13F Insight
DOSSIER · 13F-HR · Q3 2026

MARTINGALE ASSET MANAGEMENT L P

$4.0B in tracked AUM across 822 positions as of Q3 2026.

MA
CIK 0000936944 · last filed Sep 30, 2026
Total AUM
$4.0B
as of Q3 2026
Holdings
822
−6 QoQ
positions
Whale Score
49
49
tracked
Activity
856
+97 new, −103 sold
changes this Q
AI Analysis · Q3 2026

MARTINGALE ASSET MANAGEMENT L P filed its latest 13F-HR for Q3 2026. 856 position changes this quarter — 97 new, 103 exited, 301 added, 355 trimmed.

Quarter at a glance — Q3 2026

856 material changes this filing.

ADD
WFCWells Fargo & Co
+277K sh
+$22M
0.6%
NEW
AMTAmerican Tower REIT
+122K sh
+$20M
0.5%
TRIM
CASYCaseys General Stores Inc
-24K sh
$-19M
0.0%
TRIM
TJXTJX Companies Inc
-108K sh
$-17M
0.1%
TRIM
ABTAbbott Labs
-157K sh
$-14M
0.0%
TRIM
HDHome Depot
-29K sh
$-14M
0.4%
TRIM
MSFTMicrosoft Corp
-9K sh
+$13M
1.5%

Top 10 holdings

By portfolio weight as of Q3 2026. Source: SEC EDGAR 13F-HR filings.

#HoldingValueSharesWeight
01
AAPL
Apple Inc
$64M191K1.6%02
MSFT
Microsoft Corp
$60M116K1.5%03
NVDA
Nvidia Corp
$55M240K1.4%04
GOOGL
Alphabet Inc Class A
$51M148K1.3%05
AMZN
Amazon.Com Inc
$50M200K1.2%06
META
Meta Platforms Inc
$45M62K1.1%07
LLY
Eli Lilly Co
$44M38K1.1%08
XOM
ExxonMobil Holdings Corp
$41M254K1.0%09
JPM
JP Morgan Chase & Co
$41M125K1.0%10
JNJ
Johnson & Johnson
$41M155K1.0%

Filing history

2026Q3Sep 30
$4.0B▼ 4.9%
822 positionsView →2026Q2Jun 30
$4.2B▲ 5.9%
828 positionsView →2026Q1Mar 31
$4.0B▲ 1.4%
794 positionsView →2025Q4Dec 31
$3.9B▲ 141.1%
1,051 positionsView →2025Q3Sep 30
$1.6B▼ 0.5%
468 positionsLocked2025Q2Jun 30
$1.6B▲ 4.0%
518 positionsLocked2025Q1Mar 31
$1.6B▼ 61.6%
498 positionsLocked2024Q4Dec 31
$4.1B▼ 5.7%
1,248 positionsLocked2024Q3Sep 30
$4.4B▼ 5.7%
1,292 positionsLocked2024Q2Jun 30
$4.6B▼ 7.7%
1,272 positionsLocked2024Q1Mar 31
$5.0B▲ 2.3%
1,302 positionsLocked2023Q4Dec 31
$4.9B▲ 3.1%
1,287 positionsLocked
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