SEC Rule 13e-4

A significant development in the rule's practical operation occurred on April 16, 2026, when the Division of Corporation Finance issued an exemptive order, effective immediately, permitting qualifying issuer self-tender offers for less than all outstanding shares to remain open for a minimum of 10 business days rather than the standard 20-business-day minimum — halving the standard minimum offering period for eligible partial repurchase tender offers and marking the most significant regulatory accommodation in the rule's offering period framework since the rule's original adoption.

Overview and Regulatory Purpose

The issuer tender offer occupies a distinctive position in the corporate finance landscape. Unlike an open-market repurchase conducted under the Rule 10b-18 safe harbour — in which the issuer purchases shares daily through broker-dealers without any formal offer mechanism and without requiring shareholders to make affirmative tender decisions — an issuer tender offer involves a formal public offer to purchase shares from all holders at a specified price or within a specified price range during a defined offering period. 

The formal offer mechanism introduces a set of investor protection considerations that open-market repurchases do not raise: shareholders must decide whether to tender within a defined period, may be subject to proration if the offer is oversubscribed, and face the risk that the offer price may not reflect material information about the company's value that management possesses but has not disclosed.

Rule 13e-4's regulatory framework addresses these investor protection concerns through three principal mechanisms. 

The disclosure requirements ensure that shareholders have access to the material information necessary to make an informed tendering decision before the offer expires. The minimum offering period ensures that shareholders have adequate time to evaluate the offer, consult advisers, and determine whether to tender. 

The all-holders and best price rules ensure that all shareholders of the subject class are treated equally — that the issuer cannot structure a tender offer that benefits certain shareholders over others through discriminatory pricing or selective access.

Statutory Authority and Rulemaking History

Rule 13e-4 derives its statutory authority from Section 13(e)(1) of the Securities Exchange Act of 1934, which grants the Commission authority to prescribe rules and regulations in connection with purchases by issuers of their own securities, including rules requiring disclosure of material information and rules preventing fraud, manipulation, and deception. 

The Commission adopted Rule 13e-4 in 1979 — Securities Exchange Act Release No. 34-16112, published at 44 FR 46413 — contemporaneously with the adoption of Rule 13e-3 governing going private transactions, as part of a comprehensive framework for Exchange Act regulation of self-tender transactions.

Rule 13e-4 has been amended on numerous occasions since its original adoption, most significantly in connection with major overhauls of the entire tender offer regulatory framework. 

The 1999 amendments — Securities Exchange Act Release No. 34-41527 — comprehensively updated the rule's filing, timing, and disclosure requirements and introduced Schedule TO as the unified filing form for both issuer and third-party tender offers. Subsequent amendments have addressed specific aspects of the rule's requirements — including amendments to the cross-border exemption provisions, the odd-lot programme mechanics, and the going private transaction interface — without altering the rule's fundamental architecture.

The April 16, 2026 Division of Corporation Finance exemptive order reducing the minimum offering period to 10 business days for qualifying partial issuer self-tenders is not an amendment to Rule 13e-4's operative text — the rule's 20-business-day minimum remains codified in Rule 13e-4(f)(1)(i) — but it operates as a blanket exemption applicable to qualifying transactions without the need for case-by-case no-action relief that had previously been the only mechanism for obtaining period reductions.

Key Provisions and Operative Requirements

Rule 13e-4(b) establishes the foundational prohibition. No issuer or affiliate shall make an issuer tender offer unless the offer complies with the disclosure, filing, dissemination, and conduct requirements of Rule 13e-4. This prohibition is absolute — an issuer that makes a tender offer for its own equity securities without compliance has violated Section 13(e)(1) regardless of the offer's substantive terms.

Rule 13e-4(c) establishes the filing obligations. The issuer or affiliate must file with the Commission all written communications relating to the issuer tender offer from and including the first public announcement — a pre-commencement communications filing requirement that ensures the Commission and the public have access to every written statement made about the offer from its earliest disclosure. 

The primary filing instrument is Schedule TO, which must be filed at commencement and amended to report promptly any material changes in the information previously disclosed. A final amendment reporting the results of the offer must be filed promptly after the offer's completion or termination.

Rule 13e-4(e) establishes the dissemination requirements. The offer and all required information must be published, sent, or given to security holders of the subject class no later than the date of commencement of the offer. 

For offers disseminated by publication — typically through press release and EDGAR filing — the issuer must publish a summary advertisement in a newspaper of general circulation and mail or otherwise transmit the offer materials to all security holders of record on the date of publication. 

The dissemination obligation ensures that security holders are not merely notified through Commission filings that they must actively retrieve but receive the offer materials directly.

