Follow The Filings

Aquamarine Zurich AG Guy Spier

Zurich, V8 22 processed 13Fs on this site, 2021 Q3 to 2026 Q2

  • $144M
  • 7 holdings
  • 2026 Q2
  • +6.7% QoQ
  • Top 5 87.5%

Portfolio

2026 Q2, filed 7/10/2026, 7 holdings

Top 5 87.5%, top 10 100.0%

AUM over time

2026 Q2 $144M +6.7% QoQ
2021 Q3: $204M 2021 Q3: $204M
Q3 2021
2021 Q4: $218M, +6.9% QoQ 2021 Q4: $218M, +6.9% QoQ
Q4
2022 Q1: $221M, +1.4% QoQ 2022 Q1: $221M, +1.4% QoQ
Q1 2022
2022 Q2: $170M, −23.1% QoQ 2022 Q2: $170M, −23.1% QoQ
Q2
2022 Q3: $164M 2022 Q3: $164M
Q3
2022 Q4: $186M, +13.4% QoQ 2022 Q4: $186M, +13.4% QoQ
Q4
2023 Q1: $193M, +3.8% QoQ 2023 Q1: $193M, +3.8% QoQ
Q1 2023
2023 Q2: $210M, +8.8% QoQ 2023 Q2: $210M, +8.8% QoQ
Q2
2023 Q3: $203M, −3.3% QoQ 2023 Q3: $203M, −3.3% QoQ
Q3
2023 Q4: $229M, +12.8% QoQ 2023 Q4: $229M, +12.8% QoQ
Q4
2024 Q1: $262M, +14.4% QoQ 2024 Q1: $262M, +14.4% QoQ
Q1 2024
2024 Q2: $263M, +0.4% QoQ 2024 Q2: $263M, +0.4% QoQ
Q2
2024 Q3: $286M, +8.7% QoQ 2024 Q3: $286M, +8.7% QoQ
Q3
2024 Q4: $288M, +0.7% QoQ 2024 Q4: $288M, +0.7% QoQ
Q4
2025 Q1: $294M, +2.1% QoQ 2025 Q1: $294M, +2.1% QoQ
Q1 2025
2025 Q2: $310M, +5.4% QoQ 2025 Q2: $310M, +5.4% QoQ
Q2
2025 Q3: $317M, +2.3% QoQ 2025 Q3: $317M, +2.3% QoQ
Q3
2025 Q4: $148M, −53.3% QoQ 2025 Q4: $148M, −53.3% QoQ
Q4
2026 Q1: $135M, −8.8% QoQ 2026 Q1: $135M, −8.8% QoQ
Q1 2026
2026 Q2: $144M, +6.7% QoQ 2026 Q2: $144M, +6.7% QoQ
Q2

Latest book

2026 Q2 2026 Q1, filed 10 Jul, long equity only

BRK.B, Berkshire Hathaway Class B 33.89% Hold 97,600 $500.39 $49M — —
BRK.A, Berkshire Hathaway Class A 15.59% Hold 30 $748,867 $22M — —
AXP, American Express 15.26% Hold 65,000 $338.25 $22M — —
MA, Mastercard 14.26% Hold 40,000 $513.60 $21M — —
MCO, Moody's 8.49% Hold 27,000 $452.93 $12M — —
RACE, Ferrari 7.71% Hold 30,000 $370.47 $11M — —
DJCO, Daily Journal 4.80% Hold 11,500 $601.22 $6.9M — —

Weight bar: held both quarters added sold at this quarter’s reported price

* Reported price is value ÷ shares from the 13F as of period end, not a live market quote. Weight % is each long-equity position ÷ full 13F AUM, so rows may not sum to 100% when the filing includes options or other non-equity (excluded from this table). Share change and $ change are vs 2026 Q1. Click a column header to sort, or New, Hold, Add or Reduce to bring those moves to the top.

Filings history

20 periods, with AUM normalized

Period Holds AUM QoQ Form Filed Filing ID
2026 Q2 7 $144M +6.7% 13F-HR 7/10/2026 000195332426000003
2026 Q1 7 $135M −8.8% 13F-HR 4/17/2026 000195332426000002
2025 Q4 7 $148M −53.3% 13F-HR 1/15/2026 000195332426000001
2025 Q3 14 $317M +2.3% 13F-HR 10/20/2025 000195332425000007
2025 Q2 14 $310M — RESTATEMENT 7/18/2025 000195332425000006
2025 Q2 14 $310M +5.4% 13F-HR 7/16/2025 000195332425000004
2025 Q1 14 $294M — RESTATEMENT 7/18/2025 000195332425000005
2025 Q1 14 $294M +2.1% 13F-HR 4/11/2025 000195332425000003
2024 Q4 14 $288M +0.7% 13F-HR 1/24/2025 000195332425000001
2024 Q3 14 $286M +8.7% 13F-HR 10/16/2024 000195332424000005
2024 Q2 14 $263M +0.4% 13F-HR 7/11/2024 000195332424000004
2024 Q1 12 $262M +14.4% 13F-HR 4/18/2024 000195332424000003
2023 Q4 12 $229M +12.8% 13F-HR 2/1/2024 000195332424000002
2023 Q3 12 $203M −3.3% 13F-HR 10/12/2023 000195332423000004
2023 Q2 12 $210M +8.8% 13F-HR 7/13/2023 000195332423000003
2023 Q1 12 $193M +3.8% 13F-HR 4/18/2023 000195332423000002
2022 Q4 12 $186M +13.4% 13F-HR 1/27/2023 000195332423000001
2022 Q3 12 $164M — 13F-HR 11/8/2022 000195332422000001
2022 Q2 12 $170M −23.1% 13F-HR 8/2/2022 000140459922000005
2022 Q1 13 $221M +1.4% 13F-HR 5/12/2022 000140459922000002
2021 Q4 13 $218M +6.9% 13F-HR 2/7/2022 000140459922000001
2021 Q3 13 $204M — 13F-HR 10/28/2021 000140459921000006

About

Aquamarine Zurich AG

22 processed 13Fs on this site, 2021 Q3 to 2026 Q2

Entity
Aquamarine Zurich AG
Notable person
Guy Spier
Location
Zurich, V8
All SEC filings
View on sec.gov