DOSSIER · 13F-HR · Q1 2026

Ipswich Investment Management Co., Inc.

$426M in tracked AUM across 185 positions as of Q1 2026.

II
CIK 0001463753 · last filed Mar 31, 2026
Total AUM
$426M
as of Q1 2026
Holdings
185
positions
Whale Score
44
44
tracked
Activity
no data
changes this Q
AI Analysis · Q1 2026
Comprehensive Analysis of Ipswich Investment Management Co., Inc. SEC 13F Filing
Portfolio Overview

Ipswich Investment Management Co., Inc. has reported a significant transformation in its portfolio for the period ending December 31, 2025. The total portfolio value surged by 157.0%, increasing from $168.06 million in the prior quarter to $431.84 million. This dramatic appreciation is likely driven by a combination of strong market performance in underlying assets and substantial capital in...

The portfolio currently consists of 185 positions. Despite the increase in asset base, the manager maintains a relatively diversified approach, though with a clear concentration in top-tier names. The top 10 holdings account for approximately 31.7% of the total portfolio value. The data indicates a high turnover strategy this quarter, characterized by aggressive rotation: the firm initiated 31 new positions and completely exited 31 positions, while only 6 stakes were increased and 13 were reduced. This suggests a tactical reallocation rather than a passive buy-and-hold philosophy.

Key Holdings

The portfolio is heavily anchored in large-cap technology and blue-chip growth stocks, with a distinct tilt toward market leaders.

Quarter at a glance — Q1 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q1 2026.

#HoldingValueSharesWeight
01
MSFT
MICROSOFT CORP
$23M62K5.4%
02
AAPL
APPLE INC
$21M84K5.0%
03
GOOGL
ALPHABET INC
$16M56K3.8%
04
XOM
EXXON MOBIL CORP
$15M86K3.4%
05
COST
COSTCO WHOLESALE CORPORATION
$14M14K3.3%
06
IWV
ISHARES TR
$14M37K3.2%
07
JPM
JPMORGAN CHASE & CO
$13M45K3.1%
08
NVDA
NVIDIA CORPORATION
$12M71K2.9%
09
CAT
CATERPILLAR INC
$11M16K2.6%
10
AMZN
AMAZON COM INC
$10M48K2.4%

Filing history

2026Q1Mar 31
$426M 1.4%
185 positionsView →
2025Q4Dec 31
$432M 0.9%
185 positionsView →
2025Q3Sep 30
$428M 3.3%
185 positionsView →
2025Q2Jun 30
$414M 2.9%
185 positionsLocked
2025Q1Mar 31
$403M 3.1%
186 positionsLocked
2024Q4Dec 31
$416M 3.8%
186 positionsLocked
2024Q3Sep 30
$432M 1.1%
192 positionsLocked
2024Q2Jun 30
$427M 0.1%
185 positionsLocked
2024Q1Mar 31
$427M 7.9%
196 positionsLocked
2023Q4Dec 31
$396M 8.0%
186 positionsLocked
2023Q3Sep 30
$366M 3.6%
184 positionsLocked
2023Q2Jun 30
$380M 3.8%
190 positionsLocked
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