Westchester Capital Management, LLC — 13F Holdings & Portfolio
CIK 1512805 · latest 13F-HR filed 2026-08-14
Westchester Capital Management, LLC manages $2.04B in 13F-reported U.S. long-equity assets across 878 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are EA (7.73%), NSC (7.40%), WBD (6.76%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 75 new positions and exited 72; 61 existing positions rose in reported value and 29 fell.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
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AUM
$2.04B
Long-equity book
Holdings
878
Distinct positions
Period
2026-06-30
Filed 2026-08-14
Q/Q Activity
+75 / −72 / ↑61 / ↓29
vs 2026-03-31
Portfolio charts
Latest quarter's book, what changed, and how the portfolio has evolved across filings.
Portfolio map
Q2 26EA8.5% · +14%NSC8.2% · +3%WBD7.7% · +9%GTLS6.4% · +24%WBS5.4% · -24%UNF3.8% · +11%DBRG2.9% · +26%PEN2.5% · +106%QRVO2.5% · +102%ROKU2.2% · newCZR2.1% · +532%ANSC1.2% · 0%KVUE1.0% · +209%OGN1.0% · newSEM0.8% · newCOR0.8% · newKFII0.8% · 0%AES0.7% · newGTERA0.7% · 0%GIW0.7% · 0%OYSE0.7% · 0%KCHV0.7% · 0%SOUL0.7% · 0%SDHI0.7% · 0%PACH0.6% · 0%JACS0.6% · 0%ALDF0.6% · 0%SZZL0.6% · -25%JHG0.6% · 0%POLE0.6% · 0%NPAC0.6% · 0%OBA0.6% · 0%AACB0.5% · 0%CRAQ0.5% · 0%LPBB0.5% · 0%APXT0.5% · 0%APGE0.5% · newNTWO0.5% · 0%JENA0.5% · 0%QLEP0.5% · newGSRF0.5% · 0%TACH0.5% · -35%COPL0.5% · 0%XRPN0.4% · 0%RDAG0.4% · 0%MLAA0.4% · newLWAC0.4% · 0%HAVA0.4% · +302%FACT0.4% · 0%MKLY0.4% · 0%TACO0.4% · 0%WPAC0.4% · +182%TRAD0.3% · newCCAQ0.3% · newWENN0.3% · 0%APTV0.3% · 0%B0.3% · +16%KOYN0.3% · 0%SOCA0.3% · 0%QSEA0.3% · +67%
Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.
Sector mix
% of 13F valueSectors from each company's SIC code; funds and ETFs grouped separately.
Biggest buys and sells
Q1 26 → Q2 26Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.
13F assets and positions
4 quartersTotal reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.
Top positions over time
reported valueThe eight largest current positions, valued at each quarter end.
Concentration
top 10 = 50.1%Cumulative share of the portfolio held in the largest N positions.
Firm Profile & Key People
As of the firm’s regulatory filing dated Mar 30, 2026.