Rule 13e-4(f)(1) establishes the minimum offering period. An issuer tender offer must remain open for a minimum of 20 business days from the date the offer is first published, sent, or given to security holders. This 20-business-day minimum has been the standard requirement since the rule's original adoption and reflects the Commission's determination that security holders need adequate time to evaluate the offer, obtain independent valuation advice where warranted, and decide whether the offered price appropriately compensates them for surrendering their shares. The April 16, 2026 exemptive order provides that qualifying partial issuer self-tenders — cash offers for less than all outstanding shares, not structured as going-private transactions, and not relying on cross-border exemptions — may remain open for a minimum of 10 business days, with specific additional conditions addressing competing offer emergence, announcement mechanics, and amendment timing.

Rule 13e-4(f)(1)(ii) provides the price and percentage change extension requirement. If during the pendency of a tender offer the issuer increases or decreases the price offered or the percentage of securities sought, the offer must remain open for at least 10 additional business days from the date the notice of such change is first published, sent, or given to security holders. The 10-business-day extension requirement ensures that security holders have adequate time to evaluate any material change in the offer's terms before the expiration of the revised offer.

Rule 13e-4(f)(8) establishes the all-holders and best price rules — the equal treatment provisions that are among the most commercially significant conditions in the issuer tender offer framework. Rule 13e-4(f)(8)(i) requires that the issuer tender offer be open to all security holders of the class of securities subject to the offer. This all-holders requirement prevents the issuer from structuring a tender offer that is available only to selected shareholders — such as a tender offer limited to institutional shareholders or to shareholders above a specified minimum holding size — while excluding retail shareholders from the opportunity to participate. Rule 13e-4(f)(8)(ii) requires that the consideration paid to any security holder pursuant to an issuer tender offer be the highest consideration paid to any other security holder during such tender offer. The best price rule ensures that the issuer cannot pay different prices to different shareholders tendering in the same offer — if the issuer increases the offer price during the pendency of the offer, all shareholders who have already tendered must receive the increased price.

Rule 13e-4(f)(5) requires that security holders who tender their securities pursuant to an issuer tender offer have the right to withdraw those securities at any time during the period the issuer tender offer is open. Withdrawal rights must remain available until the expiration of the offer and, where the issuer has not yet accepted tendered securities for payment, for an additional period of 60 business days after the original offer period. This right to withdraw protects security holders from being irrevocably committed to a tendering decision that may become unfavourable if new information about the issuer's value emerges during the offer period.

Scope of Application

Rule 13e-4 applies to all tender offers by an issuer for its own equity securities where the issuer has a class of equity securities registered under Section 12 of the Exchange Act, or where the issuer files periodic reports under Section 15(d) of the Exchange Act, or where the issuer is a closed-end investment company registered under the Investment Company Act of 1940. The rule also applies to tender offers by an affiliate of the issuer for the issuer's equity securities where the tender offer is not subject to Section 14(d) — covering, most commonly, controlling shareholders or parent companies that conduct tender offers for the issuer's shares that are not subject to third-party tender offer Regulation 14D.

The rule does not apply to odd-lot tender offers where the purpose is solely to reduce administrative costs associated with maintaining small shareholder accounts, provided the odd-lot offer is limited to security holders who own fewer than a specified minimum number of shares — typically 100 shares — and no odd-lot premium is offered above the market price. This odd-lot exception is narrow and the Division of Corporation Finance has applied it conservatively, requiring that offers structured as odd-lot tender offers genuinely serve the administrative cost reduction purpose rather than serving as a mechanism for selective shareholder elimination at enhanced prices.

The cross-border exemption under Rule 13e-4(i) provides qualified relief from certain Rule 13e-4 procedural requirements for foreign private issuers conducting issuer tender offers where U.S. holders constitute a specified low percentage of the outstanding subject securities. Where U.S. holders hold 10% or less of the outstanding subject class, the issuer may conduct the tender offer in compliance with its home country regulatory requirements — modified by certain specified U.S. investor protection conditions — without full Rule 13e-4 compliance. Where U.S. holders hold more than 10% but no more than 40%, a modified set of Rule 13e-4 requirements applies, providing partial relief while maintaining core U.S. investor protections.

Relationship to Related Rules and Regulations

Rule 13e-4's relationship with Rule 14e-1 is structural and essential. Rule 14e-1, which applies to all tender offers including issuer tender offers, independently requires a minimum offering period of 20 business days and provides requirements for maintaining the offer open following price or percentage changes. The April 16, 2026 exemptive order granted relief from both Rule 13e-4(f)(1)(i) and Rule 14e-1(a) simultaneously for qualifying issuer self-tenders, recognising that both rules imposed the 20-business-day minimum and that relief from only one rule would be insufficient to enable the shortened offering period.

Rule 13e-3's going private transaction framework directly intersects with Rule 13e-4 where an issuer tender offer has a reasonable likelihood or purpose of causing a class of equity securities to become eligible for deregistration. In that circumstance, both Rule 13e-3 and Rule 13e-4 apply simultaneously, with Rule 13e-3 imposing the additional fairness disclosure obligations appropriate to the conflict of interest inherent in the going private context. The April 2026 exemptive order specifically excluded going-private tender offers from eligibility for the 10-business-day shortened period, preserving the full 20-business-day minimum for transactions involving the heightened investor protection concerns that Rule 13e-3 addresses.

