Mariner’s Portillo's PTLO Stock Holding History

Mariner’s Portfolio PTLO Stock Details PTLO Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$66K	Buy	12,468 +1,382	+12%	+$7.52K	﹤0.01%	3391
2025 Q4	$50.3K	Buy	+11,086	New	+$57.9K	﹤0.01%	3413
2025 Q2	–	Sell	-10,366	Closed	-$123K	–	3638
2025 Q1	$123K	Buy	+10,366	New	+$135K	﹤0.01%	3140
2024 Q1	–	Sell	-11,432	Closed	-$182K	–	3220
2023 Q4	$182K	Buy	+11,432	New	+$177K	﹤0.01%	2715

Other funds holding PTLO

OAG

Orbis Allan Gray Hamilton, Bermuda $23.7B AUM 65.43% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return

Engaged Capital Newport Beach, California $303M AUM 2.09% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

ZIG

Zuckerman Investment Group Chicago, Illinois $1.07B AUM 29.43% 1-Year Est. Return

Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Select Equity Group New York $19.5B AUM 17.33% 1-Year Est. Return

Mariner's PTLO Position: Q1 2026 in Review

Mariner increased its Portillo's (PTLO) stake by 12% in Q1 2026, buying an estimated $7.52K and bringing the position to 12,468 shares worth $66K. The position accounts for ﹤0.01% of the portfolio, ranked #3391.

Mariner first reported a position in PTLO in Q4 2023 and has held it in 4 quarters since. The position peaked at $182K in Q4 2023. 186 funds tracked by Wall St. Rank hold PTLO as of Q1 2026.

Mariner held 12,468 shares of Portillo's worth $66K as of Q1 2026.
Mariner bought 1,382 Portillo's shares in Q1 2026, an estimated $7.52K.
Portillo's made up ﹤0.01% of Mariner's portfolio in Q1 2026, its #3391 holding.
Mariner first reported a position in Portillo's in Q4 2023 and has held it in 4 quarters since.
Mariner's Portillo's position peaked at $182K in Q4 2023.
186 funds tracked by Wall St. Rank held Portillo's as of Q1 2026.

Based on Mariner's 13F filing for Q1 2026, filed 13 May 2026.