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Pertento Partners LLP — 13F Holdings & Portfolio

CIK 1894571 · latest 13F-HR filed 2026-11-13

Backtest portfolio

Pertento Partners LLP manages $2.09B in 13F-reported U.S. long-equity assets across 19 reported positions as of its 2026-09-30 13F-HR filing. Its largest disclosed positions are BRK.B (17.93%), USFD (10.59%), PRMB (6.67%). Quarter over quarter (versus its 2026-06-30 filing) the fund opened 6 new positions and exited 3; 4 existing positions rose in reported value and 4 fell.

AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.

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AUM
$2.09B

Long-equity book

Holdings
19

Distinct positions

Period
2026-09-30

Filed 2026-11-13

Q/Q Activity
+6 / −3 / ↑4 / ↓4

vs 2026-06-30

Portfolio charts

Latest quarter's book, what changed, and how the portfolio has evolved across filings.

Portfolio map

Q3 26
USFD13.6% · +12%PRMB8.6% · +16%CLBT8.4% · +52%IESC7.7% · +132%PSMT7.6% · +20%NUTX6.8% · +15%SNDA6.6% · +21%ATRO6.0% · +46%SITE5.8% · newKYIV4.9% · +10%CLBK4.7% · newONON4.6% · +13%GO4.0% · newIOND3.9% · newPAX3.3% · -0%PURR1.8% · newANAB1.7% · new

Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.

Sector mix

% of 13F value

Sectors from each company's SIC code; funds and ETFs grouped separately.

Biggest buys and sells

Q2 26 → Q3 26

Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.

13F assets and positions

5 quarters

Total reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.

Top positions over time

reported value

The eight largest current positions, valued at each quarter end.

Concentration

top 10 = 76.1%

Cumulative share of the portfolio held in the largest N positions.

Firm Profile & Key People

As of the firm’s regulatory filing dated Mar 31, 2026.

Assets Under Management
$4.77B
Discretionary
$4.77B
Employees
4
Accounts
5
Phone
(305) 347-5123
Website
Name Title / Status Ownership Type
Marques, Eduardo, De Castro Magalhaes ControlOWNER
since Dec 2024
75% or moreIndividual
O'Dowd, Niall, PatrickMANAGER
since Dec 2024
Less than 5%Individual
Perras, Jason, GabrielMANAGER
since Dec 2024
Less than 5%Individual
TRUNDLE, IAN, WESTBROOKCCO
since Dec 2024
Less than 5%Individual

Quarter-over-quarter changes

Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.

Pertento Partners LLP Holdings (2026-09-30)

Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).

# Issuer Symbol CUSIP Value Weight Shares Type
1 BERKSHIRE HATHAWAY INC Put BRK.B 084670702 $375.0M 17.93% 753,100 SH
2 US FOODS HLDG CORP USFD 912008109 $221.4M 10.59% 2,401,213 SH
3 PRIMO BRANDS CORPORATION PRMB 741623102 $139.6M 6.67% 7,328,422 SH
4 CELLEBRITE DI LTD CLBT M2197Q107 $137.2M 6.56% 12,188,963 SH
5 IES HOLDINGS INC IESC 44951W106 $125.2M 5.99% 390,030 SH
6 PRICESMART INC PSMT 741511109 $123.9M 5.92% 732,532 SH
7 NUTEX HEALTH INC NUTX 67079U306 $109.9M 5.25% 519,188 SH
8 SONIDA SENIOR LIVING INC SNDA 140475203 $108.0M 5.16% 2,874,486 SH
9 ASTRONICS CORP ATRO 046433108 $97.6M 4.66% 1,446,955 SH
10 SITEONE LANDSCAPE SUPPLY INC SITE 82982L103 $95.0M 4.54% 1,051,669 SH
11 AIRBNB INC Put ABNB 009066101 $89.1M 4.26% 554,900 SH
12 KYIVSTAR GROUP LTD KYIV G5331N101 $80.2M 3.83% 6,500,029 SH
13 COLUMBIA FINL INC CLBK 197914104 $75.8M 3.62% 6,849,958 SH
14 ON HLDG AG ONON H5919C104 $74.3M 3.55% 2,509,215 SH
15 GROCERY OUTLET HLDG CORP GO 39874R101 $64.8M 3.10% 5,757,753 SH
16 IONIC DIGITAL INC IOND 462210105 $63.3M 3.03% 787,919 SH
17 PATRIA INVESTMENTS LIMITED PAX G69451105 $54.2M 2.59% 5,337,766 SH
18 HYPERLIQUID STRATEGIES INC PURR 44916Y106 $29.7M 1.42% 2,420,890 SH
19 ANAPTYSBIO INC ANAB 032724106 $27.4M 1.31% 545,003 SH
Filing History
Period Filed AUM Holdings Accession
2026-09-30 2026-11-13 $2.09B 19 0001894571-26-000010
2026-06-30 2026-08-13 $1.86B 17 0001894571-26-000007
2026-03-31 2026-05-14 $1.37B 19 0001894571-26-000006
2025-12-31 2026-02-17 $1.06B 18 0001894571-26-000002
2025-09-30 2025-11-13 $862.1M 16 0001894571-25-000007
Filer Information
Address
67 GROSVENOR STREET
LONDON W1K 3JN
Phone
020717310572
Filing Manager
Pertento Partners LLP
LONDON, X0
Signatory
Ian Trundle
COO