10b5-1 Plans in an Acquisition Scenario

An executive has a 10b5-1 plan running at her company. The board begins discussing a potential acquisition. Within 90 days, the deal is signed at a 35% premium. The executive’s plan has been executing quietly on schedule: three trades completed before deal signing, one more scheduled to execute the day after the announcement. The executive now faces a layered set of questions. Was the plan’s continued operation through deal discussions consistent with the good-faith requirement? Does the post-announcement execution still enjoy the affirmative defense? What happens to the plan after the deal closes?

Acquisition scenarios create the most complex 10b5-1 questions because M&A discussions generate MNPI faster than almost any other event, and timing can look opportunistic even when it isn’t.

This article walks through the typical lifecycle of a 10b5-1 plan during an acquisition: pre-announcement, announcement, pre-closing, and post-closing.

Phase 1: deal discussions pre-announcement

The MNPI problem

When the board and senior executives begin discussing a potential acquisition, the existence of the discussion is itself MNPI. An executive who adopts a 10b5-1 plan during this phase will typically fail the good-faith-adoption requirement: adoption was while aware of MNPI.

Existing plans

Plans adopted before the MNPI emerged continue to operate. The affirmative defense applies to trades executed under the existing plan’s terms, even during MNPI phases. This is the core benefit of 10b5-1: legitimately-adopted plans keep executing through subsequent information events.

What to avoid

• Adopting a new plan during deal discussions
• Modifying an existing plan to change share amounts, limits, or timing after MNPI emerges
• Terminating an existing plan to avoid selling at a pre-announcement price (this is a red-flag optical problem even if the termination is for legitimate reasons)

What to do

• If you have an existing plan: let it execute per its terms
• If you are considering a new plan: wait until the MNPI is public or stale
• If you need to modify or terminate for non-MNPI reasons: document carefully and consult counsel

Phase 2: deal announcement

Announcement-day execution

If a trade is scheduled to execute on the day of the deal announcement, the trade typically executes. The announcement itself converts the MNPI into public information. By the time the broker executes, the information is public.

Day-after execution

A trade executing the day after an acquisition announcement at a higher post-announcement price looks optimal. The executive didn’t control the timing; the plan did. This is the core protection 10b5-1 provides.

Optics

Even with clean legal compliance, the pattern of “executive sold into acquisition pop under 10b5-1 plan adopted months earlier” often draws commentary. PR and IR teams should be prepared to explain the plan-timing history.

Suspending the plan

Some companies have policy that suspends 10b5-1 execution during the announcement window (even for Section 16 officers). This is a company-level administrative choice, not a Rule 10b5-1 requirement. Check your company’s policy.

Phase 3: pre-closing period

Continued execution

Between signing and closing, the plan typically continues executing. The acquisition is public information. No additional MNPI issue from the deal itself.

Watch for new MNPI

Other material information can emerge during the pre-closing period: regulatory approvals, antitrust reviews, financing arrangements. Executives at the target or acquirer may learn of material issues. The plan’s continued execution is protected for these issues too, as long as the plan was adopted before the issues arose.

Preference cash-outs

Acquisitions typically cash-out vested equity. Unvested may accelerate or roll into acquirer equity. Plans covering cash-out shares may execute or may be terminated by the deal terms. Review plan documents for change-of-control provisions.

Plan termination at closing

Most plans terminate automatically upon change of control. The plan’s terms will specify. If the company is acquired, the target’s equity is converted, and the plan at the target ceases.

Phase 4: post-closing

For cash acquisitions

Shares are cashed out. No further trading at the target. Any plan at the target is moot post-closing.

For stock-for-stock mergers

Target shareholders receive acquirer shares. The 10b5-1 plan at the target does not automatically apply to acquirer shares. A new plan at the acquirer would be required for continuing trading.

For rollover or earn-out

If executives roll over equity or receive earn-out consideration, specialized plans can govern subsequent trading. These are typically designed into the deal structure.

New plans at the acquirer

If the executive becomes a Section 16 officer at the acquirer, fresh 10b5-1 plans require new adoption with full cooling-off and certification. The single-plan-at-a-time rule resets because a prior plan at the target does not count against a plan at the acquirer (different issuer).

The pre-closing “surviving company” problem

For a stock-for-stock merger where the target’s shares convert to acquirer shares, plans at the target may need special attention.

If plan covers target common stock

Plan terminates when the shares cease to exist.

