURANT BRANDS INTL INC
76131D103
Reduced
SEC source XMLShare change
-221,290
Value change
+$113.3M
Weight change
+2.15%
SEC source transparency
Signals are derived from SEC EDGAR 13F information tables. Search aliases, tickers, themes, and company mappings help discovery but do not replace the original filing.
Data source
SEC EDGAR
Source filings
16
Latest reporting quarter
2026Q1
Largest increase
Rule-based indicators calculated from company-level changes this quarter.
Microsoft Corp.
594918104
New position
SEC source XMLShare change
+5,654,078
Value change
+$2.1B
Weight change
+15.26%
Largest reduction
Rule-based indicators calculated from company-level changes this quarter.
Alphabet Inc.
02079K107, 02079K305
Reduced
SEC source XMLShare change
-6,498,066
Value change
-$2.0B
Weight change
-13.10%
Manager profile
Style
Activist value, event-driven catalysts, concentrated positions, and willingness to push for governance or strategic change.
History
Ackman founded Pershing Square in 2004 and became known for public campaigns, both successful and controversial.
Scale
The 13F portfolio is usually concentrated in a small set of large public companies.
Lead investor
Ackman is outspoken, analytical, and known for high-conviction public theses.
Record and context
The record includes major wins and large drawdowns, so the position context matters more than a headline action alone.
13F scope
13F reports show disclosed U.S.-listed long equity positions. They exclude most shorts, private holdings, cash, derivatives, and non-U.S. positions.
Trends and portfolio structure
Total value over four quarters
Holdings count trend
Quarterly action counts
Top holdings weight
Theme / industry allocation
Technology60.19%
Unclassified27.61%
Consumer12.20%
Four-quarter summary
| Quarter | Filing date | Accession number | Raw rows | Companies | Total holding value | Top10 |
|---|---|---|---|---|---|---|
| Q1 2026 | 05/15/2026 | 0001172661-26-002336 | 11 | 10 | $13,714,299,861 | 100.00% |
| Q4 2025 | 02/17/2026 | 0001172661-26-001091 | 11 | 10 | $15,526,737,802 | 100.00% |
| Q3 2025 | 11/14/2025 | 0001172661-25-005039 | 11 | 10 | $14,643,293,767 | 100.00% |
| Q2 2025 | 08/14/2025 | 0001172661-25-003509 | 11 | 10 | $13,729,120,533 | 100.00% |
Quarterly operations table
| Company | CUSIP | Change | Current shares | Share change | Share change % | Current value | Value change | Weight change | Theme |
|---|---|---|---|---|---|---|---|---|---|
| Microsoft Corp. MSFT | 594918104 | New position | 5,654,078 | +5,654,078 | n/a | $2,092,970,053 | +$2,092,970,053 | +15.26% | Technology |
| Alphabet Inc. GOOG / GOOGL | 02079K107, 02079K305 | Reduced | 344,102 | -6,498,066 | -94.97% | $98,731,763 | -$2,047,797,918 | -13.10% | Technology |
| HILTON WORLDWIDE HLDGS INC 43300A203 | 43300A203 | Exited | 0 | -3,028,664 | -100.00% | $0 | -$869,983,734 | -5.60% | Unclassified |
| BROOKFIELD CORP 11271J107 | 11271J107 | Reduced | 59,697,208 | -1,705,881 | -2.78% | $2,415,946,008 | -$401,841,746 | -0.53% | Unclassified |
| UBER TECHNOLOGIES INC 90353T100 | 90353T100 | Reduced | 29,958,771 | -248,963 | -0.82% | $2,154,934,398 | -$313,339,547 | -0.18% | Technology |
| HOWARD HUGHES HOLDINGS INC 44267T102 | 44267T102 | Unchanged | 18,852,064 | 0 | +0.00% | $1,192,581,569 | -$311,247,576 | -0.99% | Unclassified |
| META PLATFORMS INC 30303M102 | 30303M102 | Reduced | 2,660,861 | -12,708 | -0.48% | $1,522,358,404 | -$242,437,757 | -0.27% | Technology |
| AMAZON COM INC 023135106 | 023135106 | Increased | 11,451,981 | +1,844,157 | +19.19% | $2,385,104,083 | +$167,426,147 | +3.11% | Technology |
| RESTAURANT BRANDS INTL INC 76131D103 | 76131D103 | Reduced | 22,645,483 | -221,290 | -0.97% | $1,673,501,194 | +$113,301,272 | +2.15% | Consumer |
| SEAPORT ENTMT GROUP INC 812215200 | 812215200 | Unchanged | 5,023,780 | 0 | +0.00% | $107,910,794 | +$8,590,663 | +0.15% | Unclassified |
| HERTZ GLOBAL HLDGS INC 42806J700 | 42806J700 | Unchanged | 15,241,127 | 0 | +0.00% | $70,261,595 | -$8,077,798 | +0.01% | Unclassified |
Showing 11 of 11 changes for this quarter. Portfolio weight is the position’s share of the manager’s total 13F market value for that quarter.
