Question 1

Which hedge funds and institutional investors hold ATEC?

Accepted Answer

StonkWhisper tracks 13F filings submitted to the SEC by institutional investment managers with over $100 million in assets. The whale tracker for ATEC shows which major funds hold positions, their portfolio weight, share counts, and how those positions changed quarter over quarter.

Question 2

What does conviction level mean for ATEC whale holdings?

Accepted Answer

Conviction level reflects how significant ATEC is within a fund's overall portfolio. A high-conviction position means the manager has allocated a large percentage of their portfolio to ATEC, suggesting strong directional confidence in the stock.

Question 3

How current is the whale data for ATEC?

Accepted Answer

Institutional 13F filings are required within 45 days of each calendar quarter end (March 31, June 30, September 30, December 31). StonkWhisper processes filings as they are published on SEC EDGAR, so data reflects the most recently reported quarter.

Question 4

What do quarter-over-quarter changes tell me about ATEC?

Accepted Answer

QoQ changes for ATEC show whether institutional managers are increasing, decreasing, initiating, or exiting their positions. New positions and significant increases can signal growing institutional conviction, while exits or decreases may indicate waning confidence.

Manager	Shares	Value	% of Portfolio	Manager AUM
American Century	6.4M	$69.9M	0.0%	$194.3B
State Street	3.0M	$33.0M	0.0%	$2896.4B
Millennium	2.8M	$30.6M	0.0%	$240.3B
Point72	2.5M	$27.1M	0.0%	$78.1B
Tremblant	2.2M	$23.8M	0.8%	$3.1B
Two Sigma	2.0M	$22.2M	0.0%	$123.9B
Renaissance Tech	1.1M	$11.5M	0.0%	$63.9B
Schonfeld	766.4K	$8.3M	0.1%	$14.2B
First Eagle	696.6K	$7.6M	0.0%	$59.0B
Arrowstreet	507.0K	$5.5M	0.0%	$184.8B
Geode Capital	404.1K	$4.4M	0.0%	$1607.5B
PDT Partners	400.9K	$4.4M	0.3%	$1.7B
Tudor	266.5K	$2.9M	0.0%	$53.9B
Citadel	185.9K	$2.0M	0.0%	$618.5B
Brevan Howard	144.7K	$1.6M	0.0%	$11.3B
Citadel	75.4K	$820K	0.0%	$618.5B
Franklin Templeton	62.8K	$683K	0.0%	$408.3B
Citadel	51.1K	$556K	0.0%	$618.5B
Northern Trust	31.9K	$347K	—	$756.6B
Marshall Wace	25.5K	$277K	0.0%	$100.4B
Man Group	19.0K	$206K	0.0%	$55.1B
DE Shaw	18.5K	$202K	0.0%	$166.3B
Invesco	4.1K	$45K	—	$653.3B
Fidelity (FMR)	2.5K	$27K	—	$1898.4B
AQR Capital	341	$4K	—	$218.4B
BlackRock	195	$2K	—	$5723.5B
Acadian	126.8K	$1K	0.0%	$70.5M

ATEC

Who Holds ATEC

Changes This Quarter