WPG PARTNERS OPPORTUNISTIC VALUE FUND SEC REVIEW 2026
INDEPENDENT VERDICT
WPG Partners Opportunistic Value Fund, L.P. is not a newly created private fund. Its latest SEC Form D/A, filed September 18, 2026, reports a first sale dating all the way back to December 31, 1999, making this one of the longest-running private investment vehicles in the current FilingDossier batch. The Delaware limited partnership files under CIK 0001107541, operates from One Beacon Street, 30th Floor, Boston, Massachusetts, and currently reports an indefinite Rule 506(b) offering with $86,729,500 cumulatively sold to 113 investors. The fund is classified as both a pooled investment fund and hedge fund, relies on Section 3(c)(1) of the Investment Company Act, and reports no fixed Form D minimum investment. Its 2026 filing explicitly identifies WPG Opportunistic Value Manager Fund, L.L.C. as General Partner and Boston Partners Global Investors, Inc. as sole member of that General Partner, promoter and investment manager doing business as both Boston Partners and WPG Partners. That legal chain is unusually clear and means the fund can be tied directly to the much larger Boston Partners investment platform rather than inferred from a marketing-name similarity.
The naming history adds an important second layer of verification. SEC records preserve multiple previous names, including WPG Opportunistic Value Fund LP, Robeco WPG Opportunistic Value Fund LP and Robeco WPG Opportunistic Value Fund, L.P. Earlier filings from 2010 show the fund operating from 909 Third Avenue in New York with Robeco Investment Management, Inc. identified in the management chain, while the current structure has migrated to Boston Partners at One Beacon Street. This continuity matters because a researcher looking only for the current "WPG Partners" name would miss a substantial portion of the fund's regulatory history. In August 2010, the Robeco WPG version reported $65,974,651 sold to 82 investors; the September 2023 amendment reported $84,219,266 sold to 109 investors; and the September 2026 amendment now reports $86,729,500 sold to 113 investors. These figures show a remarkably persistent offering across more than two decades, but they should not be added together. Each amendment updates a continuing cumulative offering, so the latest $86.73 million figure is the relevant current cumulative Form D sales disclosure, not $65.97 million plus $84.22 million plus $86.73 million.
The manager context is much larger than the fund itself. Boston Partners states that, as of June 30, 2026, it manages approximately $149.6 billion across U.S. equity, global and non-U.S. equity, and long/short equity strategies, including approximately $2.4 billion specifically in long/short equity. The firm says it was founded in 1995 and applies one core investment philosophy across strategies: attractive valuation, strong business fundamentals and positive business momentum. WPG Partners operates as a specialist division within that broader platform. Its current public lineup focuses on smaller-company strategies and reports approximately $820 million in Small Cap Diversified, $379 million in Micro Cap Opportunities and $2.2 billion in Select Small Cap Value as of June 30, 2026. WPG also states that its investment process combines quantitative screening, industry contacts and intensive fundamental research, including more than 700 company meetings annually. Those strategy-level AUM numbers help verify WPG's operating depth, but they should not be treated as assets of the Opportunistic Value Fund.
The fund's most interesting feature is therefore its age and legal continuity rather than a headline capital raise. A 1999 first-sale date means investors are looking at a vehicle that has persisted through the dot-com collapse, the global financial crisis, the European debt crisis, the COVID shock, the 2022 rate-reset environment and multiple ownership and branding changes at the manager level. That history materially reduces basic identity risk, but it also raises investment questions that Form D cannot answer. Public filings do not disclose the current portfolio, gross or net exposure, small-cap concentration, short exposure, turnover, leverage, liquidity profile, annualized return, maximum drawdown, management fee, incentive allocation, high-water mark or redemption schedule. The current Boston Partners website explains WPG's public small-cap and long/short capabilities, but it does not publish enough fund-specific information to prove that the private Opportunistic Value Fund exactly mirrors any one current public strategy. Investors should therefore use the public WPG strategy framework as manager context, not as a substitute for the fund's current PPM and audited statements.
The final diligence question is performance and portfolio construction rather than whether the fund exists. The SEC history strongly verifies the legal vehicle, the 1999 inception, the succession from Robeco WPG to Boston Partners, the current General Partner, the investment manager and the long-running investor base. The approximately $86.73 million sold figure also establishes meaningful historical subscription activity, although it does not establish present NAV because investors may have redeemed and portfolio values may have changed substantially over more than 26 years. For a value-oriented hedge fund, investors should focus on gross long and short exposure, factor concentrations, small-cap liquidity, borrow costs, crowding, short squeezes, portfolio turnover, current holdings, realized versus unrealized gains, historical drawdowns and fees. A highly established manager and a decades-old filing history materially strengthen institutional verification, but they do not eliminate strategy risk or establish that current investors are earning attractive returns.
