Disclosed positions

Estimated from their latest filings — positions may have changed since

$4.72M

combined est. value

Stock	Shares	Price	Value	Weight	As of
MKLMARKEL GROUP INC.	2,279	$1,868.43	$4.26M	90%	2026-05-20
NVTnVent Electric plc	2,736	$153.18	$419.2K	9%	2026-05-15
CMS-PCCMS ENERGY CORP	2,769	$16.58	$45.9K	1%	2026-02-25

MKL

MARKEL GROUP INC.

$4.26M

2,279 sh

NVT

nVent Electric plc

$419.2K

2,736 sh

CMS-PC

CMS ENERGY CORP

$45.9K

2,769 sh

Activity

Open-market buy & sell volume

BuySell

Total +$333.1K bought

Most bought

NVT

$179.7K

CMS-PC

$153.4K

All filings on record

Every Form 4 transaction we track for this filer

all 8buys 3sells 0

Stock	Transaction	Date	~6mo later
MKLMARKEL GROUP INC.	Grant — · 89 sh	2026-05-20	—
NVTnVent Electric plc	Grant — · 976 sh	2026-05-15	—
CMS-PCCMS ENERGY CORP	Buy $153.4K · 2,000 sh	2026-02-25	in progress
CMS-PCCMS ENERGY CORP	Grant — · 769 sh	2026-02-20	—
NVTnVent Electric plc	Buy $9.0K · 100 sh	2025-08-13	+28.8%
NVTnVent Electric plc	Buy $170.7K · 1,900 sh	2025-08-13	+28.8%
NVTnVent Electric plc	Grant — · 1,748 sh	2025-07-17	—
MKLMARKEL GROUP INC.	Other $110.0K · 63 sh	2025-06-13	—

MKLGrant

2026-05-20 · MARKEL GROUP INC.

89

—

NVTGrant

2026-05-15 · nVent Electric plc

976

—

CMS-PCBuy

2026-02-25 · CMS ENERGY CORP

$153.4K

in progress

CMS-PCGrant

2026-02-20 · CMS ENERGY CORP

769

—

NVTBuy

2025-08-13 · nVent Electric plc

$9.0K

+28.8%

NVTBuy

2025-08-13 · nVent Electric plc

$170.7K

+28.8%

NVTGrant

2025-07-17 · nVent Electric plc

1,748

—

MKLOther

2025-06-13 · MARKEL GROUP INC.

$110.0K

—

Outcomes measure each disclosed buy against the closing price ~6 months (120 trading days) later, with the S&P 500 over the same span for context. Pre-scheduled 10b5-1 plan trades are excluded from the record. Positions are estimated from the latest reported post-transaction holdings, split-adjusted, at the latest close. Built from SEC Form 4 filings and market prices — past outcomes, not predictions or advice.