Robert Joseph Ball

Robert Joseph Ball serves as director, officer: CEO & Executive Chairman at SHOULDER INNOVATIONS, INC. (SI). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

3 trades

$263.2K

Total Sells

1 trades

$187.7K

Net Position

Net Buyer

$75.5K

Companies Traded

Active Period

Sep 2025 – Sep 2026

4 total trades

Most Recent

Sell SI

Sep 14, 2026 · $187.7K

Robert Joseph Ball's Insider Trading at SHOULDER INNOVATIONS, INC. (SI)

Buys

3 · $263.2K

Sells

1 · $187.7K

Total Shares Bought

17,400

Total Shares Sold

10,175

SI Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Sep 14, 2026	Sell	10,175	$18.45	$187.7K	380,824
Mar 17, 2026	Buy	2,200	$15.18	$33.4K	278,866
Dec 11, 2025	Buy	7,200	$14.86	$107.0K	0
Sep 11, 2025	Buy	8,000	$15.34	$122.8K	0

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