SEC SNAPSHOT
SEC FILE NUMBER: 021-128688 LATEST FORM D/A: September 18, 2026 FUND CLASSIFICATION: Hedge Fund SECURITY TYPE: Pooled Investment Fund Interests FEDERAL EXEMPTION: Rule 506(b) OFFERING DURATION: More than one year LATEST TOTAL AMOUNT SOLD: $86,729,500 LATEST REPORTED INVESTORS: 113 SEC-REPORTED MINIMUM INVESTMENT: $0 NON-ACCREDITED INVESTORS REPORTED: None indicated ESTIMATED SALES COMMISSIONS: $278,708 ESTIMATED FINDERS' FEES: $0 USE OF PROCEEDS TO RELATED PERSONS: $0 CURRENT NAV: Declined to disclose in Form D FORM D SIGNER: William G. Butterly III SIGNER TITLE: General Counsel
MANAGEMENT STRUCTURE
SOLE MEMBER OF GENERAL PARTNER: Boston Partners Global Investors, Inc. INVESTMENT MANAGER: Boston Partners Global Investors, Inc. DBA: Boston Partners ADDITIONAL DBA / DIVISION: WPG Partners PROMOTER: Boston Partners Global Investors, Inc. RELATED PERSON: Joseph Feeney RELATED PERSON: Mark Stephen Kuzminskas RELATED PERSON: Greg A. Varner SALES COMPENSATION RECIPIENT: Boston Partners Securities, L.L.C. BOSTON PARTNERS SECURITIES CRD: 2998 ADDRESS MATCH BETWEEN FUND / GP / MANAGER / DISTRIBUTOR: CONFIRMED
NAME HISTORY
CURRENT NAME: WPG Partners Opportunistic Value Fund, L.P. FORMER NAME: Robeco WPG Opportunistic Value Fund, L.P. FORMER NAME: ROBECO WPG OPPORTUNISTIC VALUE FUND LP FORMER NAME: WPG OPPORTUNISTIC VALUE FUND LP FORMER NAME: Robeco WPG Opportunistic Value Fund LP EARLY OPERATING ADDRESS: 909 Third Avenue, 32nd Floor, New York, NY 10022 CURRENT OPERATING ADDRESS: One Beacon Street, 30th Floor, Boston, MA 02108 EARLIER MANAGER / RELATED ENTITY: Robeco Investment Management, Inc. CURRENT MANAGER: Boston Partners Global Investors, Inc. SIGNIFICANCE: Regulatory continuity extends across Robeco and Boston Partners ownership / branding periods
HISTORICAL FORM D EVIDENCE
1999 FIRST SALE: December 31, 1999 2010 REPORTED AMOUNT SOLD: $65,974,651 2010 REPORTED INVESTORS: 82 2023 REPORTED AMOUNT SOLD: $84,219,266 2023 REPORTED INVESTORS: 109 2026 REPORTED AMOUNT SOLD: $86,729,500 2026 REPORTED INVESTORS: 113 2010 ESTIMATED SALES COMMISSIONS: $271,671 2023 ESTIMATED SALES COMMISSIONS: $278,709 2026 ESTIMATED SALES COMMISSIONS: $278,708 FORM D OFFERING TYPE THROUGH PERIOD REVIEWED: Indefinite ongoing offering IMPORTANT: Historical amendments contain cumulative amounts and must not be added together
CAPITAL INTERPRETATION
$86.7295M: Latest cumulative securities sold under the continuing Regulation D offering $86.7295M IS NOT: Current NAV $86.7295M IS NOT: Current investor equity $86.7295M IS NOT: Current WPG strategy AUM $86.7295M IS NOT: Boston Partners AUM $149.6B: Boston Partners firmwide AUM as of June 30, 2026 $149.6B IS NOT: WPG Opportunistic Value Fund size $2.4B: Boston Partners firmwide long/short equity AUM as of June 30, 2026 $2.4B IS NOT: Fund NAV REDEMPTIONS: Not reflected by cumulative subscriptions INVESTMENT GAINS / LOSSES: Not captured by Form D amount sold CURRENT FAIR VALUE: Requires current audited financial statements or investor reporting
BOSTON PARTNERS PLATFORM
MANAGER: Boston Partners FOUNDED: 1995 TOTAL AUM: $149.6 billion as of June 30, 2026 U.S. EQUITY AUM: $112.4 billion GLOBAL / NON-U.S. EQUITY AUM: $29.5 billion LONG/SHORT EQUITY AUM: $2.4 billion EMPLOYEES: 190 HEADQUARTERS: Boston GLOBAL OFFICE COUNT: Five total offices according to current company materials CORE INVESTMENT PHILOSOPHY: Value CORE SECURITY CHARACTERISTIC 1: Attractive valuation CORE SECURITY CHARACTERISTIC 2: Strong business fundamentals CORE SECURITY CHARACTERISTIC 3: Positive business momentum SELL DISCIPLINE: Valuation target; weakening fundamentals; reversal of momentum IMPORTANT: Boston Partners platform figures are manager-level statistics only
WPG PARTNERS PLATFORM
