ATERIAN INC (ATER) Institutional Ownership Changes & 13F Activity
ATERIAN INC (ATER). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Renaissance Technologies LLC, Geode Capital Management, Llc, Bridgeway Capital Management, Llc, Xtx Topco Ltd, and Jane Street Group, Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Bridgeway Capital Management, Llc | Buy | +52,500 | — | 52,500 | $69.30K | Q2 2026 | Aug 14, 2026 |
| Xtx Topco Ltd | Sell | -26,638 | -46.0% | 31,280 | $41.29K | Q2 2026 | Aug 14, 2026 |
| Jane Street Group, Llc | Buy | +17,168 | +53.3% | 49,348 | $65.14K | Q2 2026 | Aug 14, 2026 |
| Susquehanna International Group, Llp | Buy | +10,827 | +29.3% | 47,818 | $63.12K | Q2 2026 | Aug 14, 2026 |
| Osaic Holdings, Inc. | Buy | +350 | +151.5% | 581 | $765.00 | Q2 2026 | Aug 14, 2026 |
| Renaissance Technologies LLC | Buy | +174,383 | +358.5% | 223,030 | $294.40K | Q2 2026 | Aug 13, 2026 |
| Ubs Group Ag | Buy | +7,205 | +131.0% | 12,704 | $16.77K | Q2 2026 | Aug 13, 2026 |
| Northern Trust Corp | Buy | +2,286 | +21.0% | 13,165 | $17.38K | Q2 2026 | Aug 13, 2026 |
| Geode Capital Management, Llc | Sell | -72,746 | -54.3% | 61,128 | $80.71K | Q2 2026 | Aug 12, 2026 |
| Simplex Trading, Llc | Buy | +6,172 | — | 6,172 | $8.15K | Q2 2026 | Aug 12, 2026 |
| Jpmorgan Chase & Co | Buy | +2,784 | — | 2,784 | $3.73K | Q2 2026 | Aug 12, 2026 |
| Tower Research Capital Llc (Trc) | Buy | +2,329 | +158.9% | 3,795 | $5.01K | Q2 2026 | Aug 11, 2026 |
| Sbi Securities Co., Ltd. | Sell | -4 | -1.3% | 311 | $411.00 | Q2 2026 | Jul 23, 2026 |
| Royal Bank Of Canada | Sell | -5,386 | -100.0% | 0 | $0.00 | Q2 2026 | May 15, 2026 |
| Apollo Management Holdings, L.P. | Sell | -2,276 | -100.0% | 0 | $0.00 | Q2 2026 | May 15, 2026 |
| Virtu Financial Llc | Sell | -10,600 | -100.0% | 0 | $0.00 | Q2 2026 | May 14, 2026 |
| Ifp Advisors, Inc | Sell | -11 | -100.0% | 0 | $0.00 | Q2 2026 | Apr 13, 2026 |
Frequently asked questions about ATER activity
Which institutional owners are buying ATER?
Institutional owners buying ATER include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in ATER activity?
"Buy" means an investor increased their reported position in ATER compared to the prior reporting period. This reflects growing exposure to ATERIAN INC (ATER) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in ATER increasing?
Institutional interest in ATER can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
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