Assets Under Management
$2.88B
Discretionary
$2.88B
Employees
10
Accounts
7
Address
100 SUMMIT LAKE DRIVE
VALHALLA, NY 10595-1339
VALHALLA, NY 10595-1339
Phone
(914) 741-5600
| Name | Title / Status | Ownership | Type |
|---|---|---|---|
| ANGERTHAL, MICHAEL, AARON Control | EXECUTIVE VICE PRESIDENT since Oct 2021 | Less than 5% | Individual |
| AYLWARD, GEORGE, ROBERT Control | CHIEF EXECUTIVE OFFICER since Oct 2021 | Less than 5% | Individual |
| BEHREN, ROY, DOUGLAS Control | CO-PRESIDENT AND CO-CHIEF INVESTMENT OFFICER since Oct 2021 | Less than 5% | Individual |
| COLOMB, CHRISTOPHER, J Control | CHIEF OPERATIONS OFFICER since Oct 2021 | Less than 5% | Individual |
| PURKALITIS, ANDRA, CYNTHIA Control | EXECUTIVE VICE PRESIDENT AND CHIEF LEGAL OFFICER since Nov 2023 | Less than 5% | Individual |
| SHANNON, MICHAEL, THOMAS Control | CO-PRESIDENT AND CO-CHIEF INVESTMENT OFFICER since Oct 2021 | Less than 5% | Individual |
| SMIRL, RICHARD, WILLIAM Control | EXECUTIVE VICE PRESIDENT since Oct 2021 | Less than 5% | Individual |
| VIRTUS PARTNERS, INC. Control | SOLE MEMBER since Oct 2021 | 75% or more | Domestic Entity |
| WU, CASAUNDRA, LEE Control | ASSISTANT MANAGING DIRECTOR AND CHIEF COMPLIANCE OFFICER since Oct 2021 | Less than 5% | Individual |
| VIRTUS INVESTMENT PARTNERS, INC. Control Indirect owner via VIRTUS PARTNERS, INC. | SOLE SHAREHOLDER since Oct 2021 | 75% or more | Domestic Entity |
Ownership & leadership changes · 8 filings with changes since Mar 16, 2012
From the firm’s regulatory filings, newest first. Dates are filing dates: a filing that no longer lists someone does not say when they left.
Dec 7, 2023 filing
- AddedPURKALITIS, ANDRA, CYNTHIA · EXECUTIVE VICE PRESIDENT AND CHIEF LEGAL OFFICER · Less than 5% · control person
Jun 20, 2023 filing
- No longer listedHILLS, WENDY, JACQUELINE · EXECUTIVE VICE PRESIDENT, GENERAL COUNSEL AND SECRETARY · Less than 5% · control person · listed since Oct 2021
Oct 15, 2021 filing
- No longer listedBEHREN, ROY, DOUGLAS · MANAGER · 75% or more · indirect via RDBWCM HOLDINGS, LLC · control person · listed since Sep 2010
- No longer listedLPC WESTCHESTER GP, LLC · GENERAL PARTNER · General partner, trustee or manager · indirect via LPC WESTCHESTER, LP · control person · listed since Sep 2010
- No longer listedLPC WESTCHESTER, LP · MEMBER · 10–25% · listed since Dec 2010
- No longer listedMTSWCM HOLDINGS, LLC · MEMBER · 25–50% · control person · listed since Dec 2010
- No longer listedRDBWCM HOLDINGS, LLC · MEMBER · 25–50% · control person · listed since Dec 2010
- No longer listedSHANNON, MICHAEL, THOMAS · MANAGER · 75% or more · indirect via MTSWCM HOLDINGS, LLC · control person · listed since Sep 2010
- AddedANGERTHAL, MICHAEL, AARON · EXECUTIVE VICE PRESIDENT · Less than 5% · control person
- AddedAYLWARD, GEORGE, ROBERT · CHIEF EXECUTIVE OFFICER · Less than 5% · control person