DIVISION: WPG Partners PARENT INVESTMENT MANAGER: Boston Partners Global Investors, Inc. CORE SPECIALIZATION: Small-cap and micro-cap equity investing CURRENT PUBLIC OFFERINGS: Small Cap Diversified; Micro Cap Opportunities; Select Small Cap Value; concentrated and long/short-related offerings SMALL CAP DIVERSIFIED AUM: Approximately $820 million as of June 30, 2026 MICRO CAP OPPORTUNITIES AUM: Approximately $379 million SELECT SMALL CAP VALUE AUM: Approximately $2.2 billion SMALL CAP DIVERSIFIED INCEPTION: October 1, 1999 MICRO CAP OPPORTUNITIES INCEPTION: October 1, 2008 SELECT SMALL CAP VALUE INCEPTION: December 1, 2018 PUBLIC RESEARCH PROCESS: Quantitative screens; industry contacts; original fundamental research COMPANY MEETINGS: More than 700 annually according to WPG PORTFOLIO MANAGER: Eric Gandhi, CFA PORTFOLIO MANAGER: Gregory Weiss ASSISTANT PORTFOLIO MANAGER: Robert Hellauer SENIOR ADVISOR: Richard Shuster, CFA IMPORTANT: WPG public strategy AUM and portfolio descriptions do not establish the private fund's present portfolio
CURRENT WPG PUBLIC STRATEGY DETAIL
SMALL CAP DIVERSIFIED HOLDINGS RANGE: Approximately 80-120 securities MICRO CAP OPPORTUNITIES HOLDINGS RANGE: Approximately 80-120 securities SELECT SMALL CAP VALUE HOLDINGS RANGE: Approximately 30-50 securities RESEARCH EMPHASIS: Bottom-up fundamental research VALUATION DISCIPLINE: Central BUSINESS QUALITY / FUNDAMENTALS: Central MOMENTUM: Central EXACT OPPORTUNISTIC VALUE FUND HOLDINGS RANGE: NOT PUBLICLY CONFIRMED EXACT OPPORTUNISTIC VALUE FUND NET EXPOSURE: NOT PUBLICLY CONFIRMED EXACT OPPORTUNISTIC VALUE FUND SHORT BOOK: NOT PUBLICLY DISCLOSED EXACT OPPORTUNISTIC VALUE FUND LEVERAGE: NOT PUBLICLY DISCLOSED
INDEPENDENT HISTORICAL OWNERSHIP EVIDENCE
HISTORICAL SEC-FILED INVESTMENT SCHEDULES: Robeco WPG Opportunistic Value Fund interests appear in third-party institutional filings SIGNIFICANCE: Provides evidence that outside institutional portfolios historically held fund interests IMPORTANT: Historical institutional ownership does not establish current investors or performance IMPORTANT: Fair values in old investor schedules should not be treated as current fund NAV
WEBSITE / ENTITY PENETRATION
SEC issuer — CONFIRMED CIK 0001107541 — CONFIRMED 1999 first sale — CONFIRMED September 18, 2026 Form D/A — CONFIRMED $86.7295M cumulative amount sold — CONFIRMED 113 investors — CONFIRMED Rule 506(b) — CONFIRMED Section 3(c)(1) — CONFIRMED WPG Opportunistic Value Manager Fund GP — CONFIRMED Boston Partners sole-member relationship — CONFIRMED Boston Partners investment-manager relationship — CONFIRMED Boston Partners / WPG DBA relationship — CONFIRMED Boston Partners Securities distribution relationship — CONFIRMED Historical Robeco names — CONFIRMED Historical New York address — CONFIRMED Current Boston address — CONFIRMED Boston Partners current operating website — CONFIRMED WPG Partners current operating division — CONFIRMED Boston Partners $149.6B AUM — COMPANY REPORTED WPG Small Cap Diversified $820M AUM — COMPANY REPORTED WPG Micro Cap Opportunities $379M AUM — COMPANY REPORTED WPG Select Small Cap Value $2.2B AUM — COMPANY REPORTED 700+ annual company meetings — COMPANY REPORTED Current Opportunistic Value Fund NAV — NOT PUBLICLY DISCLOSED Current Opportunistic Value Fund portfolio — NOT PUBLICLY DISCLOSED Current gross exposure — NOT PUBLICLY DISCLOSED Current net exposure — NOT PUBLICLY DISCLOSED Current short exposure — NOT PUBLICLY DISCLOSED Current leverage — NOT PUBLICLY DISCLOSED Current management fee — OFFERING DOCUMENTS REQUIRED Current incentive fee — OFFERING DOCUMENTS REQUIRED Current high-water-mark terms — OFFERING DOCUMENTS REQUIRED Current redemption terms — OFFERING DOCUMENTS REQUIRED Current auditor — OFFERING / FINANCIAL DOCUMENTS REQUIRED Current administrator — OFFERING DOCUMENTS REQUIRED
STRUCTURAL DISTINCTIONS
WPG PARTNERS OPPORTUNISTIC VALUE FUND LP: Private Delaware hedge fund WPG OPPORTUNISTIC VALUE MANAGER FUND LLC: General Partner BOSTON PARTNERS GLOBAL INVESTORS INC.: Sole member of GP and investment manager BOSTON PARTNERS SECURITIES LLC: Sales / distribution entity WPG PARTNERS: Boston Partners investment division / DBA WPG SMALL CAP VALUE DIVERSIFIED FUND: Separate registered/public investment product WPG SELECT SMALL CAP VALUE FUND: Separate investment product WPG MICRO CAP STRATEGY: Separate strategy IMPORTANT: Similar WPG branding does not make separate funds legally interchangeable
