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MARTINGALE ASSET MANAGEMENT L P — 13F Holdings & Portfolio

CIK 936944 · latest 13F-HR filed 2026-08-13

Backtest portfolio

MARTINGALE ASSET MANAGEMENT L P manages $4.22B in 13F-reported U.S. long-equity assets across 828 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are AAPL (1.44%), GOOGL (1.32%), AMZN (1.21%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 110 new positions and exited 76; 436 existing positions rose in reported value and 200 fell.

AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.

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AUM
$4.22B

Long-equity book

Holdings
828

Distinct positions

Period
2026-06-30

Filed 2026-08-13

Q/Q Activity
+110 / −76 / ↑436 / ↓200

vs 2026-03-31

Portfolio charts

Latest quarter's book, what changed, and how the portfolio has evolved across filings.

Portfolio map

Q2 26
AAPL1.4% · -4%GOOGL1.3% · -3%AMZN1.2% · +1%LLY1.2% · +1%NVDA1.1% · +35%MSFT1.1% · +5%JNJ1.1% · -4%JPM1.0% · +4%BRK.B1.0% · +2%META1.0% · +24%ABBV1.0% · -2%XOM0.9% · -1%CSCO0.9% · -37%V0.8% · -0%MRK0.8% · -7%WMT0.8% · -3%GE0.8% · -2%MO0.8% · -4%COST0.8% · -3%MA0.8% · +1%VLO0.7% · -4%TRV0.7% · -2%BMY0.7% · -3%PM0.7% · -4%AXP0.7% · -4%PG0.7% · -11%MPC0.7% · -4%ALL0.7% · -4%HD0.7% · -2%RTX0.7% · -0%GD0.7% · -0%VZ0.7% · -1%KO0.7% · +15%CVX0.6% · -2%TMUS0.6% · +35%T0.6% · -6%JBHT0.6% · -9%ED0.6% · -1%CAH0.6% · -2%AVGO0.6% · +18%LMT0.6% · +0%HIG0.6% · -7%PEP0.6% · -1%DTE0.6% · -7%SNX0.5% · +145%GILD0.5% · +1%NEM0.5% · -4%PGR0.5% · +5%AEE0.5% · -0%AMGN0.5% · -2%PSX0.5% · +67%FFIV0.5% · +7%FDX0.5% · -2%KR0.5% · +0%MCD0.5% · -0%EXC0.5% · -9%AMP0.5% · +2%COF0.5% · +3%AEP0.5% · -2%TJX0.5% · -3%

Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.

Sector mix

% of 13F value

Sectors from each company's SIC code; funds and ETFs grouped separately.

Biggest buys and sells

Q1 26 → Q2 26

Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.

13F assets and positions

4 quarters

Total reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.

Top positions over time

reported value

The eight largest current positions, valued at each quarter end.

Concentration

top 10 = 11.5%

Cumulative share of the portfolio held in the largest N positions.

Firm Profile & Key People

Name Title / Status Ownership Type

Quarter-over-quarter changes

Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.

Top Adds (vs prior quarter)

Show all 436 →

Top Trims

Show all 200 →

New Positions

Show all 110 →

Exited Positions

Show all 76 →

MARTINGALE ASSET MANAGEMENT L P Holdings (2026-06-30)

Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).

