Katharine Weymouth

GHC

Katharine Weymouth serves as director at Graham Holdings Company (GHC). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

6 trades

$256.8K

Total Sells

3 trades

$1.33M

Net Position

Net Seller

$1.07M

Companies Traded

XMTR, RSG, CABO, GHC

Active Period

Dec 2021 – Mar 2026

9 total trades

Most Recent

Buy XMTR

Mar 2, 2026 · $50.0K

Katharine Weymouth's Insider Trading at Graham Holdings Company (GHC)

Buys

0 · $0.00

Sells

2 · $755.2K

Total Shares Bought

Total Shares Sold

934

GHC Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Nov 14, 2024	Sell	378	$949.26	$358.8K	1,615
Mar 15, 2024	Sell	556	$712.99	$396.4K	1,993

Katharine Weymouth's Insider Trading at Republic Services, Inc. (RSG)

Buys

1 · $100.1K

Sells

1 · $574.9K

Total Shares Bought

478

Total Shares Sold

4,304

RSG Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Dec 11, 2025	Buy	478	$209.46	$100.1K	0
Mar 20, 2023	Sell	4,304	$133.56	$574.9K	1,504

Katharine Weymouth's Insider Trading at Xometry, Inc. (XMTR)

Buys

4 · $137.0K

Sells

0 · $0.00

Total Shares Bought

4,115

Total Shares Sold

XMTR Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Mar 2, 2026	Buy	1,215	$41.15	$50.0K	3,615
Mar 5, 2024	Buy	500	$16.86	$8.4K	22,555
Aug 15, 2023	Buy	1,200	$16.41	$19.7K	17,383
Dec 13, 2021	Buy	1,200	$49.10	$58.9K	1,562

Katharine Weymouth's Insider Trading at Cable One, Inc. (CABO)

Buys

1 · $19.6K

Sells

0 · $0.00

Total Shares Bought

150

Total Shares Sold

CABO Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Jun 16, 2025	Buy	150	$130.88	$19.6K	0

Related Insiders

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director, officer: Chief Executive Officer

XMTRSell · Apr 3, 2026

Sanjeev Singh Sahni

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XMTRSell · Apr 3, 2026

Vaidyanathan Raghavan

officer: Chief Technology Officer

XMTRSell · Apr 3, 2026

James Miln

officer: Chief Financial Officer

XMTRSell · Apr 3, 2026

Subir Dutt

officer: Chief Sales Officer

XMTRSell · Apr 3, 2026

Emily Rollins

Director

XMTRSell · Apr 3, 2026

Todd M Koetje

See Remarks.

CABOBuy · Mar 3, 2026

Elyse Carlsen

CAO

RSGSell · Feb 19, 2026

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