1,853 material Form 8-K filings that 1,500 companies we cover made with the SEC in September 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).
Tortoise Energy Infrastructure Corporation entered into a distribution agreement with PINE Distributors LLC on September 22, 2026, allowing it to sell up to 2,500,000 common shares from time to time at market prices. UBS Securities LLC is a sub-placement agent under the arrangement. Because new shares would increase the share count, existing shareholders could see their ownership percentage diluted if the shares are sold.
Up to 2,500,000 common shares, $0.001 par value, may be sold through PINE Distributors LLC as agent.
UBS Securities LLC is the sub-placement agent under an agreement dated September 22, 2026.
The offering uses a shelf registration statement filed May 8, 2026, with a prospectus supplement dated September 22, 2026.
The filing does not state the price, proceeds, or timing of any sales.
On September 16 and 22, 2026, RTB Digital entered into agreements to sell 494,159 restricted shares of common stock at $11.13 per share, for gross proceeds of $5.5 million, to investors that include entities affiliated with its founders and principal stockholders. In the same period, the company agreed to lend $5.5 million to borrowers at 20% per annum, secured by equity the borrowers own. Shareholders should note the share lock-up schedule, which releases the new shares in four 25% tranches from May 2027 to February 2028.
494,159 shares at $11.13 per share, $5.5 million gross proceeds, sold under Regulation 506(b) without a broker-dealer.
Investors include persons and entities affiliated with founders and principal stockholders.
Lock-up releases of 25% each on May 12, 2027, August 12, 2027, November 12, 2027, and February 14, 2028.
Company lent $5.5 million to borrowers at 20% per annum; the 8-K signature block names RYVYL Inc. rather than RTB Digital.
On September 17, 2026, Calidi Biotherapeutics agreed to sell 1,025,640 common shares at $1.17 per share in a registered direct offering, which closed September 21, 2026, with gross proceeds of approximately $1.2 million before offering expenses. The company plans to use the net proceeds for working capital and general corporate purposes. The share sale increases the number of shares outstanding, and the company agreed not to issue additional equity for 45 days after closing.
1,025,640 shares sold at $1.17 per share, for gross proceeds of approximately $1.2 million before offering expenses.
Offering closed September 21, 2026; no underwriter or placement agent was engaged, and no underwriting discounts or commissions were paid.
Company agreed not to issue or sell equity or equity-linked securities for 45 days after closing, without consent of holders of more than 50% of the shares sold.
Directors and executive officers agreed to 60-day lock-up agreements, subject to customary exceptions.
LandBridge subsidiary DBR Land Holdings priced an upsized $125 million offering of additional 6.250% senior notes due 2030 at 99.375% of par. The company plans to use the net proceeds to repay part of its revolving credit facility, with closing expected October 1, 2026, subject to customary conditions. The filing covers debt financing only and includes no earnings or guidance information.
Priced $125 million of 6.250% senior notes due 2030 at 99.375% of par, upsized from the previously announced $100 million.
New notes are additional notes under the November 25, 2025 indenture and have identical terms to the $500 million of existing notes.
Offering expected to close October 1, 2026; proceeds to repay a portion of revolving credit facility borrowings.
Halozyme Therapeutics completed the sale of $1,500.0 million of 1.50% Convertible Senior Notes due 2033 on September 22, 2026, including $200.0 million from the initial purchasers' option. The company received net proceeds of approximately $1,471.1 million and plans to use part of them to repurchase existing 2027 and 2028 convertible notes, which adds new debt while potentially reducing older debt.
$1,500.0 million aggregate principal of 1.50% Convertible Senior Notes due 2033 sold, including a $200.0 million option exercise
Net proceeds of approximately $1,471.1 million, with $187.5 million used to fund capped call transactions
Expected repurchases of about $217.0 million of 2027 Notes and about $435.5 million of 2028 Notes, including accrued interest
Initial conversion price of approximately $139.84 per share; interest paid semi-annually starting April 1, 2027
Energy Vault's indirect subsidiary Development Vault, LLC signed an amended and restated financing agreement on September 18, 2026 for a senior secured delayed draw term loan with up to $25 million in commitments. The loans carry a 10.0% cash interest rate plus a 7.0% payment-in-kind deferred rate, and the filing says $18 million is outstanding and the facility matures April 16, 2030, with the loans secured by substantially all of the borrower's assets.
