39 tracked 13F filers disclose a position in HOWL as of the latest SEC 13F filings, a combined $10.5M 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 | RA CAPITAL MANAGEMENT, L.P. | $5.6M | 6.7M | —Held | Q1 2026 | |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | $1.0M | 1.2M | →First observed position No prior filed position | Q1 2026 | |
| 3 | MPM BioImpact LLC | $1.0M | 1.2M | ▼−13% Reduced · −185K sh | Q1 2026 | |
| 4 | SPHERA FUNDS MANAGEMENT LTD. | $522K | 627K | —Held | Q1 2026 | |
| 5 | Squadron Capital Management LLC | $469K | 564K | ▲New +564K sh | Q1 2026 | |
| 6 | RENAISSANCE TECHNOLOGIES LLC | $430K | 516K | ▼−24% Reduced · −162K sh | Q1 2026 | |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | $324K | 389K | ▲+16% Added · +54K sh | Q1 2026 | |
| 8 | BANK OF AMERICA CORP /DE/ | $220K | 265K | ▼−64% Reduced · −473K sh | Q1 2026 | |
| 9 | VANGUARD FIDUCIARY TRUST CO | $131K | 158K | →First observed position No prior filed position | Q1 2026 | |
| 10 | MILLENNIUM MANAGEMENT LLC | $110K | 132K | ▼−45% Reduced · −108K sh | Q1 2026 | |
| 11 | STATE STREET CORP | $99K | 119K | —Held | Q1 2026 | |
| 12 | BlackRock, Inc. | $85K | 102K | ▼~0% Reduced · −35 sh | Q1 2026 | |
| 13 | NORTHERN TRUST CORP | $72K | 87K | —Held | Q1 2026 | |
| 14 | Alyeska Investment Group, L.P. | $72K | 87K | ▼−63% Reduced · −149K sh | Q1 2026 | |
| 15 | JANE STREET GROUP, LLC | $69K | 83K | ▼−47% Reduced · −74K sh | Q1 2026 | |
| 16 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $64K | 77K | —Held | Q1 2026 | |
| 17 | UBS Group AG | $56K | 67K | ▲+10% Added · +6K sh | Q1 2026 | |
| 18 | XTX Topco Ltd | $42K | 51K | ▲New +51K sh | Q1 2026 | |
| 19 | GOLDMAN SACHS GROUP INC | $32K | 38K | ▲+12% Added · +4K sh | Q1 2026 | |
| 20 | MORGAN STANLEY | $28K | 34K | ▼−27% Reduced · −12K sh | Q1 2026 | |
| 21 | SIMPLEX TRADING, LLC | $27K | 33K | ▲+35% Added · +8K sh | Q1 2026 | |
| 22 | RAYMOND JAMES FINANCIAL INC | $16K | 20K | ▲New +20K sh | Q1 2026 | |
| 23 | BARCLAYS PLC | $11K | 13K | ▼~0% Reduced · −1 sh | Q1 2026 | |
| 24 | HBK Sorce Advisory LLC | $9K | 13K | —Held | Q1 2026 | |
| 25 | Larson Financial Group LLC | $11K | 13K | —Held | 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, 3 funds opened a new position in HOWL and 1 added to an existing one, while 5 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 |
|---|---|---|
| AMAZON.COM INCAMZN | 14 funds | $5.1B |
| MICROSOFT CORPMSFT | 14 funds | $3.6B |
| META PLATFORMS INC-CLASS AMETA | 14 funds | $3.0B |
| BROADCOM INCAVGO | 14 funds | $2.8B |
| ALPHABET INC-CL AGOOGL | 14 funds | $2.5B |
| COCA-COLA CO/THEKO | 14 funds | $1.4B |
| HOME DEPOT INCHD | 14 funds | $1.4B |
| MASTERCARD INC - AMA | 14 funds | $1.3B |
| ARISTA NETWORKS INCANET | 14 funds | $967.8M |
| ADVANCED MICRO DEVICESAMD | 14 funds | $929.6M |
| CHEVRON CORPCVX | 14 funds | $816.0M |
| ELI LILLY & COLLY | 14 funds | $736.5M |
Ranked by how many of HOWL's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jul 7, 2026 | EVNIN LUKE | Director | Sell (S) | 107K | $33K |
| Jul 6, 2026 | EVNIN LUKE | Director | Sell (S) | 36K | $11K |
| Jun 29, 2026 | EVNIN LUKE | Director | Sell (S) | 157K | $47K |
| Jun 17, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | Sell (S) | 389K | $136K |
| Jun 17, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | Sell (S) | 28K | $10K |
| Jun 16, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | Sell (S) | 140K | $52K |
| Jun 16, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | Sell (S) | 10K | $4K |
| Jun 15, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | Sell (S) | 120K | $47K |
| Jun 15, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | Sell (S) | 9K | $3K |
| Jun 12, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | Sell (S) | 159K | $64K |
| Jun 12, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | Sell (S) | 11K | $5K |
| Jun 11, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | Sell (S) | 245K | $93K |
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/HOWL/capital-change-brief"
Use Arkolith's capital_change_brief for HOWL. 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 HOWL. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.