Question 1

Which hedge funds and institutional investors hold PDFS?

Accepted Answer

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

Accepted Answer

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

Question 3

How current is the whale data for PDFS?

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 PDFS?

Accepted Answer

QoQ changes for PDFS 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
William Blair	1.3M	$41.1M	0.1%	$30.3B
State Street	1.2M	$39.0M	0.0%	$2896.4B
Geode Capital	112.0K	$3.7M	0.0%	$1607.5B
Brown Capital	104.3K	$3.4M	0.5%	$704.0M
Fisher Investments	51.4K	$1.7M	0.0%	$294.9B
Citadel	34.6K	$1.1M	0.0%	$618.5B
DFA	26.3K	$859K	0.0%	$481.4B
Man Group	18.8K	$614K	0.0%	$55.1B
Citadel	11.4K	$373K	0.0%	$618.5B
Caxton	10.2K	$335K	0.0%	$4.4B
Northern Trust	5.9K	$193K	—	$756.6B
BlackRock	502	$16K	—	$5723.5B
AQR Capital	457	$15K	—	$218.4B
Fidelity (FMR)	229	$7K	—	$1898.4B
Acadian	51.0K	$2K	0.0%	$70.5M

PDFS

Who Holds PDFS

Changes This Quarter