Facility commitments of up to $25,000,000, with $18 million outstanding as of the A&R Effective Date
Interest of 10.0% per annum payable in cash, plus a 7.0% per annum deferred rate payable in kind
Matures April 16, 2030; proceeds may fund battery energy storage project acquisitions, sponsor equity and project expenses
Secured by a first priority interest in substantially all assets of the borrower and subsidiary guarantors
Group 1 Automotive closed a private offering of $1.25 billion in senior notes due 2032 and 2035, with net proceeds of about $1,236.0 million. The company plans to use the proceeds, with cash on hand, to fund its pending acquisition of dealership assets and real estate from Hennessy Automobile Companies. The notes add long-term debt, and if the Hennessy deal does not close by the outside date, the 2032 notes must be redeemed at par plus interest.
Two tranches of $625.0 million each: 6.250% notes due February 1, 2032 and 6.625% notes due February 1, 2035
Net proceeds of approximately $1,236.0 million after discounts, commissions and estimated expenses
Hennessy Acquisition must close by January 6, 2027, or the 2032 notes face a special mandatory redemption at 100% of issue price plus accrued interest
LeonaBio disclosed that its Series A Common Warrants, issued in December 2025 in a private placement, became exercisable on September 18, 2026 and remain exercisable until October 19, 2026. If all warrants are exercised for cash, the company would receive approximately $146.2 million, but the filing warns that some may expire unexercised or be exercised on a cashless basis if the resale registration statement is not effective, which would bring in less or no cash.
Warrants cover 23,031,494 common shares at an exercise price of $6.35 per share.
Warrants became exercisable September 18, 2026 and expire to exercise after October 19, 2026.
Full cash exercise would provide approximately $146.2 million of additional capital.
On September 22, 2026, CoreWeave completed a private offering of $4.2 billion in 2.875% convertible senior notes due April 1, 2033, including $500 million from the full exercise of the initial purchasers' option. The notes are senior unsecured obligations, guaranteed by certain subsidiaries, and can be settled in cash, shares or a combination, at CoreWeave's election. For shareholders, the notes add debt and could dilute holders on conversion, with up to 52,578,540 shares issuable at the maximum conversion rate, while capped call transactions are intended to reduce that dilution.
Notes total $4.2 billion, including $500 million from the full exercise of the initial purchasers' option; they bear 2.875% interest, payable April 1 and October 1, beginning April 1, 2027.
Initial conversion price is approximately $97.85 per share, a premium of about 22.50% over the September 17, 2026 last reported sale price of $79.88.
A maximum of 52,578,540 Class A shares may be issued on full conversion, based on the maximum conversion rate of 12.5187 shares per $1,000 principal amount.
CoreWeave may redeem the notes for cash from April 5, 2030 under certain conditions; holders may require repurchase at par plus accrued interest after a fundamental change.
Tenet Healthcare issued $2 billion of 6.250% senior notes due 2034 on September 22, 2026. The company plans to use the net proceeds, with cash on hand, to redeem its $1.5 billion of 5.125% secured notes due 2027 and partly redeem $0.5 billion of its 6.125% notes due 2028. The deal refinances existing debt, and the filing does not state a change in total debt outstanding.
Issued $2,000,000,000 of 6.250% senior notes due 2034 on September 22, 2026
Proceeds, with cash on hand, to fund redemption of all $1.5 billion of 5.125% senior secured first lien notes due November 2027
Partial redemption of $0.5 billion of 6.125% senior notes due October 2028
Notes are redeemable at a make-whole premium before September 15, 2029, and at set redemption prices after that date
Agree Limited Partnership, a subsidiary of Agree Realty Corporation, completed a $400 million underwritten offering of 5.650% notes maturing October 15, 2036, with the parent and certain subsidiaries guaranteeing the debt. The offering closed September 22, 2026 with net proceeds of approximately $390.1 million after the underwriting discount and estimated expenses, adding to the company's debt load.
