8-K filed January 6, 2026, 6:59 PM ET CIK 0001442836

M&A confidence high sentiment neutral materiality 0.95

Mersana acquired by Day One for $25.00/share plus CVR up to $30.25

Mersana Therapeutics, Inc.

Tender offer expired Jan 5, 2026; 60.57% of shares tendered; merger closed Jan 6, 2026.
Consideration: $25.00 per share cash plus one non-tradeable CVR per share with potential milestone payments up to $30.25.
CVR milestones include FDA approval for ACC-1 ($9.00), first patient dosed ($4.00), and net sales thresholds; total max $30.25 per CVR.
All pre-merger directors resigned; Charles N. York II and Adam Dubow appointed directors; stock delisted from Nasdaq.

item 1.02 item 2.01 item 3.01 item 3.03 item 5.01 item 5.02 item 5.03 item 9.01

Machine-readable event card

schema_version: secwatch.filing_event.v1
accession: 0001104659-26-001125
form_type: 8-K
ticker: null
cik: 0001442836
company_name: Mersana Therapeutics, Inc.
filed_at: 2026-01-06T23:59:59+00:00
discovered_at: 2026-05-14T18:02:35.095986+00:00
generated_at: 2026-05-16T11:31:49.970280+00:00
sec_items: ["1.02", "2.01", "3.01", "3.03", "5.01", "5.02", "5.03", "9.01"]
event_type: m_and_a
sentiment: neutral
materiality_score: 0.95
calibrated_materiality_score: 0.95
confidence: high
secwatch_canonical_url: https://secwatch.observer/filing/0001104659-26-001125
json_url: https://secwatch.observer/filing/0001104659-26-001125.json
markdown_url: https://secwatch.observer/filing/0001104659-26-001125.md
text_url: https://secwatch.observer/filing/0001104659-26-001125.txt
edgar_index_url: https://www.sec.gov/Archives/edgar/data/1442836/000110465926001125/0001104659-26-001125-index.htm
edgar_primary_document_url: https://www.sec.gov/Archives/edgar/data/1442836/000110465926001125/tm261736d24_8k.htm
generated_by_model: deepseek-v4-flash:cloud@v2
review_status: machine_generated
human_reviewed: false
corrected: false
correction_note: null
correction_timestamp: null
superseded_by: null

JSON Markdown Plain text

Source-grounded claims

465d7bf82c0d5486ea07059bdb142e5e3ba95670

Mersana Therapeutics, Inc.: Certificate of incorporation amended and restated in its entirety effective as of the Effective Time pursuant to the Merger Agreement.

the certificate of incorporation of the Company was amended and restated in its entirety, effective as of the Effective Time

SEC 8-K Item 5.03/5.05/5.06 confidence 0.9 SEC evidence

6ddff0aa5c4904ab7cd070949d70315abfeff80a

Mersana Therapeutics, Inc.: Bylaws amended and restated in their entirety effective as of the Effective Time pursuant to the Merger Agreement.

the bylaws of the Company were amended and restated in their entirety, effective as of the Effective Time

SEC 8-K Item 5.03/5.05/5.06 confidence 0.9 SEC evidence

98d53bcea63be5f5d4b7c695b6a7866ebe4036ba

Mersana Therapeutics, Inc. underwent a change of control involving Day One Biopharmaceuticals, Inc. for $25.00 per Share in cash plus one non-tradeable contingent value right per share (closed 2026-01-06).

offer (the “Offer”) to acquire all of the issued and outstanding shares (the “Shares”) of common stock, par value $0.0001 per share, of the Company (the “Common Stock”), for (i) $25.00 per Share, net to the stockholder in cash, without interest and less any applicable tax withholding(the “Upfront Cash Consideration”), plus (ii) one non-tradeable contingent value

SEC 8-K Item 2.01/5.01 confidence 0.9 SEC evidence

Comparable filings

APAD

Enhanced Group completes de-SPAC merger with Enhanced Ltd; redemptions of $201.7M

Enhanced Group Inc. May 8, 2026, 7:59 PM ET m_and_a Items 1.01, 2.01, 5.06, 3.02, 9.01, 4.01, 3.01, 3.03, 5.01, 5.02, 5.03, 5.05, 7.01

same fact type: governance_change, ma_transaction same SEC item: 2.01, 3.01, 3.03, 5.01, 5.02, 5.03, 9.01 same event type: m_and_a similar materiality

This filing

the certificate of incorporation of the Company was amended and restated in its entirety, effective as of the Effective Time

Comparable filing

As a result of the Business Combination, the Company ceased being a shell company

Filing page SEC filing

FARM

Farmer Brothers taken private by Royal Cup for $1.29/share; merger closes May 5, 2026

FARMER BROTHERS CO May 5, 2026, 7:59 PM ET m_and_a Items 1.02, 2.01, 3.01, 3.03, 5.01, 5.02, 5.03, 7.01, 9.01

same fact type: governance_change, ma_transaction same SEC item: 1.02, 2.01, 3.01, 3.03, 5.01, 5.02, 5.03, 9.01 same event type: m_and_a similar materiality

This filing

the certificate of incorporation of the Company was amended and restated in its entirety, effective as of the Effective Time

Comparable filing

the Certificate of Incorporation of the Company that was in effect immediately before the Effective Time was amended and restated to be in the form attached hereto as Exhibit 3.1

Filing page SEC filing

CHRN

Ekso Bionics completes reverse merger with Applied Digital subsidiary; renames to ChronoScale Corp.

