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Woodstock Corp.

CIK:0001008877
Investment Adviser
$1B AUM
157 holdings
Boston, MA, USA
Founded:1929
8 employees
Latest filing:Sep 30, 2025

Woodstock Corporation is a private wealth management and investment advisory firm based in Boston, Massachusetts. Founded in 1929, the company is one of the oldest private wealth managers in Boston, providing highly personalized portfolio management, financial counseling, estate planning, and personal trust and fiduciary services. Serving primarily high net worth individuals, their families, trusts, corporations, and philanthropic institutions, Woodstock employs around 8 people as of 2024 and manages over $1.2 billion in assets. The firm is family-owned, with a tradition of generational client relationships and a focus on long-term, individualized wealth management.

Investment Strategy

Woodstock Corporation specializes in customized investment portfolios composed of individually selected stocks and bonds, tailored to each client’s specific objectives and risk profile. As a registered investment adviser, the firm adheres to a fiduciary standard, focusing on puting client interests first. Their philosophy emphasizes long-term growth through diversified portfolios, in-house research, active management, and tax awareness. They avoid third-party managed products except when suitable, prioritizing direct ownership of securities and providing frequent, personalized communication and advice to build deep, generational client relationships.

Top Buys
G
GOOGAlphabet Inc Class C
+$10.6M
N
NVDANVIDIA Corp
+$8.7M
A
AAPLApple Inc
+$8.3M
G
GOOGLAlphabet Inc Class A
+$7.6M
O
ORLYO'Reilly Automotive Inc
+$7.5M
Top Sells
I
ISRGIntuitive Surgical Inc
-$8.8M
F
FTNTFortinet Inc
-$6.6M
F
FIFiserv Inc
-$2.7M
N
NVEENv5 Global Inc
-$2.7M
C
COSTCostco Wholesale Corp
-$1.6M

Top Holdings

N
NVDANVIDIA Corp
+9.6%$110.3M
M
MSFTMicrosoft Corp
+7.1%$82.1M
O
ORLYO'Reilly Automotive Inc
+5.2%$60.3M
A
AAPLApple Inc
+3.7%$43.1M
G
GOOGAlphabet Inc Class C
+3.4%$39.3M

Equity Positions (153)

TickerSecurityWeightMarket ValueSharesAvg CostPriceChange (QoQ)
N
NVDA
NVIDIA Corp9.56%$110.3M591,364$4.37$186.58+$8.7M
M
MSFT
Microsoft Corp7.12%$82.1M158,567$38.99$517.95+$2.5M
O
ORLY
O'Reilly Automotive Inc5.22%$60.3M559,037$92.37$107.81+$7.5M
A
AAPL
Apple Inc3.74%$43.1M169,409$21.76$254.63+$8.3M
G
GOOG
Alphabet Inc Class C3.41%$39.3M161,557$41.94$243.55+$10.6M

Industry Allocation

SEMICONDUCTORS & RELATED DEVICES
+10.7%
SERVICES-PREPACKAGED SOFTWARE
+10.2%
SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC.
+9.2%
PHARMACEUTICAL PREPARATIONS
+8.3%
RETAIL-AUTO & HOME SUPPLY STORES
+5.3%