Notes: $400 million principal, 5.650% interest, maturing October 15, 2036
Underwriters paid 97.847% of principal; offering closed September 22, 2026
Estimated net proceeds to the issuer of approximately $390.1 million
Indenture includes limits on additional indebtedness and a requirement to maintain unencumbered assets
Wynn Resorts' subsidiaries issued $900 million of 6.875% senior notes maturing March 15, 2035, under an indenture dated September 22, 2026. Net proceeds, with cash on hand, will redeem the 5.250% senior notes due 2027 of Wynn Las Vegas, LLC, and pay issuance fees and expenses. The filing describes new debt replacing a smaller existing obligation, with covenants limiting sale-leasebacks, liens and mergers.
Notes: $900 million aggregate principal, 6.875%, maturing March 15, 2035
Proceeds plus cash on hand to redeem in full the 5.250% senior notes due 2027 of Wynn Las Vegas, LLC
Interest paid semi-annually on March 15 and September 15, starting March 15, 2027
Change of control repurchase price is 101% of principal plus accrued interest
On September 16, 2026, SCWorx closed a private placement of 350,000 shares of common stock, each sold with a warrant, to ten accredited investors at $2.68 per share and warrant, for gross proceeds of $938,000 before offering expenses. The filing says the company's shares are not currently trading on The Nasdaq Capital Market, and if trading does not resume by October 31, 2026, purchasers can require the company to return their subscription amounts, which would reverse the sale.
350,000 shares and 350,000 warrants sold at $2.68 per share and accompanying warrant; gross proceeds $938,000; closed September 16, 2026.
Warrants have an exercise price of $2.56 per share, are exercisable immediately and expire on the fifth anniversary of the initial exercise date.
Placement agent Dawson James Securities receives 49,860 fee shares and a cash fee of 5.0% of gross proceeds, plus expenses up to $50,000.
Purchasers may require cash repayment of their subscription amounts if the stock does not resume trading on Nasdaq by October 31, 2026.
Heritage Global Inc. entered into a $10.0 million revolving line of credit with C3bank, National Association, on September 16, 2026, maturing January 16, 2028. The facility is secured by company and subsidiary assets and a pledge of subsidiary equity, and carries restrictions on additional borrowing and asset encumbrance.
Revolving line of credit of $10.0 million with C3bank, National Association, dated September 16, 2026
Maturity date of January 16, 2028; interest at prime rate plus 1.00%, with a floor of 7.500% per annum
Secured by company and subsidiary assets and a pledge of subsidiary equity; proceeds limited to business operations
Full agreements to be filed as exhibits to the Form 10-Q for the quarter ended September 30, 2026
Hennessy Capital Investment Corp. VII (HVII) and ONE Nuclear entered into a forward purchase agreement dated September 22, 2026, with New Circle Capital Solutions LP, tied to their pending business combination. The filing says the final redemption payment and per-share price cannot be determined until the combination closes, and it links the deal to HVII shareholder redemption requests.
New Circle may buy up to 5,000,000 HVII Class A ordinary shares from third parties and will be prepaid an amount equal to the shares multiplied by the per-share redemption price at closing.
The prepayment is due on the earlier of one business day after closing or the date trust account assets are disbursed for the combination.
As of September 18, 2026, the redemption price was approximately $10.60 per share, and shareholders had submitted requests to redeem 18,796,132 shares.
The agreement matures 90 days after the business combination closes, unless extended in writing.
