1,796 material Form 8-K filings that 1,448 companies we cover made with the SEC in May 2026, each read and summarized by AI: what happened, the key figures, whether it reads positive or negative for shareholders, and how big a deal it is (impact 1-5). All of them were written later, when past filings were added: a selection, not every 8-K of the month (see the note below).
S&P Global Inc. announced the pricing of $2.0 billion in senior notes issued by Mobility Global Inc., a newly formed holding company for its Mobility division, ahead of a planned spin-off to shareholders. The offering is expected to close on May 29, 2026, and the net proceeds will be held in escrow until separation conditions are met, then used to make a cash payment to S&P Global.
Three tranches: $650 million 5.050% notes due 2029, $650 million 5.450% notes due 2031, and $700 million 6.050% notes due 2036
Offering expected to close May 29, 2026, subject to customary closing conditions
Mobility Global also entered into a $500 million senior unsecured revolving credit facility
Net proceeds to be deposited in escrow until separation conditions are satisfied
Avista Corporation sold two series of first mortgage bonds on May 14, 2026, under a private placement bond purchase agreement, with a further $70.0 million expected in August 2026. At its May 14, 2026 annual meeting, shareholders elected all eleven directors and approved three of four proposals, but did not approve the charter amendment to lower the shareholder approval requirement from 80% to a majority.
Issued $90.0 million of 4.77% first mortgage bonds due 2029 and $70.0 million of 6.10% first mortgage bonds due 2056 on May 14, 2026
Expects to issue an additional $70.0 million of 6.10% bonds in August 2026; proceeds to refinance existing debt and fund utility capital expenditures
Proposal 4 to reduce the approval threshold from 80% to a majority failed; it received 64,317,253 votes for, short of the 80% required
All eleven directors were elected; Deloitte & Touche LLP ratification and the advisory say-on-pay vote were approved
On May 19, 2026, Blackstone Mortgage Trust closed a $450 million private offering of 6.250% senior secured notes maturing June 1, 2031. The company said it plans to use the proceeds for general corporate purposes, including paying down existing secured debt, which adds new fixed-rate debt while the filing does not report any change to earnings or guidance.
Principal amount: $450 million; interest of 6.250% per year, paid semi-annually starting December 1, 2026
Notes are senior secured, sharing first-priority collateral with the term loan and existing 3.750% notes due 2027 and 7.750% notes due 2029
Indenture covenants include a maximum Total Debt to Total Assets Ratio of 83.333% before a Collateral Fall-Away Event
Change of control triggers an offer to repurchase at 101% of principal plus accrued interest
Energy Transition Special Opportunities, a blank check company, completed its initial public offering of 15,000,000 units at $10.00 per unit, raising $150,000,000 in gross proceeds, with the offering closing on May 18, 2026. Of the net proceeds from the offering and a concurrent private placement, $150,750,000 ($10.05 per unit) was placed in a trust account, and the company must complete an initial business combination by November 18, 2027 (or May 18, 2028 if it signs a business combination agreement by November 18, 2027) or redeem public shares.
15,000,000 units sold at $10.00 each for $150,000,000 gross proceeds; units began trading on NYSE on May 15, 2026 under ETSS U.
$150,750,000 ($10.05 per unit) of net proceeds placed in trust, with CST as trustee.
Private placement of 3,500,000 warrants to the Sponsor and 1,875,000 warrants to the Representative at $1.00 each, for $5,375,000 gross proceeds.
Gary Julien, Emily Kreps, and Sheryl Schwartz were appointed to the board effective May 14, 2026.
Rapid Micro Biosystems entered into an underwritten offering of about 5 million shares of Class A common stock, including pre-funded warrants, with accompanying Series A and Series B warrants, plus a concurrent sale to directors and officers. The company estimates net proceeds of about $8.9 million for working capital and general corporate purposes. The new shares and warrants add to the number of shares outstanding, which dilutes existing shareholders, while the cash raised supports the company's working capital.
3,581,000 Class A common shares plus pre-funded warrants for up to 1,463,000 shares, sold with warrants at a combined price of $1.955 per share
Series A warrants exercisable at $1.955 and Series B warrants exercisable at $2.340, both exercisable six months after issuance
Estimated net proceeds of about $8.9 million; the offering is expected to close on May 20, 2026
Concurrent sale of 71,607 shares to directors and officers for gross proceeds of about $140,000
Sabre GLBL Inc., a wholly-owned subsidiary of Sabre Corporation, issued $150.0 million of 7.00% Exchangeable Senior Notes due May 15, 2031 on May 18, 2026, in a private placement guaranteed by Sabre and Sabre Holdings. Sabre used part of the proceeds to repurchase $100.0 million of its 7.32% exchangeable notes due 2026 and intends to use the remaining proceeds to retire the other $50.0 million, which the company says results in no incremental indebtedness. Shareholders could face dilution if the notes are exchanged for stock, and the company expects hedging activity by initial holders could weigh on the share price.
$150.0 million principal of 7.00% notes due May 15, 2031, issued May 18, 2026 by Sabre GLBL Inc.
Initial exchange price of about $2.24 per share, a 30.00% premium to the $1.72 closing price on May 13, 2026.
If all notes were settled solely in shares at the initial rate, Sabre would issue 67,084,080 shares; 87,209,295 shares with the maximum make-whole increase.
$100.0 million of 7.32% exchangeable notes due 2026 to be repurchased, with the remaining $50.0 million to be retired.
