Westchester Capital Management, LLC
CIK 1512805 · Holdings on Sep 30, 2025 · First reported Nov 14, 2025
Top ten holdings
Q3 2025- 62482R1078.04%
- KEL7.23%
- CYBR6.96%
- 16115Q3085.70%
- TECK4.24%
- FYBR4.05%
- IPG3.30%
- VRNA2.68%
- 5303071072.48%
- PRA2.19%
Share classes counted separately46.87%
Portfolio value by quarter
What changed this quarter?
Within preview · weight change- 62482R107Weight increased · +3.69 pp4.35% → 8.04%Shares +237.78K (+47.71%)
- 530307107Weight decreased · -1.77 pp4.25% → 2.48%Shares +13.70K (+1.84%)
- SZZLWeight increased · +0.72 pp0.10% → 0.82%Shares +1.39M (+794.13%)
Weight = security value ÷ total reported holdings value. Changes are in percentage points; price moves also affect weights, so they are not trade sizes.
Top 10 holdings 25
USD · B = billion · M = million; expand a row for exact values| # | Security | Value | Weight | Quantity | Weight / quantity change | Activity | |
|---|---|---|---|---|---|---|---|
| 01 | 62482R107MR COOPER GROUP INC View history and evidence | $155.18M | 8.04% | 736.21K shares | 4.35% → 8.04%+3.69 pp +237.78K (+47.71%) | Added | ↗▾ |
| 02 | KELKELLANOVA View history and evidence | $139.53M | 7.23% | 1.70M shares | 7.91% → 7.23%-0.68 pp 0 (0.00%) | Unchanged | ↗▾ |
| 03 | CYBRCYBERARK SOFTWARE LTD/ISRAELSHS View history and evidence | $134.32M | 6.96% | 278.01K shares | Prior unavailable +278.01K | New | ↗▾ |
| 04 | 16115Q308CHART INDS INC View history and evidence | $109.95M | 5.70% | 549.33K shares | Prior unavailable +549.33K | New | ↗▾ |
| 05 | TECKTECK RESOURCES LTD-CLS BCL B View history and evidence | $81.79M | 4.24% | 1.86M shares | Prior unavailable +1.86M | New | ↗▾ |
| 06 | FYBRFRONTIER COMMUNICATIONS PARE View history and evidence | $78.20M | 4.05% | 2.09M shares | 4.74% → 4.05%-0.69 pp -136.33K (-6.11%) | Reduced | ↗▾ |
| 07 | IPGINTERPUBLIC GROUP OF COS INC View history and evidence | $63.71M | 3.30% | 2.28M shares | 3.02% → 3.30%+0.28 pp +169.68K (+8.03%) | Added | ↗▾ |
| 08 | VRNAVERONA PHARMA PLC - ADRSPONSORED ADS View history and evidence | $51.61M | 2.68% | 483.65K shares | Prior unavailable +483.65K | New | ↗▾ |
| 09 | 530307107LIBERTY BROADBAND CORPCOM SER A View history and evidence | $47.91M | 2.48% | 756.52K shares | 4.25% → 2.48%-1.77 pp +13.70K (+1.84%) | Added | ↗▾ |
| 10 | PRAPROASSURANCE CORP View history and evidence | $42.25M | 2.19% | 1.76M shares | 2.38% → 2.19%-0.19 pp -25.13K (-1.41%) | Reduced | ↗▾ |
Options overlay 12
$257.04M notionalPut and Call positions are separate. Notional is based on underlying securities, not option premium, market value or net exposure. Quantities are underlying shares.
| Security | Put / Call | Underlying shares | Notional | Quantity change | |
|---|---|---|---|---|---|
SPYSS SPDR S&P 500 ETF TRUST-USTR UNIT View history and evidence | Put | 200.00K | $133.24M | -50.00K (-20.00%) | ▾ |
TECKTECK RESOURCES LTD-CLS BCL B View history and evidence | Put | 1.65M | $72.62M | +1.65M | ▾ |
HONHONEYWELL INTERNATIONAL INC View history and evidence | Put | 47.10K | $9.91M | +13.20K (+38.94%) | ▾ |
3 / 12 options · preview only
Exited positions 47
| Security | Type | Shares out | Value out | Previous filing | This filing |
|---|---|---|---|---|---|
| HES HESS CORP | Non-derivative | -1,553,196 | -$215.18M | SEC filing ↗ | SEC filing ↗ |
| 15872M104 CHAMPIONX CORP | Non-derivative | -3,857,598 | -$95.82M | SEC filing ↗ | SEC filing ↗ |
| AZEK AZEK CO INC/THE | Non-derivative | -1,304,619 | -$70.91M | SEC filing ↗ | SEC filing ↗ |
3 / 47 preview exits. Up to 30 exit records are previewed. Exit means absent from the current filing; execution date, price and proceeds are unknown.
Every number has a source.
CIK 1512805 · Period 2025-09-30
Data loaded 2026-09-23 · First reported 2025-11-14
Amendments and versions
{
"amendments_merged": null,
"prior_versions": null,
"cover_table_value": 2186288652
}Research all 258 reported holdings.
This page includes 30 of 258 reported holdings. Sign in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
＋ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#portfolio-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 30 of 258 current positions (options included); totals and weights use the complete filing.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP.
MCP https://api.akkrudata.ai/mcp
get_institutional_portfolio
{"cik":"1512805","quarter":"2025Q3","page_size":100}
get_institutional_manager_history
{"cik":"1512805","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.