Chicago Capital Management, LLC

CIK

1580162

Location

CHICAGO, IL

Portfolio Value

Micro $62,849,434

Diversification

Diversified

Filing Date

Global Rank

#6,174 / 8,232 ▲ 1107

Top Industry

Biotechnology 55.6%

3Y Alpha vs SPY

-40.8%

Period ended 2 months ago

Filed Apr 27, 2026 · 48d

18 quarters · since Sep 2020

Clone Performance

Jun 2023–Jun 2026 · vs SPY

Hypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.

Cloned portfolio

-45.5%

SPY

+76.3%

Annualised alpha

-39.1%

Max drawdown

−62.2%

Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.

Portfolio Concentration

12 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025

Top Position

17.4%

−11.6 pts

Top 5

79.3%

−18.5 pts

Top 10

99.4%

−0.6 pts

HHI

1,421

Diversified−981

Portfolio Trend

18 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026

Sector	% Portfolio	Value	Positions
Healthcare	55.6%	$34,973,835	5
Financial Services	23.9%	$14,994,632	4
Industrials	19.8%	$12,473,227	2
Communication Services	0.6%	$407,740	1

Last Quarter's Activity

Export CSV

Mar 31, 2026 vs Dec 31, 2025

Added To

Positions the filer increased

3 positions

Ticker	Company	Δ Shares	Shares	Value
FOLD	AMICUS THERAPEUTICS, INC.	+266,000	666,000	$9,630,360
BLFY	Blue Foundry Bancorp	+126,278	146,012	$1,933,198
JHG	Janus Henderson Group PLC	+38,000	213,000	$10,941,810
No positions match the current search.

Trimmed

Positions the filer reduced

No qualifying positions this quarter.

New Positions

Positions the filer opened this quarter

8 positions

Ticker	Company	Shares	Value
GTLS	Chart Industries Inc	53,000	$10,957,750
ACLX	Arcellx, Inc.	92,951	$10,672,633
APLS	Apellis Pharmaceuticals, Inc.	190,000	$7,643,700
TERN	Terns Pharmaceuticals, Inc.	129,225	$6,812,742
DHIL	DIAMOND HILL INVESTMENT GROUP INC	11,300	$1,944,730
THR	Thermon Group Holdings, Inc.	30,069	$1,515,477
DAWN	Day One Biopharmaceuticals, Inc.	10,000	$214,400
HTBK	HERITAGE COMMERCE CORP	14,014	$174,894
No positions match the current search.

Sold Out

Positions the filer fully exited

3 positions

Ticker	Company	Shares	Value
EXAS	EXACT SCIENCES CORP	86,122	$8,746,550
HOLX	HOLOGIC INC	85,000	$6,331,650
NWFL	Norwood Financial Corp	15,069	$422,685
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

12 positions · $62,849,434 total · as of Mar 31, 2026

All sectors Communication Services Financial Services Healthcare Industrials

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
GTLS	Chart Industries Inc Industrials	NEW	53,000	NEW	$10,957,750	NEW	17.43%
JHG	Janus Henderson Group PLC Financial Services	Added	213,000	+38,000	$10,941,810	+31.4%	17.41%
ACLX	Arcellx, Inc. Healthcare	NEW	92,951	NEW	$10,672,633	NEW	16.98%
FOLD	AMICUS THERAPEUTICS, INC. Healthcare	Added	666,000	+266,000	$9,630,360	+69.1%	15.32%
APLS	Apellis Pharmaceuticals, Inc. Healthcare	NEW	190,000	NEW	$7,643,700	NEW	12.16%
TERN	Terns Pharmaceuticals, Inc. Healthcare	NEW	129,225	NEW	$6,812,742	NEW	10.84%
DHIL	DIAMOND HILL INVESTMENT GROUP INC Financial Services	NEW	11,300	NEW	$1,944,730	NEW	3.09%
BLFY	Blue Foundry Bancorp Financial Services	Added	146,012	+126,278	$1,933,198	+688.1%	3.08%
THR	Thermon Group Holdings, Inc. Industrials	NEW	30,069	NEW	$1,515,477	NEW	2.41%
EA	Electronic Arts Inc. Communication Services	Held	2,000	0	$407,740	−0.2%	0.65%
DAWN	Day One Biopharmaceuticals, Inc. Healthcare	NEW	10,000	NEW	$214,400	NEW	0.34%
HTBK	HERITAGE COMMERCE CORP Financial Services	NEW	14,014	NEW	$174,894	NEW	0.28%