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Ghisallo Capital Management LLC

CIK:0001825214
Asset Manager
$4B AUM
185 holdings
Boston, MA, United States
Founded:2020
31 employees
Latest filing:Jun 30, 2025

Ghisallo Capital Management LLC is an investment manager headquartered in Boston, Massachusetts. Founded in 2020, it is registered with the U.S. Securities and Exchange Commission and maintains additional offices in London and Hong Kong. The firm manages $3.8 billion in assets and employs approximately 31 professionals, primarily investors, with no brokers. Ghisallo serves institutional clients and offers global investment management services.

Investment Strategy

Ghisallo Capital Management LLC manages a diversified portfolio focused on both equities and convertible securities. The firm reports 185 holdings as of Q2 2025, with a significant allocation to top positions such as TMUS, BRO, DELL, and convertible debt instruments. Its investment approach is proactive, frequently initiating new positions while actively managing and rebalancing its existing holdings. Ghisallo aims for substantial capital appreciation through dynamic portfolio management and global market exposure.

Top Buys
T
TMUST-MOBILE US INC
+$536.1M
B
BROBROWN & BROWN INC
+$232.8M
D
DELLDELL TECHNOLOGIES INC
+$183.9M
A
ADTADT INC DEL
+$126.7M
T
TTWOTAKE-TWO INTERACTIVE SOFTWAR
+$97.1M
Top Sells
A
AEPAMERICAN ELEC PWR CO INC
-$127.6M
L
LINELINEAGE INC
-$36.9M
U
ULSUL SOLUTIONS INC
-$17.1M
G
GFLGFL ENVIRONMENTAL INC
-$14.0M
A
AESIATLAS ENERGY SOLUTIONS INC
-$10.0M

Top Holdings

T
TMUST-MOBILE US INC
+14.3%$536.1M
B
BROBROWN & BROWN INC
+6.2%$232.8M
D
DELLDELL TECHNOLOGIES INC
+4.9%$183.9M
A
ADTADT INC DEL
+3.5%$130.8M
L
LOARLOAR HOLDINGS INC
+2.7%$101.2M

Equity Positions (141)

TickerSecurityWeightMarket ValueSharesAvg CostPriceChange (QoQ)
T
TMUS
T-MOBILE US INC14.32%$536.1M2,250,000$238.26$238.26+$536.1M
B
BRO
BROWN & BROWN INC6.22%$232.8M2,100,000$110.87$110.87+$232.8M
D
DELL
DELL TECHNOLOGIES INC4.91%$183.9M1,500,000$122.60$122.60+$183.9M
A
ADT
ADT INC DEL3.50%$130.8M15,443,574$8.46$8.47+$126.7M
L
LOAR
LOAR HOLDINGS INC2.71%$101.2M1,175,000$83.91$86.17+$87.1M

Industry Allocation

RADIOTELEPHONE COMMUNICATIONS
+14.3%
INSURANCE AGENTS, BROKERS & SERVICE
+6.3%
ELECTRONIC COMPUTERS
+4.9%
SERVICES-PREPACKAGED SOFTWARE
+4.8%
SECURITY & COMMODITY BROKERS, DEALERS, EXCHANGES & SERVICES
+4.4%

Team (3)

NameRoleLocationLinkedIn
Daniel Concessi
Daniel Concessi
Equity Research AnalystBoston, MA , United States
Michael Santini
Michael Santini
Portfolio Manager and PartnerNew York, NY , United States
C
Carlo Agostinelli
Managing DirectorHong Kong