119 tracked 13F filers disclose a position in ABEO as of the latest SEC 13F filings, a combined $201.1M in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Nantahala Capital Management, LLC | $31.7M | 5.1M | ▲+2.5% Added · +123K sh | Q2 2026 | |
| 2 | BlackRock, Inc. | $14.3M | 3.2M | ▲+1.1% Added · +36K sh | Q1 2026 | |
| 3 | Cable Car Capital, LP | $18.6M | 3.0M | —Held | Q2 2026 | |
| 4 | AIGH Capital Management LLC | $18.5M | 3.0M | ▼−3.6% Reduced · −113K sh | Q2 2026 | |
| 5 | MONTANOVA CAPITAL, LLC | $12.0M | 2.7M | —Held | Q1 2026 | |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | $9.7M | 2.2M | →First observed position No prior filed position | Q1 2026 | |
| 7 | KENNEDY CAPITAL MANAGEMENT LLC | $5.7M | 1.3M | ▲+20% Added · +213K sh | Q1 2026 | |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | $7.8M | 1.3M | ▲+4.2% Added · +51K sh | Q2 2026 | |
| 9 | GOLDMAN SACHS GROUP INC | $5.1M | 1.1M | ▲+125% Added · +628K sh | Q1 2026 | |
| 10 | STATE STREET CORP | $6.4M | 1.0M | ▲+8.7% Added · +83K sh | Q2 2026 | |
| 11 | NAN FUNG TRINITY (HK) Ltd | $5.9M | 957K | —Held | Q2 2026 | |
| 12 | AWM Investment Company, Inc. | $3.6M | 803K | ▲+3.7% Added · +29K sh | Q1 2026 | |
| 13 | Diametric Capital, LP | $4.7M | 755K | ▲+23% Added · +144K sh | Q2 2026 | |
| 14 | J. Goldman & Co LP | $2.9M | 641K | ▲+61% Added · +242K sh | Q1 2026 | |
| 15 | SILVERARC CAPITAL MANAGEMENT, LLC | $3.8M | 610K | ▼−5.9% Reduced · −39K sh | Q2 2026 | |
| 16 | BALYASNY ASSET MANAGEMENT L.P. | $2.6M | 590K | ▼−0.3% Reduced · −2K sh | Q1 2026 | |
| 17 | Stonepine Capital Management, LLC | $3.4M | 557K | ▼−25% Reduced · −189K sh | Q2 2026 | |
| 18 | CITIGROUP INC | $2.3M | 522K | ▲+0.3% Added · +1K sh | Q1 2026 | |
| 19 | NATIONAL BANK OF CANADA /FI/ | $2.2M | 500K | ▲New +500K sh | Q1 2026 | |
| 20 | Knoll Capital Management, LLC | $2.2M | 486K | ▲+106% Added · +250K sh | Q1 2026 | |
| 21 | NORTHERN TRUST CORP | $2.0M | 436K | ▲+4.0% Added · +17K sh | Q1 2026 | |
| 22 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1.9M | 432K | ▼−38% Reduced · −269K sh | Q1 2026 | |
| 23 | MILLENNIUM MANAGEMENT LLC | $1.9M | 425K | ▲+24% Added · +82K sh | Q1 2026 | |
| 24 | PANAGORA ASSET MANAGEMENT INC | $2.5M | 409K | ▲+105% Added · +210K sh | Q2 2026 | |
| 25 | TANG CAPITAL MANAGEMENT LLC | $1.8M | 400K | ▼−60% Reduced · −600K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
Last quarter, 13 funds opened a new position in ABEO and 21 added to an existing one, while 11 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| NVIDIA CORPNVDA | 50 funds | $186.2B |
| MICROSOFT CORPMSFT | 49 funds | $124.3B |
| META PLATFORMS INC-CLASS AMETA | 48 funds | $53.5B |
| ELI LILLY & COLLY | 48 funds | $36.0B |
| AMAZON.COM INCAMZN | 47 funds | $86.2B |
| TESLA INCTSLA | 47 funds | $33.4B |
| LAM RESEARCH CORPLRCX | 47 funds | $12.5B |
| ORACLE CORPORCL | 47 funds | $9.2B |
| UBER TECHNOLOGIES INCUBER | 47 funds | $4.0B |
| BROADCOM INCAVGO | 46 funds | $73.3B |
| UNITEDHEALTH GROUP INCUNH | 46 funds | $14.4B |
| ADVANCED MICRO DEVICESAMD | 45 funds | $16.3B |
Ranked by how many of ABEO's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Sep 1, 2026 | Alvino Mark | Director | Sell (S) | 15K | $88K |
| Jul 21, 2026 | Vazzano Joseph Walter | Chief Financial Officer | Sell (S) | 1K | $10K |
| Jul 9, 2026 | Vasanthavada Madhav | Chief Commercial Officer | Sell (S) | 13K | $88K |
| Jul 9, 2026 | Vazzano Joseph Walter | Chief Financial Officer | Sell (S) | 25K | $173K |
| Jul 9, 2026 | Seshadri Vishwas | Chief Executive Officer, Director | Sell (S) | 68K | $473K |
| Jul 9, 2026 | O'Malley Brendan M. | SVP, Chief Legal Officer | Sell (S) | 12K | $84K |
| Jun 30, 2026 | Alland Leila | Director | Sell (S) | 11K | $65K |
| Jun 15, 2026 | Silverstein Christine Berni | Director | Sell (S) | 18K | $104K |
| Jun 9, 2026 | O'Malley Brendan M. | SVP, Chief Legal Officer | Sell (S) | 6K | $33K |
| Jun 9, 2026 | Vazzano Joseph Walter | Chief Financial Officer | Sell (S) | 13K | $71K |
| Jun 9, 2026 | Vazzano Joseph Walter | Chief Financial Officer | Sell (S) | 26K | $138K |
| Jun 9, 2026 | Vasanthavada Madhav | Chief Commercial Officer | Sell (S) | 5K | $29K |
Connected entities for ABEO
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/ABEO/capital-change-brief"
Use Arkolith's capital_change_brief for ABEO. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for ABEO. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.