If plan references acquirer stock post-merger

Rarely drafted this way. Most plans specify the original issuer’s common stock and do not automatically convert.

Continuation plans at the acquirer

Executives may adopt new plans at the acquirer after closing. Fresh cooling-off and certification apply. If the executive wants a continuous trading presence, there will be an execution gap during the post-closing cooling-off.

Deal abandonment

If an acquisition discussion falls apart without public announcement:

Existing plan continues

Plans continue executing per their terms. No modifications needed.

Subsequent plan adoption timing

Once deal discussions are fully dead and stale as MNPI, the executive can adopt new plans. The question of staleness is fact-specific. Counsel typically advises waiting 30-60 days after deal discussions end to confirm staleness.

Documentation

Memo the end of deal discussions and the timing of subsequent plan adoption. Establishes good-faith record.

Common scenarios

”I have a plan, and my company is in active deal talks”

Your plan continues. Do not modify or terminate. Do not adopt a new plan. Document the existing plan’s adoption timing (which predated MNPI). Coordinate with general counsel for any Item 408(a) disclosure implications.

”I want a plan, but deal talks are ongoing”

Wait. Adopting a plan during deal talks fails the good-faith-adoption requirement. Wait until the deal is public (announcement) or stale (discussions ended with no progress for 30-60 days).

”Deal was announced yesterday; I have a plan scheduled to execute today”

Let it execute per the plan’s terms. The plan was adopted before MNPI, and the plan’s independent execution is what the 10b5-1 defense is designed for.

”I’m about to leave after the deal closes; do I need a plan?”

Post-departure trading may face different rules (former-employee blackouts, restrictions in the deal agreements). Consult counsel. 10b5-1 plans at a departing executive’s former employer are often terminated at departure per plan terms.

”The deal is in antitrust review; do I terminate my plan?”

No. The plan continues. Antitrust review is public information. Unless new non-public information emerges (e.g., confidential remedies), the plan’s continued execution is unaffected.

Insider-trading concerns during deal timing

The 10b5-1 affirmative defense is the strongest protection available for trading during MNPI-heavy periods. But it is not absolute. In an acquisition context:

Plan adoption during MNPI

Adoption during known deal talks fails the defense. All trades under the plan are exposed to insider-trading analysis.

Plan modification during MNPI

A modification during known deal talks is similarly problematic. The modified plan is a new plan adopted while aware of MNPI.

Plan termination during MNPI

Termination can be interpreted as using MNPI to avoid unfavorable trades or maximize favorable ones. The executive’s trades under the plan before termination are generally protected, but post-termination trading is not.

Adoption immediately before deal discussions

Adopting a plan in March and starting deal discussions in April raises the question whether the plan adoption was timed to lock in the defense before anticipated deal-related trading. Counsel should document that deal discussions were genuinely not foreseeable at adoption.

Frequently asked

What if my plan covers the wrong share class post-merger?

Plan terminates for practical purposes. The target common no longer exists as a tradeable security. Adopt a new plan at the acquirer if continued trading is desired.

Can I modify my plan to account for a pending deal?

Modifying during known deal discussions is problematic. Better to let the plan run as adopted and address post-deal trading separately.

Do plans typically have specific M&A provisions?

Some plans include change-of-control termination language. Review plan documents. Missing M&A provisions can create ambiguity in an actual deal.

What if I’m on the acquirer side?

Acquirer executives with MNPI about the target deal face similar restrictions. Existing plans continue. New plans cannot be adopted while the deal is material MNPI.

Does the 2023 certification mention M&A specifically?

The certification asks about awareness of MNPI generally. Active deal discussions are MNPI, so they are covered by the certification requirement even without M&A-specific language.

Can I adopt a plan right before closing?

Closing is public information; post-announcement, the deal is not MNPI for existing shareholders. But new MNPI (e.g., about post-closing operations) may exist. Confirm with counsel.

What about “window periods” policy during an announcement?

Many companies impose blackouts during deal announcements that override 10b5-1 plan execution. This is a company-level choice, not a Rule 10b5-1 requirement. Plans can be structured to suspend during company-declared blackouts.

Next step

If your company is discussing an acquisition (or you suspect it might be), do not modify or terminate your existing 10b5-1 plan without first consulting general counsel. Do not adopt a new plan until the situation is clearly public or fully stale. Document every adoption, modification, and termination decision with contemporaneous memos explaining the non-MNPI reasons. The acquisition scenario is where 10b5-1 plans are most valuable and most scrutinized; discipline matters most here.