ATEC ($ATEC) Insider Trading & Smart Money Activity

ATEC · Medical Devices · Latest filing Jun 11, 2026

$ATEC has 2 insider trades and 2 13F position changes on file. In the last 12 months on the open market, no insider bought and 1 insider sold ($96.92K), net -$96.92K.

Insider buyers (12 mo): 0
Insider sellers (12 mo): 1
Net insider $ (12 mo): -$96.92K
Congress trades (12 mo): 0
13F moves on file: 2
Analyst ratings on file: 0

ATEC insider buying and selling by quarter

Quarter	Insider sales	Congress buys / sales	13F added / cut
Q1 2026	0	0 / 0	0 / 0
Q2 2026	2 · $96.92K	0 / 0	0 / 2
Q3 2026	0	0 / 0	0 / 0
Q4 2026	0	0 / 0	0 / 0

Insider buys and sales count open-market trades only (Form 4 codes P and S). Grants, option exercises and tax withholding are left out.

All ATEC insider, congress, 13F and analyst activity

Date	Source	Who	Action	Shares	Value / amount	Story
Jun 11, 2026	Insider	Karen Mcginnis	Sell (Open-market sale) 10b5-1	6.05K sh	$48.46K	—
Jun 11, 2026	Insider	Karen Mcginnis	Sell (Open-market sale) 10b5-1	6.05K sh	$48.46K	—
May 15, 2026	13F	Two Sigma Advisers	Sold out	-1.64M sh		—
May 15, 2026	13F	Two Sigma Advisers	Sold out	-1.64M sh		—

1W / 1M / 6M = how ATEC moved from the trade or filing date.

Insider trading in ATEC: who is buying and selling

Insider	Role	Trades	Open-market net	Shares held	Last trade
Karen Mcginnis		2	-$96.92K		Jun 11, 2026

Institutions moving ATEC (13F)

Two Sigma Advisers2

Frequently asked questions

Are ATEC insiders buying or selling?

Over the last 12 months 0 insiders made 0 open-market purchases worth $0 and 1 insider made 2 open-market sales worth $96.92K, a net -$96.92K.

What is the latest insider trade in ATEC?

Karen Mcginnis filed a sell (open-market sale) of 6.05K sh worth $48.46K on Jun 11, 2026.

Which institutions changed their ATEC positions?

Recent 13F filers moving the stock include Two Sigma Advisers.

Other medical devices stocks

All stocks Insider cluster buys Top insider purchases Congress 13F institutions

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.

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