ATER ATERIAN INC
FollowCOM NEW (common), issuer CIK 1757715
32 managers (32 13F filers) reported a position in ATER shares at 2025-03-31, 861,210 shares in all. 6 filers opened a position and 5 filers sold out during the quarter.
- Managers
- 32
- 13F filers
- 32
- New
- 6
- Added
- 12
- Reduced
- 6
- Sold out
- 5
- Shares held by filers
- 861,210
Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.
13D and 13G filers
Each filer's latest stake. The shares are the aggregate the reporting persons state, which can include entities that file no 13F.
- Lazar David E.
8,038,030 shares, 3.1% in a 13D/A as of 2026-09-25,0001829126-26-010591
Accepted , ingested - Chang Woei Jiann
26,121,180 shares, 10% in a 13D as of 2026-09-25,0001437749-26-031910
Accepted , ingested - Michelle Chiam Sin Ling
26,121,180 shares, 10% in a 13D as of 2026-09-25,0001437749-26-031908
Accepted , ingested
Insider trades
No Form 4 transaction on this security in the data.
13F holders, Q1 2025
Filers in the available 13F reports with a share position at 2025-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.
| Holder | Shares | Value | % of portfolio | Change | Source |
|---|---|---|---|---|---|
| VANGUARD GROUP INCin group VANGUARD GROUP INC | 283,987 | $596K | <0.01% | 0 | 13F-HRTimelineGroup |
| SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO… | 100,760 | $212K | <0.01% | +32,989 | 13F-HRTimelineGroup |
| BlackRock, Inc.in group BlackRock, Inc. | 73,322 | $154K | <0.01% | 0 | 13F-HRTimelineGroup |
| GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC | 59,496 | $125K | <0.01% | +1,195 | 13F-HRTimelineGroup |
| HRT FINANCIAL LP | 55,937 | $117K | <0.01% | new | 13F-HRTimeline |
| CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC | 39,178 | $82.3K | <0.01% | +34,927 | 13F-HRTimelineGroup |
| Squarepoint Ops LLCin group Squarepoint Ops LLC | 37,301 | $78.3K | <0.01% | +10,531 | 13F-HR/ATimelineGroup |
| TWO SIGMA SECURITIES, LLC | 28,688 | $60.2K | 0.01% | new | 13F-HRTimeline |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 28,648 | $60.2K | 0.01% | +263 | 13F-HRTimeline |
| PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC | 24,532 | $51.5K | <0.01% | +3,780 | 13F-HRTimelineGroup |
| STATE STREET CORPin group STATE STREET CORP | 24,007 | $50.4K | <0.01% | 0 | 13F-HRTimelineGroup |
| DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP | 21,778 | $45.7K | <0.01% | 0 | 13F-HRTimelineGroup |
| GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC | 21,392 | $44.9K | <0.01% | +9,026 | 13F-HR/ATimelineGroup |
| Virtu Financial LLCin group Virtu Financial LLC | 12,532 | $26K | <0.01% | new | 13F-HRTimelineGroup |
| NORTHERN TRUST CORPin group NORTHERN TRUST CORP | 10,879 | $22.8K | <0.01% | 0 | 13F-HRTimelineGroup |
| SIMPLEX TRADING, LLC | 8,445 | $17K | <0.01% | -16,734 | 13F-HRTimeline |
| CITIGROUP INCin group CITIGROUP INC | 7,311 | $15.4K | <0.01% | +7,095 | 13F-HRTimelineGroup |
| GROUP ONE TRADING LLC | 6,330 | $13.3K | <0.01% | +63 | 13F-HRTimeline |
| MORGAN STANLEYin group MORGAN STANLEY | 4,365 | $9.17K | <0.01% | -2,893 | 13F-HRTimelineGroup |
| UBS Group AGin group UBS Group AG | 4,094 | $8.6K | <0.01% | +3,467 | 13F-HRTimelineGroup |
| JPMORGAN CHASE & COin group JPMORGAN CHASE & CO | 2,798 | $5.88K | <0.01% | -2 | 13F-HRTimelineGroup |
| Apollo Management Holdings, L.P.in group Apollo Management Holdings, L… | 2,276 | $4.78K | <0.01% | 0 | 13F-HRTimelineGroup |
| Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T… | 1,984 | $4.17K | <0.01% | +155 | 13F-HRTimelineGroup |
| OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC. | 680 | $1.43K | <0.01% | -633 | 13F-HRTimelineGroup |
| BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/ | 225 | $473 | <0.01% | +14 | 13F-HRTimelineGroup |
| SBI Securities Co., Ltd. | 161 | $338 | <0.01% | -15 | 13F-HRTimeline |
| BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS | 73 | $153 | <0.01% | 0 | 13F-HRTimelineGroup |
| PROATHLETE WEALTH MANAGEMENT LLC | 21 | $44 | <0.01% | new | 13F-HRTimeline |
| VISION FINANCIAL MARKETS LLC | 5 | $11 | <0.01% | new | 13F-HRTimeline |
| Ascentis Wealth Management, LLCin group Ascentis Wealth Management, L… | 4 | $8 | <0.01% | new | 13F-HRTimelineGroup |
| NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/ | 1 | $2 | <0.01% | 0 | 13F-HRTimelineGroup |
| CONCOURSE FINANCIAL GROUP SECURITIES, I… | 0 | $0 | -9 | 13F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios. |
Events
Chang Woei Jiann reported 26,121,180 ATER shares, 10% of the class, as of 2026-09-25, in a 13D filed 2026-10-02. 0001437749-26-031910
Accepted , ingestedMichelle Chiam Sin Ling reported 26,121,180 ATER shares, 10% of the class, as of 2026-09-25, in a 13D filed 2026-10-02. 0001437749-26-031908
Accepted , ingestedLazar David E. reported 8,038,030 ATER shares, 3.1% of the class, as of 2026-09-25, in a 13D/A filed 2026-09-29. 0001829126-26-010591
Accepted , ingested