Brand Engagement Network agreed on September 21, 2026 to sell 123,650 common shares at $8.50 each in a private placement for $1,051,025 gross, a premium of more than 20% to the $7.07 close on September 21. Only $150,025 is funded at the initial closing, with the remaining $901,000 due in five monthly installments through February 5, 2027, and the buyers also receive six-month warrants at $8.50 for up to 123,650 more shares, so shareholders face dilution if the deal is completed.
123,650 shares at $8.50 per share, $1,051,025 gross, sold equally to BEN Capital Fund I, LLC and Joseph Bevash
$150,025 (17,650 shares) funded at the initial closing; $901,000 due in five monthly installments of $180,200 from October 5, 2026 to February 5, 2027
Common warrants with 100% coverage, a $8.50 exercise price and a six-month term, exercisable for up to 123,650 shares if fully funded
Sold under Securities Act private placement exemptions, with piggy-back registration rights on the next Form S-1
Columbus McKinnon amended its credit agreement on September 21, 2026, refinancing its $1,452.9 million Term Loan B and reducing the interest rate margin on both the term loan and its $500 million revolver by 0.50% per annum. The company expects the change to cut annual cash interest expense by at least $7.3 million, which would give shareholders a modest boost to cash flow, though the filing contains no new earnings figures.
Term Loan B refinanced in an aggregate principal amount of $1,452.9 million, with margin reduced by 0.50% per annum
Revolving Facility margin also reduced by 0.50%; dollar term SOFR margin now ranges from 1.75% to 2.75% based on leverage
Company expects annual cash interest expense to fall by at least $7.3 million; maturity dates unchanged
Amendment signed September 21, 2026 and announced in a September 22, 2026 press release
Blackstone-affiliated funds, the current majority owners of Jersey Mike's Subs Inc., have entered into margin loan agreements providing approximately $1.09 billion in aggregate borrowings, secured by pledged company shares and units. If the Blackstone borrowers default, the lenders may foreclose on the pledged shares and units, which the filing says represent about 54.3% of Class A common stock on an as-exchanged basis. The company is not a party to the loans but has agreed not to take actions intended to materially hinder lender remedies.
Loan agreements dated September 16, 2026 provide for approximately $1.09 billion in aggregate borrowings with Morgan Stanley Senior Funding, Inc. as administrative agent
Pledged collateral includes 127,631,450 Class A shares, 44,990,370 Class B shares and 44,990,370 Jersey Mike's HoldCo common units
Pledged collateral represents approximately 54.3% of Class A common stock, assuming exchange of all outstanding common units
Company is not a party to the loan documents and says it did not independently verify the disclosure
Henry Schein amended and restated its existing $1 billion revolving credit agreement on September 21, 2026, increasing commitments to $1.25 billion and extending the termination date to September 19, 2031. The company plans to use the facility for working capital, general corporate purposes, capital expenditures, stock repurchases, debt refinancing and potential acquisitions.
Revolving commitments increased from $1 billion to $1.25 billion
Termination date extended to September 19, 2031
Agreement signed September 21, 2026, amending a credit agreement dated June 6, 2025
JPMorgan Chase Bank, N.A. is administrative agent; the filing lists several co-agents and lenders
On September 18, 2026, Aon and its subsidiaries signed two credit agreements with Citibank as administrative agent: $4 billion of delayed draw term loans, available at the closing of the USI Acquisition, and a $3 billion unsecured revolving credit facility. The term loans will help pay part of the cash consideration for USI under the merger agreement dated August 30, 2026, and the revolver replaces two $1 billion facilities that were terminated.
Term loans total $4 billion: $2 billion maturing September 18, 2028 and $2 billion maturing September 18, 2029, both prepayable without penalty.
Term loan proceeds will fund part of the cash consideration for the USI Acquisition and related fees and expenses.
The $3 billion revolver matures September 18, 2031, subject to optional one-year extensions, and replaces two $1 billion facilities terminated effective September 18, 2026.
Post-acquisition leverage covenant is up to 4.75 to 1.00 (funded net debt to adjusted EBITDA), stepping down to 3.50 to 1.00 over eight fiscal quarters.
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.