ABVC
Abvc Biopharma, Inc.
$1.80
+0.03 (+1.69%)
At close · Jul 2
Going-concern doubt
— flagged May 18, 2026
Substantial doubt about the company's ability to continue as a going concern.
“These conditions give rise to substantial doubt as to whether the Company will be able to continue as a going concern.”View the 10-Q filed May 18, 2026
Market Cap
$46.80M
Shares
26,000,442
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 14
Total Value: $802,420
Total Shares: 827,243
Institutional Ownership Trend
11 quarters
Holder Concentration
Across 14 13F filers · Δ vs Dec 31, 2025Top Holder
26.7%
−6.2 pts
Top 5
81.8%
−2.0 pts
Top 10
97.9%
−0.9 pts
HHI
1,668
Moderately concentrated−294
Quarterly Activity
vs Dec 31, 2025
New
6
Increased
2
Decreased
3
Sold Out
7
Unchanged
3
Holder count:
-1
Institutional value:
-56.9%
Shares held:
-5.5%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Mega GEODE CAPITAL MANAGEMENT, LLC | +18,804 | 221,169 | |
| Mid Tower Research Capital LLC (TRC) | +2,230 | 5,423 |
Top Sellers
vs Dec 31, 2025| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Large RENAISSANCE TECHNOLOGIES LLC | −19,163 | 95,100 | |
| Mega UBS Group AG | −817 | 1,771 | |
| Mega JANE STREET GROUP, LLC | −167 | 10,700 |
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Mega VANGUARD CAPITAL MANAGEMENT LLC | 190,574 | $184,856 | |
| Mega VANGUARD FIDUCIARY TRUST CO | 97,363 | $94,442 | |
| Small TWO SIGMA SECURITIES, LLC | 21,023 | $20,392 | |
| Mega DIMENSIONAL FUND ADVISORS LP | 12,227 | $11,860 | |
| Large Squarepoint Ops LLC | 10,547 | $10,230 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mega VANGUARD GROUP INC | 287,937 | $613,305 | |
| Mega CITADEL ADVISORS LLC | 55,543 | $118,306 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | 20,100 | $42,813 | |
| Mid XTX Topco Ltd | 11,261 | $23,985 | |
| Mega MORGAN STANLEY | 5,175 | $11,022 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Mega GEODE CAPITAL MANAGEMENT, LLC | $214,533 | 26.74% | 221,169 | Shares | Defined | 2026-05-15 | ||||
| Mega VANGUARD CAPITAL MANAGEMENT LLC | $184,856 | 23.04% | 190,574 | Shares | Defined | 2026-05-15 | ||||
| Mega VANGUARD FIDUCIARY TRUST CO Bank | $94,442 | 11.77% | 97,363 | Shares | Defined | 2026-05-08 | ||||
| Large RENAISSANCE TECHNOLOGIES LLC | $92,247 | 11.50% | 95,100 | Shares | Sole | 2026-05-14 | ||||
| Mega STATE STREET CORP | $70,616 | 8.80% | 72,800 | Shares | Defined | 2026-05-15 | ||||
| Mega BlackRock, Inc. | $54,748 | 6.82% | 56,442 | Shares | Sole | 2026-05-13 | ||||
| Mega NORTHERN TRUST CORP Bank | $31,124 | 3.88% | 32,087 | Shares | Defined | 2026-05-14 | ||||
| Small TWO SIGMA SECURITIES, LLC Broker-Dealer | $20,392 | 2.54% | 21,023 | Shares | Sole | 2026-05-15 | ||||
| Mega DIMENSIONAL FUND ADVISORS LP | $11,860 | 1.48% | 12,227 | Shares | Sole | 2026-05-07 | ||||
| Mega JANE STREET GROUP, LLC | $10,379 | 1.29% | 10,700 | Call | Defined | 2026-05-12 | ||||
| Large Squarepoint Ops LLC | $10,230 | 1.27% | 10,547 | Shares | Defined | 2026-05-15 | ||||
| Mid Tower Research Capital LLC (TRC) | $5,260 | 0.66% | 5,423 | Shares | Defined | 2026-05-15 | ||||
| Mega UBS Group AG | $1,717 | 0.21% | 1,771 | Shares | Defined | 2026-05-05 | ||||
| Mega ROYAL BANK OF CANADA Bank | $16 | 0.00% | 17 | Shares | Defined | 2026-05-15 | ||||
| No holders match your search. | ||||||||||
Key facts
CIK
1173313
CUSIP
00091F304