LONGEVITY ANALYSIS
FIRST SALE TO 2026: More than 26 years DOT-COM ERA: Fund existed GLOBAL FINANCIAL CRISIS: Fund existed EUROPEAN DEBT CRISIS: Fund existed COVID-19 MARKET SHOCK: Fund existed 2022 RATE RESET: Fund existed MANAGER BRAND TRANSITION: Robeco WPG to Boston Partners / WPG Partners INVESTOR COUNT 2010 TO 2026: Increased from 82 to 113 CUMULATIVE SALES 2010 TO 2026: Increased from approximately $65.97M to $86.73M IMPORTANT: Operating longevity demonstrates continuity but not superior investment performance
CORE INVESTOR QUESTIONS
What is the current fund NAV What is current investor capital How much capital was redeemed during the last five years What is annualized net return since December 1999 What is annualized return over the last 3, 5, 10 and 20 years What benchmark does the fund use What is maximum historical drawdown What was the longest drawdown-recovery period What was the fund's performance during 2000-2002 What was performance during 2008 What was performance during March 2020 What was performance during 2022 What was performance during the 2025-2026 small-cap cycle What percentage of NAV is long What percentage is short What is normal gross exposure What is normal net exposure What is maximum permitted gross exposure Can net exposure become negative What percentage of capital is invested in small-cap stocks What percentage can be invested in micro-cap companies What market-cap floor applies How concentrated are the ten largest long positions How concentrated are the ten largest shorts How many positions are normally held What factor exposures dominate the portfolio How much value-factor exposure exists How much momentum exposure exists How much quality exposure exists How much sector concentration is permitted How much financials exposure exists How much industrials exposure exists How much technology exposure exists How much healthcare exposure exists What percentage of the portfolio is illiquid What average daily trading-volume limit applies How many days would it take to liquidate the portfolio under normal volume assumptions What percentage of short positions are hard-to-borrow How much stock-borrow cost does the fund incur What was the largest historical short squeeze loss Does the fund use options Does it use swaps Does it use index futures Does it use portfolio leverage Who are the prime brokers How is counterparty exposure controlled What is the management fee What is the incentive allocation Does the fund use a high-water mark Is there a hurdle rate What redemption frequency applies What advance notice is required Are gates permitted Can withdrawals be suspended Are side pockets permitted Who is the current administrator Who is the current auditor How frequently are investors given position-level transparency Why does Form D list a $0 minimum What actual subscription minimum applies under the PPM How are WPG investment opportunities allocated among this fund, registered WPG funds and separate accounts
CORE RISKS
Small-cap equity risk; micro-cap liquidity risk; value-factor underperformance; momentum reversal; fundamental-analysis error; long/short basis risk; short squeeze risk; stock-borrow availability; stock-borrow cost; leverage; gross-exposure risk; net-market exposure; concentrated sector exposure; factor crowding; liquidity gaps; market dislocations; valuation traps; earnings-estimate error; portfolio-manager risk; model-screening risk; counterparty risk; prime-broker risk; redemption pressure; gate or suspension risk; fee drag; tax complexity; long operating history does not guarantee future returns; cumulative Form D sales do not equal current NAV; Boston Partners AUM does not equal fund assets; WPG public strategy AUM does not establish private-fund scale.