# Issuer Symbol CUSIP Value Weight Shares Type
1 Apple Inc AAPL 037833100 $60.7M 1.44% 209,754 SH
2 Alphabet Inc Class A GOOGL 02079K305 $55.9M 1.32% 156,332 SH
3 Amazon.Com Inc AMZN 023135106 $51.0M 1.21% 214,015 SH
4 Eli Lilly Co LLY 532457108 $48.9M 1.16% 40,766 SH
5 Nvidia Corp NVDA 67066G104 $48.3M 1.14% 241,143 SH
6 Microsoft Corp MSFT 594918104 $46.8M 1.11% 125,476 SH
7 Johnson & Johnson JNJ 478160104 $46.8M 1.11% 184,122 SH
8 JP Morgan Chase & Co JPM 46625H100 $42.7M 1.01% 130,544 SH
9 Berkshire Hathaway Inc B BRK.B 084670702 $42.7M 1.01% 85,344 SH
10 Meta Platforms Inc META 30303M102 $41.1M 0.97% 72,879 SH
11 AbbVie Inc ABBV 00287Y109 $40.4M 0.96% 160,685 SH
12 ExxonMobil Holdings Corp XOM 30233Q108 $37.3M 0.88% 273,090 SH
13 Cisco Systems CSCO 17275R102 $37.2M 0.88% 317,063 SH
14 Visa Inc V 92826C839 $35.3M 0.84% 102,812 SH
15 Merck and Co Inc MRK 58933Y105 $35.3M 0.84% 274,491 SH
16 Walmart Inc WMT 931142103 $34.5M 0.82% 304,290 SH
17 GE Aerospace GE 369604301 $34.2M 0.81% 91,515 SH
18 Altria Group Inc MO 02209S103 $33.2M 0.79% 462,014 SH
19 Costco Wholesale Corp COST 22160K105 $32.9M 0.78% 35,161 SH
20 Mastercard Inc Class A MA 57636Q104 $32.3M 0.76% 62,845 SH
21 Valero Energy Corp VLO 91913Y100 $31.1M 0.74% 119,405 SH
22 Travelers Corp TRV 89417E109 $30.8M 0.73% 93,416 SH
23 Bristol Myers Squibb BMY 110122108 $30.0M 0.71% 520,919 SH
24 Philip Morris Int'l PM 718172109 $28.9M 0.69% 159,946 SH
25 American Express AXP 025816109 $28.8M 0.68% 85,205 SH
26 Procter & Gamble Co PG 742718109 $28.8M 0.68% 196,304 SH
27 Marathon Petroleum MPC 56585A102 $28.7M 0.68% 112,067 SH
28 Allstate Corp ALL 020002101 $28.6M 0.68% 120,099 SH
29 Home Depot HD 437076102 $28.5M 0.68% 80,881 SH
30 RTX Corporation RTX 75513E101 $28.2M 0.67% 148,783 SH
31 General Dynamics GD 369550108 $28.1M 0.67% 79,295 SH
32 Verizon Communications VZ 92343V104 $28.0M 0.66% 660,634 SH
33 Coca-Cola Co KO 191216100 $27.5M 0.65% 338,464 SH
34 Chevron Corp CVX 166764100 $27.2M 0.64% 164,221 SH
35 T-Mobile US Inc TMUS 872590104 $26.3M 0.62% 156,620 SH
36 AT&T T 00206R102 $25.4M 0.60% 1,225,194 SH
37 Hunt (JB) Transport JBHT 445658107 $25.2M 0.60% 86,977 SH
38 Consolidated Edison ED 209115104 $24.7M 0.59% 223,640 SH
39 Cardinal Health Inc CAH 14149Y108 $24.5M 0.58% 102,931 SH
40 Broadcom Inc AVGO 11135F101 $24.4M 0.58% 64,591 SH
41 Lockheed Martin Corp LMT 539830109 $24.3M 0.58% 47,657 SH
42 Hartford Insurance Group Inc HIG 416515104 $24.0M 0.57% 181,261 SH
43 Pepsico Inc PEP 713448108 $23.9M 0.57% 176,321 SH
44 DTE Energy Company DTE 233331107 $23.6M 0.56% 154,854 SH
45 TD Synnex Corp SNX 87162W100 $23.2M 0.55% 86,701 SH
46 Gilead Sciences Inc GILD 375558103 $23.0M 0.54% 181,879 SH
47 Newmont Corp NEM 651639106 $22.9M 0.54% 244,785 SH
48 Progressive Corp PGR 743315103 $22.9M 0.54% 104,623 SH
49 Ameren Corporation AEE 023608102 $22.8M 0.54% 201,750 SH
50 Amgen Inc AMGN 031162100 $22.7M 0.54% 62,656 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-13 $4.22B 828 0000936944-26-000006
2026-03-31 2026-05-13 $3.99B 794 0000936944-26-000003
2025-12-31 2026-02-13 $3.93B 1,051 0000936944-26-000002
2025-09-30 2025-11-13 $3.98B 1,032 0000936944-25-000010
Filer Information
Address
888 BOYLSTON STREET
SUITE 1400
BOSTON, MA 02199
Phone
(617) 424-4700
Filing Manager
MARTINGALE ASSET MANAGEMENT L P
BOSTON, MA
Signatory
Betty Davis
Manager of Operations