ALBERT D MASON INC
Q3 2026 Form 13-F
BOSTON, MASSACHUSETTS
CIK 0001169318
· CRD 107412
· SEC-registered investment adviser
$165.8M Reported Value Total
MASON CAPITAL PARTNERS reports 300 total accounts under management (AUM). There are 300 discretionary accounts valued at $210,604,947, and 0 non-discretionary accounts.
Source: Form ADV filed * Note that certain holdings are exempt from Form 13-F reporting, so the AUM totals may be greater than the Form 13-F total.
Private funds (Form ADV)
3 funds
· $108.4M gross asset value
Other: $108.4M
Source: Form ADV filed 2026-03-31
Reported value
$165.8M
Quarter over quarter
-5.0%
Holdings
134
Top-10 concentration
23.8%
Key People
Form ADV owners & control persons
Albert David Mason
PRESIDENT
Gregg Thomas Picillo
SENIOR VICE PRESIDENT & CHIEF COMPLIANCE OFFICER
Filing Navigation
Coverage begins with the second quarter of 2013. Earlier quarters are not shown while their accuracy is being verified.
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Q3 2026 13F record
Q3 2026 13F filing summary
| Period of report | September 30, 2026 |
|---|---|
| Filed | October 27, 2026 |
| Form | 13F-HR |
| Reported value | $165.8M |
| Positions | 134 |
| Change in reported value | -5.8% |
| New positions | 8 |
| Exited positions | 7 |
| Position turnover | 10.6% |
| Top-10 concentration | 23.8% |
13F filings by quarter
| Quarter | Positions | Value |
|---|---|---|
|
Q3 2026 13F
Filed Oct 27, 2026
|
134 | $165.8M |
|
Q2 2026 13F
Filed Jul 22, 2026
|
137 | $176.0M |
|
Q1 2026 13F
Filed Apr 15, 2026
|
128 | $154.5M |
|
Q4 2025 13F
Filed Jan 13, 2026
|
138 | $151.9M |
|
Q3 2025 13F
Filed Oct 15, 2025
|
142 | $153.6M |
|
Q2 2025 13F
Filed Jul 29, 2025
|
142 | $138.2M |
|
Q1 2025 13F
Filed Apr 16, 2025
|
143 | $147.1M |
|
Q4 2024 13F
Filed Jan 15, 2025
|
144 | $149.6M |
|
Q3 2024 13F
Filed Oct 22, 2024
|
145 | $156.1M |
|
Q2 2024 13F
Filed Jul 16, 2024
|
145 | $148.0M |
|
Q1 2024 13F
Filed Apr 24, 2024
|
154 | $161.7M |
|
Q4 2023 13F
Filed Jan 3, 2024
|
155 | $151.0M |
|
Q3 2023 13F
Filed Oct 10, 2023
|
153 | $138.2M |
|
Q2 2023 13F
Filed Jul 25, 2023
|
154 | $145.9M |
|
Q1 2023 13F
Filed Apr 11, 2023
|
152 | $144.2M |
|
Q4 2022 13F
Filed Jan 11, 2023
|
151 | $140.1M |
|
Q3 2022 13F
Filed Oct 12, 2022
|
147 | $124.8M |
|
Q2 2022 13F
Filed Jul 12, 2022
|
148 | $134.5M |
|
Q1 2022 13F
Filed Apr 20, 2022
|
154 | $155.5M |
|
Q4 2021 13F
Filed Jan 25, 2022
|
150 | $167.7M |
34 earlier quarters on file — choose one from the quarter menu above.
Top 20 holdings · Q3 2026
| # | Holding | Reported value | % of portfolio |
|---|---|---|---|
| 1 | GOOG Alphabet Inc. Class C | $7.4M | 4.47% |
| 2 | LRCX Lam Research Corp. | $4.6M | 2.78% |
| 3 | KLAC KLA Corp. | $4.5M | 2.73% |
| 4 | NVS Novartis AG ADR | $3.7M | 2.21% |
| 5 | TSM Taiwan Semiconductor Manufactu | $3.6M | 2.14% |
| 6 | SNA Snap-on Inc. | $3.3M | 1.96% |
| 7 | LIN Linde PLC | $3.2M | 1.94% |
| 8 | 483410007 Schneider Electric SA | $3.1M | 1.89% |
| 9 | TMTNF Toromont Industries Ltd. | $3.1M | 1.86% |
| 10 | ITT ITT Corp. | $3.1M | 1.85% |
| 11 | GWW W.W. Grainger, Inc. | $2.9M | 1.76% |
| 12 | HUBB Hubbell Inc. | $2.8M | 1.69% |
| 13 | PLBC Plumas Bancorp | $2.8M | 1.67% |
| 14 | 25675T107 Dollarama Inc. | $2.7M | 1.62% |
| 15 | ATO Atmos Energy Corp. | $2.6M | 1.56% |
| 16 | PAC Grupo Aeroportuario Del Pacifi | $2.5M | 1.51% |
| 17 | ACI07W296 Gaztransport et Technigaz SAS | $2.3M | 1.41% |
| 18 | ADP Automatic Data Processing, Inc | $2.2M | 1.35% |
| 19 | SKT Tanger Factory Outlet Centers, | $2.2M | 1.34% |
| 20 | KMI Kinder Morgan, Inc. | $2.2M | 1.34% |
Values as reported on the Q3 2026 Form 13F. Every position is in the holdings table below.