Question 1

Which hedge funds and institutional investors hold MTX?

Accepted Answer

StonkWhisper tracks 13F filings submitted to the SEC by institutional investment managers with over $100 million in assets. The whale tracker for MTX 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 MTX whale holdings?

Accepted Answer

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

Question 3

How current is the whale data for MTX?

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 MTX?

Accepted Answer

QoQ changes for MTX 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
State Street	1.2M	$85.8M	0.0%	$2896.4B
American Century	1.0M	$72.3M	0.0%	$194.3B
Brandes	674.8K	$47.9M	0.3%	$14.1B
Fidelity (FMR)	658.4K	$46.7M	0.0%	$1898.4B
DE Shaw	217.3K	$15.4M	0.0%	$166.3B
Arrowstreet	125.6K	$8.9M	0.0%	$184.8B
Geode Capital	110.7K	$7.8M	0.0%	$1607.5B
Gabelli	97.2K	$6.9M	0.0%	$14.8B
BlackRock	69.5K	$4.9M	0.0%	$5723.5B
DFA	65.4K	$4.6M	0.0%	$481.4B
Two Sigma	62.3K	$4.4M	0.0%	$123.9B
Millennium	32.9K	$2.3M	0.0%	$240.3B
Northern Trust	11.7K	$830K	0.0%	$756.6B
Gotham Asset	11.5K	$817K	0.0%	$32.7B
Bridgewater	10.7K	$762K	0.0%	$22.4B
Aristeia	6.0K	$429K	0.0%	$4.8B
Citadel	5.5K	$391K	0.0%	$618.5B
Neuberger Berman (Eisman)	4.3K	$304K	0.0%	$131.4B
Brevan Howard	2.9K	$207K	0.0%	$11.3B
Franklin Templeton	1.5K	$105K	—	$408.3B
LSV	268.0K	$19K	0.0%	$46.4M
AQR Capital	100	$7K	—	$218.4B

MTX

Who Holds MTX

Changes This Quarter