Jeffrey G. Black

XGN

Jeffrey G. Black serves as officer: Chief Financial Officer at Exagen Inc. (XGN). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

2 trades

$260.0K

Total Sells

4 trades

$471.7K

Net Position

Net Seller

$211.7K

Companies Traded

XGN, LAB, ATEC

Active Period

Mar 2021 – Sep 2026

6 total trades

Most Recent

Sell XGN

Sep 2, 2026 · $148.8K

Jeffrey G. Black's Insider Trading at Exagen Inc. (XGN)

Buys

1 · $66.4K

Sells

3 · $354.9K

Total Shares Bought

22,298

Total Shares Sold

42,664

XGN Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Sep 2, 2026	Sell	20,614	$7.22	$148.8K	323,339
Feb 25, 2026	Sell	1,584	$3.61	$5.7K	267,442
Sep 2, 2025	Sell	20,466	$9.79	$200.4K	0
Nov 19, 2024	Buy	22,298	$2.98	$66.4K	274,492

Jeffrey G. Black's Insider Trading at Standard BioTools Inc. (LAB)

Buys

1 · $193.6K

Sells

0 · $0.00

Total Shares Bought

85,984

Total Shares Sold

LAB Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
May 22, 2023	Buy	85,984	$2.25	$193.6K	85,984

Jeffrey G. Black's Insider Trading at Alphatec Holdings, Inc. (ATEC)

Buys

0 · $0.00

Sells

1 · $116.8K

Total Shares Bought

Total Shares Sold

7,000

ATEC Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Mar 9, 2021	Sell	7,000	$16.69	$116.8K	0

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