ATER · Aterian, Inc. · Shareholders & Ownership
Substantial doubt about the company's ability to continue as a going concern.
“Based on these factors, management concluded that these conditions continue to raise substantial doubt about the Company’s ability to continue as a going concern within one year after the date these Condensed Consolidated Financial Statements are issued. Management’s ongoing plans include driving operational efficiencies across the retained business, optimizing supply chain expenditures, and evaluating additional strategic alternatives. The accompanying Condensed Consolidated Financial Statements do not include any adjustments that might result from the outcome of this uncertainty.”View the 10-Q filed Aug 14, 2026
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Every disclosed holder of ATER in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns ATER
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positionsNo chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.
| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 684,100 | 3.81% |
| Insiders (Forms 3, 4, 5) | 63,619,130 | 354.09% |
| 13D/G-only blocks | 0 | 0.00% |
| Remaining | 46,336,320 | -257.90% |
| Registered funds (N-PORT, not summed) | 167,265 | 0.93% |
Shares outstanding: 17,966,910, the issuer's latest cover-page count restated onto today's split basis.
Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of ATER
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
Chang Woei Jiann
13D
CIK 2157391 · Unknown · Sep 25, 2026
Item 4 purpose: Control or board seats, Other
not summed
|
26,121,180 | ||
| 1.1 |
|
26,121,180 | ||
| 2 |
|
26,121,180 | ||
| 2.1 |
|
26,121,180 | ||
| 3 |
|
8,038,030 | ||
| 3.1 |
|
8,038,030 | ||
| 4 |
|
1,081,148 | ||
| 5 |
|
497,442 | ||
| 6 |
|
376,358 | ||
| 7 |
|
306,524 | ||
| 8 |
|
301,205 | ||
| 9 |
|
301,205 | ||
| 10 |
RENAISSANCE TECHNOLOGIES LLC
13F
CIK 1037389 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
223,030 | ||
| 11 |
|
162,465 | ||
| 12 |
|
161,991 | ||
| 13 |
|
150,402 | ||
| 14 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
72,289 | ||
| 15 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Sep 30, 2026
|
61,128 | ||
| 16 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
57,047 | ||
| 17 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
57,047 | ||
| 18 |
BRIDGEWAY CAPITAL MANAGEMENT, LLC
13F
CIK 1107261 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
52,500 | ||
| 18.1 |
Ultra-Small Company Fund
Fund
S000004423 · Registered fund · Jun 30, 2026
Bridgeway Funds, Inc., not summed
|
52,500 | ||
| 19 |
JANE STREET GROUP, LLC
13F
CIK 1595888 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
49,348 | ||
| 20 |
SUSQUEHANNA INTERNATIONAL GROUP, LLP
13F
CIK 1446194 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
47,818 | ||
| 21 |
Fidelity Extended Market Index Fund
Fund
S000006021 · Registered fund · Aug 31, 2026
Fidelity Concord Street Trust, not summed
|
39,654 | ||
| 22 |
XTX Topco Ltd
13F
CIK 1828301 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
31,280 | ||
| 23 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
25,994 | ||
| 24 |
|
24,007 | ||
| 25 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
13,165 | ||
| 26 |
|
12,704 | ||
| 27 |
Fidelity Total Market Index Fund
Fund
S000006026 · Registered fund · Aug 31, 2026
Fidelity Concord Street Trust, not summed
|
10,022 | ||
| 28 |
Fidelity Series Total Market Index Fund
Fund
S000065248 · Registered fund · Aug 31, 2026
Fidelity Concord Street Trust, not summed
|
8,030 | ||
| 29 |
Tower Research Capital LLC (TRC)
13F
CIK 1533421 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,795 | ||
| 30 |
CITIGROUP INC
13F
CIK 831001 · Bank · Sep 30, 2026
|
3,368 | ||
| 31 |
JPMORGAN CHASE & CO
13F
CIK 19617 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,784 | ||
| 32 |
Vanguard Global Advisers, LLC
13F
CIK 1811242 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,574 | ||
| 33 |
SIMPLEX TRADING, LLC
13F
CIK 1488542 · Unknown · Sep 30, 2026
|
1,235 | ||
| 34 |
OSAIC HOLDINGS, INC.
13F
CIK 1677044 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
581 | ||
| 35 |
SBI Securities Co., Ltd.
13F
CIK 1851815 · Non-US institution · Sep 30, 2026
|
316 | ||
| 36 |
BNP PARIBAS ARBITRAGE, SA
13F
CIK 1166588 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
73 | ||
| 37 |
STANCE CAPITAL LLC
13F
CIK 2056334 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
36 | ||
| 38 |
PROATHLETE WEALTH MANAGEMENT LLC
13F
CIK 2012065 · Unknown · Sep 30, 2026
|
21 | ||
| 39 |
Guggenheim Active Allocation Fund
Fund
· Registered fund · Aug 31, 2026
Guggenheim Active Allocation Fund, not summed
|
12 | ||
| 40 |
BARCLAYS PLC
13F
CIK 312069 · Bank · Sep 30, 2026
|
4 | ||
| 41 |
Caitong International Asset Management Co., Ltd
13F
CIK 1963355 · Unknown · Sep 30, 2026
|
1 | ||
| 42 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1 | ||
| 43 |
NATIONAL BANK OF CANADA /FI/
13F
CIK 926171 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1 |
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.