James Bylund

RGEN

James Bylund serves as Chief Operating Officer at Repligen Corporation (RGEN). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

6 trades

$897.7K

Net Position

Net Seller

$897.7K

Companies Traded

RGEN

Active Period

Feb 2025 – Nov 2025

6 total trades

Most Recent

Sell RGEN

Nov 18, 2025 · $331.3K

James Bylund's Insider Trading at Repligen Corporation (RGEN)

Buys

0 · $0.00

Sells

6 · $897.7K

Total Shares Bought

Total Shares Sold

5,887

RGEN Price Chart

Loading chart...

Date	Type	Shares	Avg Price	Value
Nov 18, 2025↗	Sell	2,191	$151.21	$331.3K
Apr 1, 2025↗	Sell	454	$128.50	$58.3K
Mar 13, 2025↗	Sell	175	$142.44	$24.9K
Mar 3, 2025↗	Sell	1,239	$155.38	$192.5K
Feb 27, 2025↗	Sell	1,285	$156.54	$201.2K
Feb 24, 2025↗	Sell	543	$164.74	$89.5K