Question 1

Which hedge funds and institutional investors hold MATX?

Accepted Answer

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

Accepted Answer

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

Question 3

How current is the whale data for MATX?

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 MATX?

Accepted Answer

QoQ changes for MATX 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	1.5M	$246.3M	0.1%	$194.3B
State Street	1.2M	$198.0M	0.0%	$2896.4B
Capital Research	635.1K	$104.1M	0.0%	$644.6B
Balyasny	315.2K	$51.7M	0.1%	$77.1B
DE Shaw	176.5K	$28.9M	0.0%	$166.3B
William Blair	167.1K	$27.4M	0.1%	$30.3B
Schonfeld	146.1K	$23.9M	0.2%	$14.2B
Geode Capital	110.8K	$18.2M	0.0%	$1607.5B
Hudson Bay	92.6K	$15.2M	0.1%	$29.0B
DFA	67.3K	$11.0M	0.0%	$481.4B
Two Sigma	62.8K	$10.3M	0.0%	$123.9B
Hotchkis & Wiley	61.2K	$10.0M	0.0%	$32.4B
Millennium	50.0K	$8.2M	0.0%	$240.3B
Northern Trust	24.5K	$4.0M	0.0%	$756.6B
Citadel	20.5K	$3.4M	0.0%	$618.5B
Bridgewater	14.6K	$2.4M	0.0%	$22.4B
Point72	12.4K	$2.0M	0.0%	$78.1B
Citadel	11.5K	$1.9M	0.0%	$618.5B
Citadel	10.8K	$1.8M	0.0%	$618.5B
Man Group	10.5K	$1.7M	0.0%	$55.1B
Winton	9.5K	$1.6M	0.1%	$2.9B
GMO	5.8K	$956K	0.0%	$39.1B
Fidelity (FMR)	5.6K	$918K	—	$1898.4B
Gotham Asset	2.3K	$371K	0.0%	$32.7B
Brevan Howard	2.0K	$331K	0.0%	$11.3B
Marshall Wace	1.9K	$317K	0.0%	$100.4B
Franklin Templeton	974	$160K	—	$408.3B
LSV	309.3K	$51K	0.1%	$46.4M
BlackRock	256	$42K	—	$5723.5B
Neuberger Berman (Eisman)	189	$31K	—	$131.4B
AQR Capital	20	$3K	—	$218.4B
Acadian	3.4K	$551	0.0%	$70.5M

MATX

Who Holds MATX

Changes This Quarter