- AddedHILLS, WENDY, JACQUELINE · EXECUTIVE VICE PRESIDENT, GENERAL COUNSEL AND SECRETARY · Less than 5% · control person
- AddedSMIRL, RICHARD, WILLIAM · EXECUTIVE VICE PRESIDENT · Less than 5% · control person
- AddedVIRTUS INVESTMENT PARTNERS, INC. · SOLE SHAREHOLDER · 75% or more · indirect via VIRTUS PARTNERS, INC. · control person
- AddedVIRTUS PARTNERS, INC. · SOLE MEMBER · 75% or more · control person
- ChangedBEHREN, ROY, DOUGLAS · title ELECTED MANAGER, CO-PRESIDENT AND TREASURER → CO-PRESIDENT AND CO-CHIEF INVESTMENT OFFICER
- ChangedCOLOMB, CHRISTOPHER, J · title CHIEF FINANCIAL OFFICER → CHIEF OPERATIONS OFFICER
- ChangedSHANNON, MICHAEL, THOMAS · title ELECTED MANAGER AND CO-PRESIDENT → CO-PRESIDENT AND CO-CHIEF INVESTMENT OFFICER
- ChangedWU, CASAUNDRA, LEE · title CHIEF COMPLIANCE OFFICER → ASSISTANT MANAGING DIRECTOR AND CHIEF COMPLIANCE OFFICER
Aug 10, 2021 filing
- No longer listedRUBIN, BRUCE, JAY · CHIEF COMPLIANCE OFFICER AND CHIEF OPERATING OFFICER · Less than 5% · control person · listed since Sep 2010
- AddedCOLOMB, CHRISTOPHER, J · CHIEF FINANCIAL OFFICER · Less than 5% · control person
- AddedWU, CASAUNDRA, LEE · CHIEF COMPLIANCE OFFICER · Less than 5% · control person
Mar 29, 2019 filing
- ChangedLPC WESTCHESTER, LP · ownership Less than 5% → 10–25%
- ChangedMTSWCM HOLDINGS, LLC · ownership 50–75% → 25–50%
- ChangedRDBWCM HOLDINGS, LLC · ownership 50–75% → 25–50%
Mar 30, 2018 filing
- ChangedLPC WESTCHESTER GP, LLC · indirect via LPC WESTCHESTER, LP: now a control person
- ChangedMTSWCM HOLDINGS, LLC · ownership 25–50% → 50–75%
- ChangedRDBWCM HOLDINGS, LLC · ownership 25–50% → 50–75%
Mar 31, 2014 filing
- ChangedBEHREN, ROY, DOUGLAS · title ELECTED MANAGER → ELECTED MANAGER, CO-PRESIDENT AND TREASURER
- ChangedSHANNON, MICHAEL, THOMAS · title ELECTED MANAGER → ELECTED MANAGER AND CO-PRESIDENT
Apr 1, 2013 filing
- ChangedRUBIN, BRUCE, JAY · title CHIEF COMPLIANCE OFFICER → CHIEF COMPLIANCE OFFICER AND CHIEF OPERATING OFFICER
Mar 16, 2012 filing (earliest on record)
- ListedBEHREN, ROY, DOUGLAS · ELECTED MANAGER · Less than 5% · control person
- ListedBEHREN, ROY, DOUGLAS · MANAGER · 75% or more · indirect via RDBWCM HOLDINGS, LLC · control person
- ListedLPC WESTCHESTER GP, LLC · GENERAL PARTNER · General partner, trustee or manager · indirect via LPC WESTCHESTER, LP
- ListedLPC WESTCHESTER, LP · MEMBER · Less than 5%
- ListedMTSWCM HOLDINGS, LLC · MEMBER · 25–50% · control person
- ListedRDBWCM HOLDINGS, LLC · MEMBER · 25–50% · control person
- ListedRUBIN, BRUCE, JAY · CHIEF COMPLIANCE OFFICER · Less than 5% · control person
- ListedSHANNON, MICHAEL, THOMAS · ELECTED MANAGER · Less than 5% · control person
- ListedSHANNON, MICHAEL, THOMAS · MANAGER · 75% or more · indirect via MTSWCM HOLDINGS, LLC · control person
Quarter-over-quarter changes
Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.
