Corporate Shareholder Agreement Governance-Override Requirements in Connecticut

At a glance

Requirements one by one

A qualifying agreement can displace the Act's board defaults

Connecticut makes a Section 33-717 agreement effective among the shareholders and the corporation even when it conflicts with another provision of the Business Corporation Act. The ordinary rule still requires a board and places corporate powers and management under its authority, but Sections 33-717 and 33-735 expressly recognize the qualifying agreement as an exception (Conn. Gen. Stat. §§ 33-717(a), 33-735(a)-(b)).

The statutory menu reaches board elimination or restriction, distributions subject to Section 33-687, director and officer selection or removal, divided or weighted shareholder/director voting and director proxies, insider property or services arrangements, transferred management and deadlock authority, dissolution triggers, and a residual governance category bounded by public policy.

Formation is unanimous, while the agreement can change its amendment rule

The agreement must use one of two routes. It may be set out in the certificate of incorporation or bylaws and approved by every person who is then a shareholder. Or it may be a separate writing signed by every then-current shareholder and made known to the corporation (Conn. Gen. Stat. § 33-717(b)). The separate-writing route does not state that the corporation must sign as a party or that the board must set consideration.

Unless the agreement provides another rule, amendment requires all persons who are shareholders at the amendment time. That makes the initial and default amendment groups different snapshots: the first uses shareholders when the agreement is made, and the second uses shareholders when it is changed.

Before any shares issue, incorporators or share subscribers may act as the shareholders for this purpose. A beneficial owner counts as a statutory "shareholder" only to the extent a nominee certificate on file with the corporation grants the relevant rights (Conn. Gen. Stat. §§ 33-600(34), 33-717(g)); the no-shares substitute itself appears in Conn. Gen. Stat. § 33-717(g).

Duration and share notice follow separate rules

The agreement controls its own duration limits, if any. A legacy agreement in effect on or before September 30, 2015 instead has a ten-year default unless it provides otherwise (Conn. Gen. Stat. § 33-717(h)). The current statute states no general renewal or extension procedure and no successor-holder assent rule.

The existence of the agreement must be stated conspicuously on every outstanding share certificate or on the information statement for uncertificated shares. If certificated shares are already outstanding, the corporation must recall the certificates and issue compliant substitutes. Omitting the notice does not invalidate the agreement or corporate action under it (Conn. Gen. Stat. § 33-717(c)).

Purchaser rescission has two independent clocks

A purchaser who lacked knowledge when purchasing may rescind. Compliant certificate or information-statement notice creates deemed knowledge; for an uncertificated share, the information statement must also reach the purchaser at or before purchase.

The action must begin by the earlier of 90 days after discovery of the agreement or two years after purchase. The statute supplies rescission, not an alternative agreement-nondisclosure damages remedy (Conn. Gen. Stat. § 33-717(c)).

Public status ends the route and transferred power moves liability

The agreement ceases when the corporation becomes a public corporation: Connecticut defines that status by national-exchange listing or regular trading in the specified securities-association market. After an agreement ends for any reason, the board may remove it and its references from the certificate or bylaws without shareholder action (Conn. Gen. Stat. §§ 33-600(28), 33-717(d)).

To the extent an agreement limits board discretion or power, directors are relieved of director-law liability and the persons receiving the power assume that liability. The agreement, partnership-like treatment, or failure to observe covered corporate formalities does not by itself make a shareholder personally liable for corporate acts or debts (Conn. Gen. Stat. § 33-717(e)- (f)); together, these cessation and liability rules appear in Conn. Gen. Stat. § 33-717(d)-(f).

What trips people up

Notice omission has a split consequence. It does not invalidate the agreement or action, but it can preserve rescission for a purchaser who lacked knowledge. The 90-day discovery period never extends the outside two-year purchase limit; the earlier deadline controls.

The public-company cutoff is also automatic. A private-company agreement does not keep its Section 33-717 effect after the corporation meets the statutory listing or regular-trading definition, even if the agreement itself says it continues.

Finally, the statute's ten-year language is a legacy rule, not the current default for every new agreement. A post-September 2015 agreement uses the duration limits stated in the agreement, if any.

Common questions

Must the corporation sign the separate Connecticut agreement?

Section 33-717(b) does not state a corporation-signature requirement. It requires every current shareholder to sign the writing and requires the agreement to be made known to the corporation.

Who approves an agreement before any shares are issued?

Incorporators or subscribers for shares may act as shareholders when no shares have been issued. Once shares exist, the all-current-shareholder rule applies to the persons who qualify as shareholders when the agreement is made.

Can the board remove charter references after the agreement ends?

Yes. If the agreement is contained or referred to in the certificate or bylaws, Section 33-717(d) permits the board to adopt an amendment deleting the agreement and its references without shareholder action after the agreement ceases for any reason.

Statutes and sources

• Conn. Gen. Stat. § 33-600(6), (28), and (34) — domestic corporation, public corporation, and shareholder definitions. Official Connecticut statute, accessed August 28, 2026.
• Conn. Gen. Stat. § 33-717(a)-(h) — corporation-binding effect, subject menu, formation, amendment, notice, recall, validity, purchaser knowledge and rescission, public cutoff, liability allocation, no-shares participants, and duration. Official Connecticut statute, accessed August 28, 2026.
• Conn. Gen. Stat. § 33-735(a)-(b) — ordinary board requirement and Section 33-717 exception. Official Connecticut statute, accessed August 28, 2026.