73 tracked 13F filers disclose a position in IMRX as of the latest SEC 13F filings, a combined $134.4M 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 | FMR LLC | $51.1M | 9.7M | ▲+0.1% Added · +12K sh | Q1 2026 | |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | $12.1M | 2.3M | →First observed position No prior filed position | Q1 2026 | |
| 3 | MARSHALL WACE, LLP | $10.5M | 2.0M | ▲+180% Added · +1.3M sh | Q1 2026 | |
| 4 | PRICE T ROWE ASSOCIATES INC /MD/ | $9.6M | 1.8M | ▼−8.3% Reduced · −165K sh | Q1 2026 | |
| 5 | BlackRock, Inc. | $7.9M | 1.5M | ▲+3.8% Added · +56K sh | Q1 2026 | |
| 6 | MILLENNIUM MANAGEMENT LLC | $5.8M | 1.1M | ▲22× Added · +1.1M sh | Q1 2026 | |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | $3.4M | 638K | ▲+3.2% Added · +20K sh | Q1 2026 | |
| 8 | Occam Crest Management LP | $2.9M | 545K | ▲+9.3% Added · +47K sh | Q1 2026 | |
| 9 | CITADEL ADVISORS LLC | $2.4M | 447K | ▲+394% Added · +357K sh | Q1 2026 | |
| 10 | Connor, Clark & Lunn Investment Management Ltd. | $2.1M | 400K | ▲+202% Added · +268K sh | Q1 2026 | |
| 11 | Summit Financial, LLC | $2.0M | 377K | ▲New +377K sh | Q1 2026 | |
| 12 | UBS Group AG | $2.0M | 376K | ▲+98% Added · +186K sh | Q1 2026 | |
| 13 | GOLDMAN SACHS GROUP INC | $1.7M | 328K | ▲+2.8% Added · +9K sh | Q1 2026 | |
| 14 | VANGUARD FIDUCIARY TRUST CO | $1.7M | 322K | →First observed position No prior filed position | Q1 2026 | |
| 15 | MORGAN STANLEY | $1.6M | 296K | ▼−40% Reduced · −194K sh | Q1 2026 | |
| 16 | STATE STREET CORP | $1.4M | 269K | ▼−89% Reduced · −2.1M sh | Q1 2026 | |
| 17 | TWO SIGMA INVESTMENTS, LP | $1.3M | 245K | ▲+18% Added · +38K sh | Q1 2026 | |
| 18 | Squarepoint Ops LLC | $1.2M | 226K | ▲+145% Added · +134K sh | Q1 2026 | |
| 19 | Diametric Capital, LP | $922K | 175K | ▼−29% Reduced · −72K sh | Q1 2026 | |
| 20 | BANK OF AMERICA CORP /DE/ | $795K | 151K | ▼−30% Reduced · −63K sh | Q1 2026 | |
| 21 | 683 Capital Management, LLC | $794K | 151K | —Held | Q1 2026 | |
| 22 | PVG ASSET MANAGEMENT CORP | $731K | 146K | ▼−0.1% Reduced · −210 sh | Q2 2026 | |
| 23 | HighTower Advisors, LLC | $692K | 131K | ▲+18% Added · +20K sh | Q1 2026 | |
| 24 | Prosight Management, LP | $650K | 123K | ▲New +123K sh | Q1 2026 | |
| 25 | Kingsview Wealth Management, LLC | $644K | 122K | ▲+3.0% Added · +4K 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, 10 funds opened a new position in IMRX and 13 added to an existing one, while 7 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 |
|---|---|---|
| ELI LILLY & COLLY | 27 funds | $1.3B |
| AMAZON.COM INCAMZN | 26 funds | $6.2B |
| JPMORGAN CHASE & COJPM | 26 funds | $2.6B |
| APPLIED MATERIALS INCAMAT | 26 funds | $2.1B |
| PALANTIR TECHNOLOGIES INC-APLTR | 26 funds | $1.5B |
| UNITEDHEALTH GROUP INCUNH | 26 funds | $1.3B |
| CHEVRON CORPCVX | 26 funds | $1.0B |
| NVIDIA CORPNVDA | 25 funds | $13.4B |
| APPLE INCAAPL | 25 funds | $8.0B |
| MICROSOFT CORPMSFT | 25 funds | $7.6B |
| BROADCOM INCAVGO | 25 funds | $4.8B |
| MICRON TECHNOLOGY INCMU | 25 funds | $3.8B |
Ranked by how many of IMRX's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jun 23, 2026 | Zeskind Benjamin J. | PRESIDENT AND CEO, Director | Buy (P) | 2K | $11K |
| Jun 15, 2026 | Hall Brett Matthew | CHIEF SCIENTIFIC OFFICER | Buy (P) | 6K | $25K |
| Jan 16, 2026 | Brakewood Harold Eugene | Chief Business Officer | Buy (P) | 5K | $25K |
| Jan 15, 2026 | Hall Brett Matthew | CHIEF SCIENTIFIC OFFICER | Buy (P) | 2K | $11K |
| Jan 15, 2026 | Schall Thomas J. | Director | Buy (P) | 22K | $101K |
| Jan 13, 2026 | Neufeld Leah R | CHIEF PEOPLE OFFICER | Buy (P) | 3K | $11K |
| Jan 12, 2026 | Feinberg Peter | Director | Buy (P) | 20K | $87K |
| Oct 3, 2025 | Feinberg Peter | Director | Buy (P) | 8K | $50K |
| Oct 1, 2025 | Bookman Michael | CHIEF LEGAL OFFICER, SECRETARY | Buy (P) | 1K | $7K |
| Oct 1, 2025 | Neufeld Leah R | CHIEF PEOPLE OFFICER | Buy (P) | 800 | $5K |
| Oct 1, 2025 | Morales Mallory | Chief Accounting Officer | Buy (P) | 300 | $2K |
| Sep 30, 2025 | Feinberg Peter | Director | Buy (P) | 8K | $53K |
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/IMRX/capital-change-brief"
Use Arkolith's capital_change_brief for IMRX. 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 IMRX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.