EKSO BIONICS HOLDINGS, INC. May 5, 2026, 7:59 PM ET m_and_a Items 1.01, 2.01, 2.02, 3.02, 3.03, 4.01, 5.01, 5.02, 5.03, 9.01

same fact type: governance_change, ma_transaction same SEC item: 2.01, 3.03, 5.01, 5.02, 5.03, 9.01 same event type: m_and_a similar materiality

This filing

the certificate of incorporation of the Company was amended and restated in its entirety, effective as of the Effective Time

Comparable filing

on May 1, 2026, the Company filed the Second Amended and Restated Articles of Incorporation (the “A&R Articles”) with the Secretary of State of the State of Nevada with a delayed effective date and time of 3:00 a.m. (Eastern Time) on May 5, 2026.

Filing page SEC filing

UHG

Stanley Martin completes $221M all-cash acquisition of United Homes at $1.18/share

United Homes Group, Inc. May 4, 2026, 7:59 PM ET m_and_a Items 1.02, 2.01, 3.01, 3.02, 3.03, 5.03, 5.01, 5.02, 8.01, 9.01

same fact type: governance_change, ma_transaction same SEC item: 1.02, 2.01, 3.01, 3.03, 5.01, 5.02, 5.03, 9.01 same event type: m_and_a similar materiality

This filing

the certificate of incorporation of the Company was amended and restated in its entirety, effective as of the Effective Time

Comparable filing

Effective upon completion of the Merger, the bylaws of the Company, as in effect immediately prior to the Effective Time, were amended and restated to be in the form of the bylaws filed herewith as Exhibit 3.2.

Filing page SEC filing

FFIC

OceanFirst completes acquisition of Flushing Financial; FFIC holders receive 0.85 OCFC shares

FLUSHING FINANCIAL CORP June 1, 2026, 5:21 PM ET m_and_a Items 2.01, 3.01, 3.03, 5.01, 5.02, 9.01

same fact type: ma_transaction same SEC item: 2.01, 3.01, 3.03, 5.01, 5.02, 9.01 same event type: m_and_a similar materiality

This filing

offer (the “Offer”) to acquire all of the issued and outstanding shares (the “Shares”) of common stock, par value $0.0001 per share, of the Company (the “Common Stock”), for (i) $25.00 per Share, net to the stockholder in cash, without interest and less any applicable tax withholding(the “Upfront Cash Consideration”), plus (ii) one non-tradeable contingent value

Comparable filing

of Flushing (“ Flushing Common Stock ”) issued and outstanding immediately prior to the Effective Time, subject to certain exceptions, was converted into the right to receive 0.85 of a share (the “ Exchange Ratio ”) of common stock, par value $0.01 per share, of OceanFirst (“ OceanFirst Common Stock ” and such consideration, the “ Merger Consideration ”).

Filing page SEC filing

Enviri II Corp

New Enviri completes spin-off; starts trading June 2 under NVRI; ~$1.2B revenue, ~$140M EBITDA

Enviri II Corp June 1, 2026, 5:18 PM ET m_and_a Items 1.01, 2.03, 3.03, 5.03, 5.01, 5.02, 5.05, 7.01, 9.01

same fact type: governance_change, ma_transaction same SEC item: 3.03, 5.01, 5.02, 5.03, 9.01 same event type: m_and_a similar materiality

This filing

the certificate of incorporation of the Company was amended and restated in its entirety, effective as of the Effective Time

Comparable filing

In connection with the Spin-Off, the Board adopted the Code of Conduct, a copy of which is available on New Enviri’s website at www.enviri.com.

Filing page SEC filing

NVRI

Enviri completes sale of Clean Earth to Veolia for $3.04B; spins off remaining businesses as New Enviri

ENVIRI Corp June 1, 2026, 5:15 PM ET m_and_a Items 1.02, 2.01, 3.01, 3.03, 5.01, 9.01

same fact type: ma_transaction same SEC item: 1.02, 2.01, 3.01, 3.03, 5.01, 9.01 same event type: m_and_a similar materiality

This filing

offer (the “Offer”) to acquire all of the issued and outstanding shares (the “Shares”) of common stock, par value $0.0001 per share, of the Company (the “Common Stock”), for (i) $25.00 per Share, net to the stockholder in cash, without interest and less any applicable tax withholding(the “Upfront Cash Consideration”), plus (ii) one non-tradeable contingent value

Comparable filing

On June 1, 2026, pursuant to the terms of the Separation Agreement and the Merger Agreement, the following series of transactions occurred

Filing page SEC filing

CTLP

Cantaloupe completes merger with 365 Retail Markets; shareholders receive $11.20/share

CANTALOUPE, INC. May 8, 2026, 7:59 PM ET m_and_a Items 1.02, 2.01, 3.01, 3.03, 5.01, 5.02, 9.01

same fact type: ma_transaction same SEC item: 1.02, 2.01, 3.01, 3.03, 5.01, 5.02, 9.01 same event type: m_and_a similar materiality

This filing

offer (the “Offer”) to acquire all of the issued and outstanding shares (the “Shares”) of common stock, par value $0.0001 per share, of the Company (the “Common Stock”), for (i) $25.00 per Share, net to the stockholder in cash, without interest and less any applicable tax withholding(the “Upfront Cash Consideration”), plus (ii) one non-tradeable contingent value

Comparable filing

Rollover Shares immediately prior to the Effective Time, and were canceled at the Effective Time for no consideration) were canceled and converted into the right to receive $11.20 in cash, without interest (such amount per share, the “ Merger Consideration ”). At the Effective Time, (i) each Company RSU (as defined in the Merger Agreement) that was

Filing page SEC filing

Source: SEC EDGAR

accession 0001104659-26-001125

view filing index on sec.gov

view primary document

This headline and bullets were generated automatically by deepseek-v4-flash:cloud@v2 from the public filing. Read the source on SEC.gov before relying on any specific claim. Not investment advice. See methodology for how this pipeline works.