Top Adds (vs prior quarter)
- CAESARS ENTERTAINMENT INC NE$35.8M +622.3%
- QORVO INC$29.2M +143.2%
- CHART INDS INC$25.6M +25.0%
- PENUMBRA INC$24.6M +97.6%
- ELECTRONIC ARTS INC$21.5M +14.6%
Top Trims
- WEBSTER FINL CORP-$20.4M -16.1%
- DRUGS MADE IN AMER ACQUTN CO-$11.3M -64.6%
- CHURCHILL CAPITAL CORP IX-$6.9M -78.3%
- LIBERTY BROADBAND CORP-$6.8M -81.4%
- LAKESHORE ACQUISITION III CO-$5.1M -71.7%
New Positions
- ROKU INC$43.4M
- ORGANON & CO$19.3M
- SELECT MED HLDGS CORP$16.2M
- TOPBUILD COR$15.9M
- AES CORP$14.9M
Exited Positions
- CLEARWATER ANALYTICS HLDGS I$61.9M
- COTERRA ENERGY INC$55.8M
- SEALED AIR CORP NEW$39.8M
- PROASSURANCE CORP$36.0M
- HOLOGIC INC$34.4M
Westchester Capital Management, LLC Holdings (2026-06-30)
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | ELECTRONIC ARTS INC | EA | 285512109 | $157.9M | 7.73% | 770,127 | SH |
| 2 | NORFOLK SOUTHN CORP | NSC | 655844108 | $151.2M | 7.40% | 480,474 | SH |
| 3 | WARNER BROS DISCOVERY INC | WBD | 934423104 | $138.2M | 6.76% | 5,183,365 | SH |
| 4 | CHART INDS INC | GTLS | 16115Q308 | $119.5M | 5.85% | 572,099 | SH |
| 5 | WEBSTER FINL CORP | WBS | 947890109 | $105.5M | 5.16% | 1,380,533 | SH |
| 6 | UNIFIRST CORP MASS | UNF | 904708104 | $67.2M | 3.29% | 254,110 | SH |
| 7 | DIGITALBRIDGE GROUP INC | DBRG | 25401T603 | $53.3M | 2.61% | 3,376,699 | SH |
| 8 | QORVO INC | QRVO | 74736K101 | $45.0M | 2.20% | 482,447 | SH |
| 9 | PENUMBRA INC | PEN | 70975L107 | $44.4M | 2.18% | 140,763 | SH |
| 10 | ROKU INC | ROKU | 77543R102 | $39.0M | 1.91% | 282,274 | SH |
| 11 | CAESARS ENTERTAINMENT INC NE | CZR | 12769G100 | $38.0M | 1.86% | 1,258,384 | SH |
| 12 | AGRICULTURE & NAT SOL ACQ CO | ANSC | G0131Y100 | $22.2M | 1.09% | 1,957,555 | SH |
| 13 | KENVUE INC | KVUE | 49177J102 | $17.8M | 0.87% | 931,136 | SH |
| 14 | ORGANON & CO | OGN | 68622V106 | $16.9M | 0.83% | 1,246,113 | SH |
| 15 | K&F GROWTH ACQUISITION CORP | KFII | G52258111 | $15.0M | 0.73% | 1,418,954 | SH |
| 16 | SELECT MED HLDGS CORP | SEM | 81619Q105 | $14.6M | 0.72% | 886,670 | SH |
| 17 | GLOBA TERRA ACQUISITION COR | GTERA | G3933N116 | $13.3M | 0.65% | 1,289,139 | SH |
| 18 | AES CORP | AES | 00130H105 | $13.2M | 0.64% | 898,117 | SH |
| 19 | TOPBUILD COR | BLD | 89055F103 | $12.6M | 0.62% | 29,636 | SH |
| 20 | KOCHAV DEFENSE ACQUI CO | KCHV | G5304D106 | $12.6M | 0.62% | 1,212,848 | SH |
| 21 | OYSTER ENTERPRISES II ACQUIS | OYSE | G6861F104 | $12.4M | 0.61% | 1,202,048 | SH |
| 22 | SOULPOWER ACQUISITION CORP | SOUL | G82745103 | $12.4M | 0.61% | 1,195,602 | SH |
| 23 | GIGCAPITAL8 CORP | GIW | G3864J100 | $12.1M | 0.59% | 1,207,061 | SH |
| 24 | WARNER BROS DISCOVERY INC | WBD | 934423104 | $12.0M | 0.59% | 450,028 | SH |
