Portolan Capital Management, LLC

CIK

1350290

City

BOSTON

State / Country

MA

Stock

PACK — Ranpak Holdings Corp.

Top Portfolio Positions

142 positions · $1,899,948,334 total · as of Mar 31, 2026

Ticker	Company	Shares	Value (USD)	% of Portfolio	Open
MOD	Modine Manufacturing Co Consumer Cyclical	412,092	$89,304,457	4.70%
TTMI	Ttm Technologies Inc Technology	727,494	$70,872,465	3.73%
CSTL	Castle Biosciences Inc Healthcare	2,700,566	$66,298,894	3.49%
CLS	Celestica Inc Technology	197,863	$55,734,049	2.93%
VIRT	Virtu Financial, Inc. Financial Services	1,211,887	$53,298,790	2.81%
AKAM	Akamai Technologies Inc Technology	423,442	$48,632,313	2.56%
VPG	Vishay Precision Group, Inc. Technology	1,019,868	$44,282,668	2.33%
PARR	Par Pacific Holdings, Inc. Energy	693,834	$43,461,761	2.29%
POWL	Powell Industries Inc Industrials	75,830	$41,030,096	2.16%
BIDU	Baidu, Inc. Communication Services	366,429	$40,827,519	2.15%

Portfolio Trend

25 quarters · across all stocks

Holdings in PACK

Compact Export CSV

Shares Held

Position Value (USD)

11 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$6,953,221	1,947,681	-0.2%	Shares	Sole	2026-05-15
2025-12-31	$10,553,449	1,950,730	+518.4%	Shares	Sole	2026-02-17
2025-09-30	$1,772,862	315,456	-45.0%	Shares	Sole	2025-11-13
2025-03-31	$3,109,031	573,622	-8.7%	Shares	Sole	2025-05-15
2023-12-31	$3,658,254	628,566	+398.2%	Shares	Sole	2024-02-14
2021-12-31	$4,741,243	126,164	-3.4%	Shares	Sole	2022-02-14
2021-09-30	$3,501,538	130,557	-70.1%	Shares	Sole	2021-11-15
2021-06-30	$10,944,993	437,275	+22.4%	Shares	Sole	2021-08-16
2021-03-31	$7,168,160	357,336	-18.1%	Shares	Sole	2021-05-17
2020-12-31	$5,860,700	436,064	+99.9%	Shares	Sole	2021-02-16
2020-09-30	$2,077,206	218,194	—	Shares	Sole	2020-11-16
No 13F history on record for this holder in this stock.