738 tracked 13F filers disclose a position in WST as of the latest SEC 13F filings, a combined $17.7B 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 | BlackRock, Inc. | $1.7B | 6.8M | ▲+3.6% Added · +237K sh | Q1 2026 | |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | $1.2B | 4.7M | →First observed position No prior filed position | Q1 2026 | |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | $1.0B | 4.1M | →First observed position No prior filed position | Q1 2026 | |
| 4 | STATE STREET CORP | $1.2B | 3.3M | ▲+1.7% Added · +55K sh | Q2 2026 | |
| 5 | Artisan Partners Limited Partnership | $666.2M | 2.7M | ▼−6.8% Reduced · −193K sh | Q1 2026 | |
| 6 | Bank of New York Mellon Corp | $618.0M | 2.5M | ▼−7.4% Reduced · −196K sh | Q1 2026 | |
| 7 | T. Rowe Price Investment Management, Inc. | Withheld | 2.3M | ▲+99% Added · +1.2M sh | Q1 2026 | |
| 8 | GENERATION INVESTMENT MANAGEMENT LLP | $728.2M | 2.0M | ▼−9.6% Reduced · −216K sh | Q2 2026 | |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | $680.6M | 1.9M | ▼−0.5% Reduced · −9K sh | Q2 2026 | |
| 10 | MORGAN STANLEY | $365.5M | 1.5M | ▼−4.8% Reduced · −74K sh | Q1 2026 | |
| 11 | BROWN ADVISORY INC | $336.1M | 1.3M | ▼−31% Reduced · −603K sh | Q1 2026 | |
| 12 | Longview Partners (Guernsey) LTD | $329.7M | 1.3M | ▲+16% Added · +184K sh | Q1 2026 | |
| 13 | FMR LLC | $313.2M | 1.2M | ▲11× Added · +1.1M sh | Q1 2026 | |
| 14 | JPMORGAN CHASE & CO | $255.8M | 1.0M | ▲+279% Added · +768K sh | Q1 2026 | |
| 15 | NORGES BANK | $272.0M | 989K | ▲+7.7% Added · +71K sh | Q4 2025 | |
| 16 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME | $226.3M | 903K | ▼−0.3% Reduced · −3K sh | Q1 2026 | |
| 17 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | $215.1M | 858K | ▼−10% Reduced · −97K sh | Q1 2026 | |
| 18 | TD ASSET MANAGEMENT INC | $192.7M | 769K | ▲+27% Added · +163K sh | Q1 2026 | |
| 19 | NORTHERN TRUST CORP | $183.3M | 731K | ▲+0.7% Added · +5K sh | Q1 2026 | |
| 20 | GOLDMAN SACHS GROUP INC | $182.4M | 728K | ▲+65% Added · +288K sh | Q1 2026 | |
| 21 | VAN ECK ASSOCIATES CORP | Withheld | 714K | ▼−0.3% Reduced · −3K sh | Q1 2026 | |
| 22 | JACOBS LEVY EQUITY MANAGEMENT, INC | $176.8M | 705K | ▲+10% Added · +66K sh | Q1 2026 | |
| 23 | ProShare Advisors LLC | $165.4M | 660K | ▲+12% Added · +73K sh | Q1 2026 | |
| 24 | Amundi | $161.4M | 644K | ▲+85% Added · +297K sh | Q1 2026 | |
| 25 | Findlay Park Partners LLP | $154.6M | 617K | ▼−7.5% Reduced · −50K 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, 1 fund opened a new position in WST and 31 added to an existing one, while 24 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 |
|---|---|---|
| MICROSOFT CORPMSFT | 446 funds | $324.2B |
| AMAZON.COM INCAMZN | 440 funds | $239.6B |
| ALPHABET INC-CL AGOOGL | 439 funds | $213.3B |
| APPLE INCAAPL | 435 funds | $363.6B |
| NVIDIA CORPNVDA | 431 funds | $462.7B |
| META PLATFORMS INC-CLASS AMETA | 427 funds | $133.2B |
| ELI LILLY & COLLY | 424 funds | $93.9B |
| BROADCOM INCAVGO | 420 funds | $186.8B |
| VISA INC-CLASS A SHARESV | 417 funds | $77.5B |
| ALPHABET INC-CL CGOOG | 415 funds | $145.8B |
| JPMORGAN CHASE & COJPM | 412 funds | $82.2B |
| MASTERCARD INC - AMA | 410 funds | $65.5B |
Ranked by how many of WST's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Apr 27, 2026 | Favorite Annette F | Sr. VP & Chief HR Officer | Sell (S) | 3K | $860K |
| Apr 27, 2026 | Winters Chad | VP, Chief Accounting Officer | Sell (S) | 896 | $269K |
| Oct 29, 2024 | Witherspoon Charles | VP & Treasurer | Sell (S) | 225 | $70K |
| Oct 29, 2024 | Witherspoon Charles | VP & Treasurer | Sell (S) | 478 | $148K |
| Aug 19, 2024 | Witherspoon Charles | VP & Treasurer | Sell (S) | 500 | $150K |
| Aug 19, 2024 | Witherspoon Charles | VP & Treasurer | Sell (S) | 529 | $159K |
| Aug 6, 2024 | Green Eric Mark | President, CEO and Board Chair, Director | Sell (S) | 31K | $9.4M |
| Jun 12, 2024 | Abraham Silji | SVP, Chief Technology Officer | Sell (S) | 2K | $595K |
| May 10, 2024 | Hofmann Thomas W | Director | Sell (S) | 617 | $226K |
| May 7, 2024 | Green Eric Mark | President, CEO and Board Chair, Director | Sell (S) | 9K | $3.4M |
| May 7, 2024 | Green Eric Mark | President, CEO and Board Chair, Director | Sell (S) | 16K | $5.8M |
| May 7, 2024 | Green Eric Mark | President, CEO and Board Chair, Director | Sell (S) | 41K | $15.0M |
Connected entities for WST
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/WST/capital-change-brief"
Use Arkolith's capital_change_brief for WST. 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 WST. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.