Rule 10b-18's open-market repurchase safe harbour and Rule 13e-4's tender offer framework are the two primary mechanisms through which issuers return capital to shareholders through equity repurchases. An issuer that wishes to purchase shares at a premium to market — as in a fixed-price tender offer — must use the Rule 13e-4 framework, since Rule 10b-18's price condition limits open-market purchases to the highest independent bid or last transaction price. An issuer conducting a modified Dutch auction tender offer — in which security holders specify the price within a stated range at which they are willing to tender, with the clearing price determined after the offer closes — must similarly use Rule 13e-4's framework.

Amendment History and Regulatory Evolution

Rule 13e-4's most significant formal amendments occurred in the 1999 comprehensive tender offer rule modernisation, which introduced Schedule TO as the unified filing form, updated the offering period and dissemination requirements, and aligned Rule 13e-4 with the contemporaneously updated Regulation 14D third-party tender offer rules. The rule's operative conditions — the 20-business-day minimum, the all-holders and best price rules, the withdrawal rights framework, and the filing obligations — have remained substantively stable since 1999.

The April 16, 2026 exemptive order granting the 10-business-day shortened period for qualifying partial issuer self-tenders is the most significant practical development in Rule 13e-4's operational framework in over two decades. The Division's stated rationale — addressing market inefficiencies, reflecting technological advancements enabling faster dissemination of offer materials, and reducing unnecessary exposure to market fluctuations — reflects Chair Atkins's broader deregulatory agenda and the Commission's recognition that a 20-business-day minimum designed for a paper-based, mail-disseminated offering environment may be unnecessarily restrictive when offer materials are available on EDGAR and through electronic dissemination within hours of commencement. The exemptive order stops short of formal rulemaking — it operates as a blanket exemption under the Division's delegated authority rather than as an amendment to Rule 13e-4's codified text — leaving the formal minimum offering period at 20 business days in the rule itself while providing a readily available pathway to the shortened period for qualifying transactions.

Enforcement Context and SEC Action Patterns

Rule 13e-4 enforcement has concentrated on three recurring categories. The first involves violations of the all-holders and best price rules — the most frequently litigated provisions — including cases where issuers paid different consideration to different shareholders through side arrangements, employment agreements characterised as merger consideration, or other mechanisms that effectively provided selected shareholders with superior pricing. The Commission has taken an expansive view of what constitutes consideration for best price rule purposes, treating payments to tendering shareholders in connection with employment or consulting agreements, non-competition covenants, and similar arrangements as part of the consideration for securities if those arrangements were negotiated in connection with the tender offer.

The second enforcement category involves failures to comply with the minimum offering period — most commonly, premature acceptance and payment for tendered securities before the 20-business-day period has expired, or inadequate extensions following price or percentage changes. The third category involves material misstatements or omissions in Schedule TO filings — where the offer documents disclosed inaccurate information about the issuer's financial condition, the purposes of the repurchase, or the basis for the offered price.

Examination Relevance and Key Takeaways

Rule 13e-4 is examined at the Series 7 and Series 65 levels in the context of issuer repurchase mechanics and the alternative to open-market repurchase programmes. The distinction between the Rule 10b-18 open-market repurchase safe harbour — which requires purchases at or below market price — and the Rule 13e-4 tender offer framework — which permits purchases at a premium to market through a formal offer mechanism — is a consistently examined concept. The all-holders and best price rules, the 20-business-day standard minimum offering period, and the withdrawal rights requirement are the core Rule 13e-4 provisions examined at both levels.

The April 2026 exemptive order's availability for partial issuer self-tenders and its exclusion of going-private transactions from the shortened period are increasingly relevant examination content given the order's immediate effective date and its significance as the most recent material development in the issuer tender offer regulatory framework.

The key points to retain are these. Rule 13e-4 governs tender offers by issuers and their affiliates for the issuer's own equity securities registered under Section 12 or subject to Section 15(d) reporting. The rule requires filing of Schedule TO and dissemination of offer materials to all security holders at or before commencement. The standard minimum offering period is 20 business days; an April 16, 2026 exemptive order permits qualifying partial cash issuer self-tenders — for less than all outstanding shares, not going-private transactions — to remain open for a minimum of 10 business days. 

The all-holders rule requires the offer be open to all security holders of the subject class. The best price rule requires that the highest consideration paid to any tendering shareholder be paid to all tendering shareholders. 

Withdrawal rights must be available throughout the offer period. Going-private transactions involving Rule 13e-4 are simultaneously subject to Rule 13e-3's additional fairness disclosure requirements. 

The cross-border exemption under Rule 13e-4(i) provides relief for foreign private issuers where U.S. holders constitute 10% or less of the outstanding subject class.