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ATEN · SNDK in the 13F filings

Two to four stocks side by side among the 95 tracked managers: who lists them, how that has moved, who bought and sold in a quarter, and which managers hold more than one.

ATENSNDK
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023

Holders over time

Tracked managers listing each stock every quarter, at least, or their combined reported value. A gap is a quarter in which no tracked manager listed it. Click a quarter to compare there.
  • ATEN
  • SNDK
0204060201720222023202420252026
Holders and value by quarter
QuarterATENSNDK
Q1 20171 holders, $8.7mnone listed holders, n.a.
Q2 20171 holders, $3.2mnone listed holders, n.a.
Q4 20201 holders, $38mnone listed holders, n.a.
Q2 20212 holders, $35mnone listed holders, n.a.
Q3 20213 holders, $51mnone listed holders, n.a.
Q4 20214 holders, $69mnone listed holders, n.a.
Q1 20224 holders, $45mnone listed holders, n.a.
Q2 20222 holders, $45mnone listed holders, n.a.
Q3 20221 holders, $36mnone listed holders, n.a.
Q4 20221 holders, $41mnone listed holders, n.a.
Q1 20231 holders, $39mnone listed holders, n.a.
Q2 20233 holders, $37mnone listed holders, n.a.
Q3 20232 holders, $37mnone listed holders, n.a.
Q4 20232 holders, $31mnone listed holders, n.a.
Q1 20242 holders, $30mnone listed holders, n.a.
Q2 20242 holders, $33mnone listed holders, n.a.
Q3 20241 holders, $1.1mnone listed holders, n.a.
Q4 20242 holders, $37mnone listed holders, n.a.
Q1 20252 holders, $40m7 holders, $1.3bn
Q2 20253 holders, $50m14 holders, $1.6bn
Q3 20252 holders, $45m19 holders, $4.2bn
Q4 20253 holders, $40m27 holders, $9.8bn
Q1 20263 holders, $46m38 holders, $19.8bn
Q2 20264 holders, $82m41 holders, $55.4bn
ATEN

A10 Networks Inc

Holders
3
Reported value
$46m
Buyers
21
Sellers
7

Breadth +14 among 91 comparable managers.

Technology hardware and equipment
SNDK

SanDisk Corp

Holders
38
Reported value
$19.8bn
Buyers
18
Sellers
25

Breadth -7 among 91 comparable managers.

Technology hardware and equipmentAI infrastructure and semiconductors · L3VLUP

Who holds both, Q1 2026

Among the 40 tracked managers listing any of them. "Only" is about listed positions: a manager may hold the other below its listed range.

Only ATEN (2)

PDT Partners LLC, Quantbot Technologies LP

Only SNDK (37)

Acadian Asset Management LLC, AllianceBernstein LP, Appaloosa LP, AQR Capital Management LLC, Arrowstreet Capital LP, Brevan Howard Capital Management LP, Bridgewater Associates LP, Citadel Advisors LLC, D. E. Shaw & Co., Discovery Capital Management LLC, Element Capital Management LLC, ExodusPoint Capital Management LP, Fidelity (FMR LLC), Freestone Grove Partners LP, Holocene Advisors LP, Invesco Ltd, Jane Street Group LLC, Janus Henderson Group Ltd, Man Group PLC, Marshall Wace LLP, Millennium Management LLC, Moore Capital Management LP, Neuberger Berman Group LLC, Point72 Asset Management LP, Polen Capital Management LLC, and 12 more

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. Buyers and sellers count comparable managers (those that filed both quarters) by shares, so a rise in value with no rise in shares is the price. Large books are listed to their largest positions. These are 95 tracked managers, not the institutional market.

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