AI summary pending
View Full Filing (SEC EDGAR)A10 Networks Inc
$24.63-0.2%
+$378.3M
Net Activity
+3.75% total shares
Institutions Holding
315
Popularity Rank
#2018
Avg Weight
0.07%
Total Value
$3.0B
Market Cap
$1.8B
315 institutions currently hold ATEN, with 175 net buyers and 129 net sellers this quarter.
Institutional Moves (Q2 2026)
Majority Increased
Based on recent trading activity
Net Selling Institutions
129
Net Buying Institutions
175
Top 5 by Value
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Across its top 20 institutional holders, ATEN's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 4/100, avg. turnover score 40/100).
ATEN ranks #2018 out of 37696 tracked stocks by institutional interest — one of the most closely watched names in our coverage.
315 institutions disclose a position in ATEN, but none treat it as a major bet — even Bridge City Capital, LLC, its most concentrated holder, allocates just 2.5% of its own portfolio to it.
Nisa Investment Advisors, LLC has added to its ATEN position for two straight quarters, increasing it by $84.4K to reach $121.3K today.
ATEN is down 0.2% today, but institutions show net buying of $378.3M this quarter — a divergence between today's price move and the underlying institutional flow.
ATEN posted net income of $43.0M over the trailing twelve months, and currently trades at a P/E of 42.2.
+$611.8M
Total Buy Value
$282.3M
Total Sell Value
175
Net Buyers
129
Net Sellers
ATEN
Q2 2026
Top 5 Institutional Movers
ATEN does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.
13F data as of 2026-09-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
2
Filings (90d)
$460K
Total Est. Value
17K shares
Planned Shares
| Filer | Filing Date | Est. Value |
|---|---|---|
| DANA ELIZABETH WOLF | 2026-08-25 | $68K |
| ROBERT S WEBER | 2026-08-11 | $392K |
Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。
No Schedule 13D/13G filings for this ticker
4
Filings (14d)
AI summary pending
View Full Filing (SEC EDGAR)A10 Networks filed a prospectus supplement on August 6, 2026, under its existing automatic shelf registration statement on Form S-3. This 8-K is just a procedural filing to attach the law firm's opinion (Pillsbury Winthrop Shaw Pittman LLP) confirming the securities covered by the supplement can be legally issued and sold. In plain terms, the company is keeping its shelf registration paperwork in order — it does not mean a new offering has started.
View Full Filing (SEC EDGAR)AI summary pending
View Full Filing (SEC EDGAR)AI summary pending
View Full Filing (SEC EDGAR)002121101
The most-added stocks by 13F institutions this quarter
Institutions Holding
6,281
Total reported value
$2.2T
3256 13F institutions increased their position this quarter
Institutions Holding
6,028
Total reported value
$3.6T
3055 13F institutions increased their position this quarter
Institutions Holding
6,191
Total reported value
$1.8T
2996 13F institutions increased their position this quarter
The most widely held stocks tracked across all 13F institutions
Institutions Holding
4,137
Total reported value
$649.5B
Held by 4137 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,136
Total reported value
$713.2B
Held by 4136 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,115
Total reported value
$390.3B
Held by 4115 institutions — one of the most-tracked stocks on AlphaSMO
Access ATEN's institutional ownership data programmatically:
REST API
curl https://alphasmo.com/api/v1/market/stock/ATENCLI
npx alphasmo stocks get ATENFull API & MCP documentation →