Complete raw holdings table
| Rank | Company | CUSIP | Normalized company | Holding market value | Shares | Weight | Change | Theme | Source |
|---|---|---|---|---|---|---|---|---|---|
| 1 | BROOKFIELD CORP CL A LTD VT SH | 11271J107 | BROOKFIELD CORP 11271J107 | $2,415,946,008 | 59,697,208 | 17.62% | Reduced -2.78% | Unclassified | 05/15/2026 0001172661-26-002336 |
| 2 | AMAZON COM INC COM | 023135106 | AMAZON COM INC 023135106 | $2,385,104,083 | 11,451,981 | 17.39% | Increased +19.19% | Technology | 05/15/2026 0001172661-26-002336 |
| 3 | UBER TECHNOLOGIES INC COM | 90353T100 | UBER TECHNOLOGIES INC 90353T100 | $2,154,934,398 | 29,958,771 | 15.71% | Reduced -0.82% | Technology | 05/15/2026 0001172661-26-002336 |
| 4 | MICROSOFT CORP COM | 594918104 | Microsoft Corp. microsoft | $2,092,970,053 | 5,654,078 | 15.26% | New position n/a | Technology | 05/15/2026 0001172661-26-002336 |
| 5 | RESTAURANT BRANDS INTL INC COM | 76131D103 | RESTAURANT BRANDS INTL INC 76131D103 | $1,673,501,194 | 22,645,483 | 12.20% | Reduced -0.97% | Consumer | 05/15/2026 0001172661-26-002336 |
| 6 | META PLATFORMS INC CL A | 30303M102 | META PLATFORMS INC 30303M102 | $1,522,358,404 | 2,660,861 | 11.10% | Reduced -0.48% | Technology | 05/15/2026 0001172661-26-002336 |
| 7 | HOWARD HUGHES HOLDINGS INC COM | 44267T102 | HOWARD HUGHES HOLDINGS INC 44267T102 | $1,192,581,569 | 18,852,064 | 8.70% | Unchanged +0.00% | Unclassified | 05/15/2026 0001172661-26-002336 |
| 8 | SEAPORT ENTMT GROUP INC COMMON STOCK | 812215200 | SEAPORT ENTMT GROUP INC 812215200 | $107,910,794 | 5,023,780 | 0.79% | Unchanged +0.00% | Unclassified | 05/15/2026 0001172661-26-002336 |
| 9 | ALPHABET INC CAP STK CL C | 02079K107 | Alphabet Inc. alphabet | $89,421,720 | 311,726 | 0.65% | Reduced -94.94% | Technology | 05/15/2026 0001172661-26-002336 |
| 10 | HERTZ GLOBAL HLDGS INC COM NEW | 42806J700 | HERTZ GLOBAL HLDGS INC 42806J700 | $70,261,595 | 15,241,127 | 0.51% | Unchanged +0.00% | Unclassified | 05/15/2026 0001172661-26-002336 |
| 11 | ALPHABET INC CAP STK CL A | 02079K305 | Alphabet Inc. alphabet | $9,310,043 | 32,376 | 0.07% | Reduced -95.23% | Technology | 05/15/2026 0001172661-26-002336 |
SEC filing source
Current filing: 0001172661-26-002336, filed 05/15/2026. Open the SEC source above to inspect the original information table.