PRIMARY EVIDENCE REVIEWED
U.S. SECURITIES AND EXCHANGE COMMISSION WPG Partners Opportunistic Value Fund, L.P. CIK 0001107541 Form D/A September 18, 2026
U.S. SECURITIES AND EXCHANGE COMMISSION Robeco WPG Opportunistic Value Fund, L.P. Historical Form D/A August 17, 2010
U.S. SECURITIES AND EXCHANGE COMMISSION WPG Partners Opportunistic Value Fund, L.P. Historical Form D/A September 22, 2023
HISTORICAL SEC EDGAR RECORDS WPG Opportunistic Value Fund Robeco WPG Opportunistic Value Fund WPG Partners Opportunistic Value Fund Used to establish legal-name and manager continuity
BOSTON PARTNERS OFFICIAL WEBSITE Firm history AUM as of June 30, 2026 Three Circle investment philosophy Long/Short Equity platform Operating scale
WPG PARTNERS OFFICIAL WEBSITE Small Cap Diversified Micro Cap Opportunities Select Small Cap Value Investment process Research methodology Current investment team Strategy AUM as of June 30, 2026
U.S. SEC-FILED THIRD-PARTY INVESTMENT SCHEDULES Historical Robeco WPG Opportunistic Value Fund ownership Used only as independent evidence of historical institutional investment
IMPORTANT FORM D NOTICE
Form D is a notice of an exempt securities offering.
It does not mean that the SEC has approved WPG Partners Opportunistic Value Fund, Boston Partners, WPG Partners, the portfolio manager, the valuation process or the fund's investment strategy.
The September 18, 2026 amendment reports $86,729,500 cumulatively sold to 113 investors since an offering whose first sale dates to December 31, 1999.
That is strong evidence of a long-running private fund.
It is not evidence that $86.73 million remains invested today.
It is not current NAV.
It is not a performance figure.
INDEPENDENT ASSESSMENT
WPG Partners Opportunistic Value Fund has one of the strongest continuity profiles in this group.
The SEC trail reaches back to a December 1999 first sale.
The same CIK preserves the transition from WPG Opportunistic Value Fund to Robeco WPG and finally WPG Partners.
The latest filing then provides a direct legal chain from the fund to WPG Opportunistic Value Manager Fund and from that General Partner to Boston Partners Global Investors.
That materially reduces uncertainty about the manager and operating platform.
The historical capital record is also unusually useful.
Cumulative Form D sales moved from approximately $65.97 million and 82 investors in 2010 to $84.22 million and 109 investors in 2023 and finally $86.73 million and 113 investors in 2026.
This shows continued subscriptions and a persistent investor base over many years.
It does not reveal the present value of the portfolio because subscriptions, redemptions, gains and losses all occur outside Form D's cumulative sales figure.
The principal remaining information gap is investment performance.
Boston Partners provides extensive public information about its value philosophy and WPG's small-cap research process, but the private Opportunistic Value Fund's current portfolio, exposure, leverage, liquidity, fee structure and audited return history are not disclosed in the latest Form D.
Those are the variables that should determine investment analysis now.
The fund's existence is well established.
Its management chain is well established.
Its multi-decade regulatory continuity is well established.
The investment case still depends on current performance, portfolio risk, liquidity and fees.
SEC Form D verifies the offering.
It does not certify the investment outcome.