William A Koefoed

William A Koefoed serves as Chief Financial Officer at OneStream, Inc. Class A Common Stock (OS). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

11 trades

$4.10M

Net Position

Net Seller

$4.10M

Companies Traded

Active Period

Jul 2024 – Dec 2025

11 total trades

Most Recent

Sell OS

Dec 16, 2025 · $169.7K

William A Koefoed's Insider Trading at OneStream, Inc. Class A Common Stock (OS)

Buys

0 · $0.00

Sells

11 · $4.10M

Total Shares Bought

Total Shares Sold

163,134

OS Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Dec 16, 2025	Sell	9,571	$17.73	$169.7K	206,127
Sep 16, 2025	Sell	8,943	$19.03	$170.2K	221,983
Jul 28, 2025	Sell	25,000	$25.00	$625.0K	237,839
Jun 27, 2025	Sell	25,000	$26.77	$669.3K	237,839
Jun 18, 2025	Sell	9,354	$27.90	$261.0K	237,839
Jun 12, 2025	Sell	6,501	$28.23	$183.5K	247,193
May 29, 2025	Sell	25,000	$28.76	$719.0K	253,694
Feb 20, 2025	Sell	10,000	$25.04	$250.4K	0
Jan 17, 2025	Sell	10,000	$26.57	$265.7K	0
Dec 17, 2024	Sell	13,765	$30.00	$412.9K	6,196
Jul 26, 2024	Sell	20,000	$18.85	$377.0K	0