A10 Networks, Inc.

ATEN

Exchange: NYSE
Industry: Computer Communications Equipment
SEC CIK: 0001580808

SEC filings (opens in a new tab)

In the last 90 days, A10 Networks, Inc. insiders filed 0 open-market purchases and 2 sales; 313 institutions reported holding it in 13F filings for Q2 2026, worth $2.86B in total; no superinvestor holds it.

Q4 2021 vs. Q3 2021

How the institutions holding A10 Networks, Inc. changed between Q3 2021 and Q4 2021.

All holders in Q4 2021 All holders in Q3 2021

13F holders of ATEN: Q3 2021 compared with Q4 2021
Measure	Q3 2021	Of which not filed for Q4 2021	Q4 2021	Change
Holders	151	1	176	+26
Shares	67.2M	40.6K	64.8M	−2.42M (−3.6%)
Value	$906.0M	$548.0K	$1.07B	+$167.6M (+18.5%)

1 institution that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so the changes leave them out.

New holders (42)

Institutions that held A10 Networks, Inc. at the end of Q4 2021 but not at the end of Q3 2021.

Institutions new to ATEN in Q4 2021
Institution	Shares	Value	% of portfolio
Intrinsic Edge Capital Management LLC	713,976	$11.8M	0.89%
Ameriprise Financial Inc	674,125	$11.2M	0.00%
Allspring Global Investments Holdings, LLC	522,356	$8.66M	0.01%
Tudor Investment Corp Et Al	230,225	$3.82M	0.07%
Lewis Capital Management, LLC	174,294	$2.89M	3.03%
Rafferty Asset Management, LLC	155,318	$2.58M	0.01%
Acadian Asset Management LLC	132,407	$2.19M	0.01%
Advisor Resource Council	127,245	$2.11M	0.16%
Putnam Investments LLC	114,928	$1.91M	0.00%
Jennison Associates LLC	95,631	$1.59M	0.00%
Squarepoint Ops LLC	75,879	$1.26M	0.01%
D. E. Shaw & Co., Inc.	54,258	$900.0K	0.00%
Dynamic Technology Lab Private Ltd	50,735	$841.0K	0.09%
Blueshift Asset Management, LLC	33,984	$563.0K	0.05%
Quantedge Capital Pte Ltd	33,800	$560.0K	0.24%
Cascade Investment Advisors, Inc.	32,905	$545.6K	0.32%
Massachusetts Financial Services Co	32,766	$543.0K	0.00%
PDT Partners, LLC	22,791	$378.0K	0.03%
First Quadrant L P	22,355	$371.0K	0.04%
Arrowstreet Capital, Limited Partnership	19,941	$331.0K	0.00%
PEAK6 Investments LLC	19,444	$322.0K	0.01%
Fox Run Management, L.L.C.	19,302	$320.0K	0.19%
Robeco Institutional Asset Management B.V.	18,065	$300.0K	0.00%
HRT Financial LP	17,533	$290.0K	0.00%
Gotham Asset Management, LLC	14,725	$244.0K	0.01%
ProShare Advisors LLC	13,130	$218.0K	0.00%
Cornerstone Investment Partners, LLC	12,000	$199.0K	0.01%
Janus Henderson Group PLC	11,612	$192.0K	0.00%
Teacher Retirement System of Texas	11,434	$190.0K	0.00%
Leonteq Securities AG	10,566	$175.2K	0.01%
State of Wyoming	6,277	$104.0K	0.05%
Daiwa Securities Group Inc.	6,095	$101.0K	0.00%
Marshall Wace, LLP	3,705	$62.0K	0.00%
New York State Teachers Retirement System	3,500	$58.0K	0.00%
Psagot Value Holdings Ltd. / (Israel)	3,500	$58.0K	0.01%
Itau Unibanco Holding S.A.	3,317	$55.0K	0.00%
Copeland Capital Management, LLC	2,282	$38.0K	0.00%
NEXT Financial Group, Inc	1,000	$17.0K	0.00%
Rockbridge Investment Management, LCC	241	$4.00K	0.00%
CoreCap Advisors, LLC	130	$2.00K	0.00%
Shore Point Advisors, LLC	151	$2.00K	0.00%
Covestor Ltd	59	$1.00K	0.00%

Sold out (16)

Institutions that held A10 Networks, Inc. at the end of Q3 2021 and filed for Q4 2021 without it.

Institutions that sold out of ATEN in Q4 2021
Institution	Shares, Q3 2021	Value, Q3 2021
Bank of Montreal	344,140	$4.67M
Cooper Creek Partners Management LLC	143,240	$1.93M
King Luther Capital Management Corp	109,000	$1.47M
Davide Leone & Partners Investment Co Ltd.	97,303	$1.31M
Winton Group Ltd	38,970	$525.0K
Sawgrass Asset Management LLC	25,875	$349.0K
Summit Global Investments	22,725	$306.0K
Jane Street Group, LLC	19,908	$268.0K
Tibra Equities Europe Ltd	19,400	$262.0K
Man Group plc	10,888	$147.0K
Counterpoint Mutual Funds LLC	1,464	$20.0K
Catalyst Capital Advisors LLC	746	$10.0K
D'Orazio & Associates, Inc.	335	$5.00K
Quantbot Technologies LP	301	$4.00K
Carroll Financial Associates, Inc.	86	$1.00K
Quadrant Capital Group LLC	80	$1.00K

Not filed for Q4 2021 yet (1)

Institutions that held A10 Networks, Inc. at the end of Q3 2021 and haven't filed a 13F for Q4 2021. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ATEN in Q3 2021 that haven't filed for Q4 2021
Institution	Shares, Q3 2021	Value, Q3 2021
Adirondack Research & Management Inc.	40,636	$548.0K