| 25 | JACKSON ACQUISITION CO II | JACS | G4992A110 | $11.9M | 0.58% | 1,117,827 | SH |
| 26 | PIONEER ACQUISITION I CORP | PACH | G7117W107 | $11.8M | 0.58% | 1,152,746 | SH |
| 27 | ALDEL FINL II INC | ALDF | G01558108 | $11.8M | 0.58% | 1,100,357 | SH |
| 28 | SIDDHI ACQUISITION CORP | SDHI | G8118C124 | $11.7M | 0.57% | 1,121,204 | SH |
| 29 | SIZZLE ACQUISITION CORP. II | SZZL | G8193F109 | $11.3M | 0.55% | 1,090,953 | SH |
| 30 | ANDRETTI ACQUISITION CORP II | POLE | G26745102 | $11.2M | 0.55% | 1,041,853 | SH |
| 31 | JANUS HENDERSON GROUP PLC | JHG | G4474Y214 | $10.7M | 0.53% | 206,645 | SH |
| 32 | NEW PROVIDENCE ACQUISITION C | NPAC | G6476A102 | $10.7M | 0.52% | 1,028,209 | SH |
| 33 | OXLEY BRIDGE ACQ LTD | OBA | G6858G107 | $10.5M | 0.51% | 1,021,569 | SH |
| 34 | ARTIUS II ACQUISITION INC | AACB | G0509J115 | $9.9M | 0.48% | 943,963 | SH |
| 35 | ELECTRONIC ARTS INC | EA | 285512109 | $9.7M | 0.48% | 47,442 | SH |
| 36 | LAUNCH TWO ACQUISITION CORP. | LPBB | G5S87A105 | $9.7M | 0.47% | 902,722 | SH |
| 37 | CAL REDWOOD ACQUISITION CORP | CRAQ | G17564108 | $9.3M | 0.46% | 907,714 | SH |
| 38 | NORFOLK SOUTHN CORP | NSC | 655844108 | $9.3M | 0.46% | 29,689 | SH |
| 39 | APEX TREAS CORP | APXT | G04104108 | $9.1M | 0.45% | 907,401 | SH |
| 40 | NEWBURY STR II ACQUISITION C | NTWO | G6439S109 | $8.7M | 0.43% | 819,213 | SH |
| 41 | JENA ACQUISITION CORP II | JENA | G5093B105 | $8.6M | 0.42% | 828,163 | SH |
| 42 | QUANTUM LEAP ACQUISITION COR | QLEP | G73167101 | $8.5M | 0.42% | 859,341 | SH |
| 43 | TOPBUILD COR Put | BLD | 89055F103 | $8.5M | 0.42% | 20,000 | SH |
| 44 | TITAN ACQUISITION CORP | TACH | G8901A103 | $8.4M | 0.41% | 809,854 | SH |
| 45 | COPLEY ACQUISITION CORP | COPL | G24243100 | $8.4M | 0.41% | 807,521 | SH |
| 46 | GSR IV ACQUISITION CORP | GSRF | G4R12K107 | $8.4M | 0.41% | 827,786 | SH |
| 47 | APOGEE THERAPEUTICS INC | APGE | 03770N101 | $8.3M | 0.40% | 62,182 | SH |
| 48 | ARMADA ACQUISITION CORP II | XRPN | G0R38G104 | $7.9M | 0.39% | 760,910 | SH |
| 49 | UNIFIRST CORP MASS | UNF | 904708104 | $7.9M | 0.39% | 29,933 | SH |
| 50 | REPUBLIC DIGITAL ACQUISITION | RDAG | G7515A103 | $7.7M | 0.38% | 749,072 | SH |
Filing History
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $2.04B | 878 | 0001512805-26-000008 |
| 2026-03-31 | 2026-05-15 | $2.21B | 863 | 0001512805-26-000005 |
| 2025-12-31 | 2026-02-13 | $2.38B | 778 | 0001512805-26-000002 |
| 2025-09-30 | 2025-11-14 | $2.19B | 678 | 0001628280-25-052144 |
Filer Information
Address
100 SUMMIT LAKE DRIVEVALHALLA, NY 10595
Phone
(914) 741-5600
Filing Manager
Westchester Capital Management, LLC
VALHALLA, NY
Signatory
CaSaundra Wu
Chief Compliance Officer