On May 19, 2026, Southwest Airlines entered into an Increase Joinder and First Amendment to its Term Loan Credit Agreement with BNP Paribas acting as administrative and collateral agent. The amendment provides $1.0 billion of incremental term loans, bringing total term loans outstanding to $1.5 billion as of the filing date, and allows up to $1.0 billion more in incremental term loan commitments to be established later. The loans are secured by aircraft and related assets and mature March 11, 2029, so the filing adds secured debt that shareholders should weigh against the company's obligations.
First Incremental Term Loans total $1.0 billion; aggregate term loans outstanding are $1.5 billion as of the filing date.
Term loans mature March 11, 2029 and can be prepaid at any time without premium or penalty on at least three business days' notice.
Loans are secured by aircraft and related assets, including new assets added in the joinder, subject to a minimum collateral coverage ratio.
The existing revolving credit facility was not amended.
Humana completed the sale of $750 million each of Pre-Capitalized Trust Securities through two Horseshoe Funding trusts, on May 15, 2026. The structure gives Humana the right to require the trusts to buy up to $750 million each of its 6.062% Senior Notes due 2036 and 6.887% Senior Notes due 2055, and Humana pays facility fees on the unused portion.
Two trusts each sold 750,000 P-Caps for $750 million, closed May 15, 2026
Humana can issue up to $750 million of 6.062% Senior Notes due 2036 over ten years and up to $750 million of 6.887% Senior Notes due 2055 over thirty years
Facility fees accrue at 1.661% per year (2036 trust) and 1.916% per year (2055 trust) on the unexercised portion
Humana must exercise the rights in full if it reasonably believes consolidated net worth has fallen below $4.0 billion
Healthcare Realty Trust and its operating partnership entered into a $400.0 million senior unsecured delayed draw term loan facility with Wells Fargo Bank as administrative agent, dated May 15, 2026. No borrowings were outstanding at closing, and the company can draw in up to three additional draws until the first anniversary of the closing date. The filing gives shareholders a committed source of borrowing with a scheduled maturity of May 15, 2029, and an accordion option for up to $100.0 million more.
Facility size: $400.0 million senior unsecured delayed draw term loan, with an accordion feature for up to an additional $100.0 million
Scheduled maturity: May 15, 2029; no borrowings outstanding as of the closing date
Agreement includes customary financial covenants, including leverage and coverage ratio requirements
Blackstone Digital Infrastructure Trust completed its initial public offering of 87,500,000 shares of common stock at $20.00 per share, net of underwriting discounts and offering expenses, on May 15, 2026. The company also entered a $1.0 billion senior secured revolving credit facility with Citibank, N.A., and amended its charter and bylaws, and it plans to invest the net proceeds primarily in newly constructed, income-generating, stabilized data center assets.
IPO of 87,500,000 shares at $20.00 per share (net of underwriting discounts and offering expenses) completed May 15, 2026
Underwriters exercised their 30-day option in full on May 15, 2026; the additional shares are expected to close May 20, 2026, bringing gross proceeds to $2.0 billion and outstanding shares to 100.6 million
$1.0 billion senior secured revolving credit facility with Citibank, N.A., as administrative agent, which can be increased to $4.0 billion, subject to conditions
Charter and Amended and Restated Bylaws took effect May 13, 2026
Patterson-UTI Energy completed a $500 million offering of 6.050% Senior Notes due 2036 on May 19, 2026. The company plans to use the net proceeds to redeem its 3.95% Senior Notes due 2028 and for general corporate purposes, which changes the mix and cost of its debt.
Notes: $500 million aggregate principal, 6.050% interest, maturing May 15, 2036
Interest payable May 15 and November 15 each year
Proceeds intended to redeem outstanding 3.95% Senior Notes due 2028 and for general corporate purposes
Notes are senior unsecured; none of the subsidiaries are currently required to guarantee them
Pitney Bowes amended its Credit Agreement on May 18, 2026, extending the maturity of its revolving credit facility and term loan A by five years and changing other covenants and terms. The company said total loans outstanding were unchanged, and the filing sets tighter leverage limits that step down over time, so the change matters for shareholders mainly as a refinancing and a set of new covenant requirements.
Maturity of the $450 million revolving credit facility and $152 million term loan A extended to May 2031
Total loans outstanding under the Credit Agreement unchanged as of the amendment date
Total net leverage limit steps down from 4.75 to 1.00 in 2026 to 4.00 to 1.00 from March 31, 2029; interest coverage minimum 2.00 to 1.00
Fitch initiated coverage with a BB- Long-Term Issuer Default Rating and Stable Outlook
Two indirect subsidiaries of Innovative Industrial Properties, IIP-MA 7 LLC and IIP-PA 6 LLC, entered into separate secured loan agreements with Amalgamated Bank on May 18, 2026, totaling $22.9 million. The loans are secured by first priority liens on the borrowers' properties, and the parent company provided unsecured guaranties for both loans, so the company has taken on added debt obligations.
IIP-MA 7 LLC received a $10.5 million secured term loan and IIP-PA 6 LLC received a $12.4 million secured term loan.
Both loans bear a fixed interest rate of 6.67% per year, with monthly principal and interest payments on a 25-year amortization schedule starting July 5, 2026.
The loans mature on June 5, 2031, and carry a prepayment premium declining from 5% in the first year to 1% in the fifth year.
Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.
Briefs marked “Written later” were written in November 2026 for filings that were by then more than three weeks old, so months before mid-October 2026 hold a selection: every material 8-K of the past year for the 100 largest companies we cover and the last 15 important 8-Ks of every other one. Briefs the number check holds back are not shown or counted. Also: the last 45 days, briefs by company, A–Z and the live SEC filings wire.