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Bandwidth (NASDAQ: BAND) controller exercises RSUs and sells 1,198 shares

Filing Impact
(Neutral)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Bandwidth Inc. Controller and Principal Accounting Officer Devin M. Krupka reported recent equity transactions in the company’s Class A Common Stock. On May 28, 2026, he exercised Restricted Stock Units, converting a total of 4,293 shares of RSUs into common stock at a conversion price of $0.00 per share.

On May 29, 2026, Krupka then executed open-market sales totaling 1,198 shares of Class A Common Stock. Individual sales included 684 shares at $58.3693, 512 shares at $59.4771, and 2 shares at $60.00 per share, with footnotes stating that some trades were reported at weighted average prices within ranges from $57.88 to $59.75 per share. Following these transactions, he directly owns 26,371 shares of Bandwidth Class A Common Stock.

Positive

  • None.

Negative

  • None.
Insider Krupka Devin M
Role Controller, PAO
Sold 1,198 shs ($70K)
Type Security Shares Price Value
Sale Class A Common Stock 684 $58.3693 $40K
Sale Class A Common Stock 512 $59.4771 $30K
Sale Class A Common Stock 2 $60.00 $120.00
Exercise Restricted Stock Units 2,776 $0.00 --
Exercise Restricted Stock Units 1,517 $0.00 --
Exercise Class A Common Stock 2,776 $0.00 --
Exercise Class A Common Stock 1,517 $0.00 --
Holdings After Transaction: Class A Common Stock — 26,885 shares (Direct, null); Restricted Stock Units — 5,550 shares (Direct, null)
Footnotes (1)
  1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.88 to $58.88 The Reporting Person undertakes to provide Bandwidth Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $58.89 to $59.75. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Each Restricted Stock Unit represents a contingent right to receive one share of the Company's Class A Common Stock. On November 28, 2023, the Reporting Person was granted 33,303 Restricted Stock Units, one third of which vested on the first anniversary of the date of grant and the remaining shares vest in eight equal quarterly installments beginning on February 28, 2025. On November 28, 2024, the Reporting Person was granted 18,205 Restricted Stock Units, one third of which vested on the first anniversary of the date of grant and the remaining shares vest in eight equal quarterly installments beginning on February 28, 2026.
Total shares sold 1,198 shares Open-market sales on May 29, 2026
Sale price 1 $58.3693 per share 684 shares of Class A Common Stock
Sale price 2 $59.4771 per share 512 shares of Class A Common Stock
Sale price 3 $60.0000 per share 2 shares of Class A Common Stock
Shares from RSU exercises 4,293 shares Conversion of Restricted Stock Units on May 28, 2026
Post-transaction holdings 26,371 shares Class A Common Stock directly owned after May 29, 2026 sales
RSU grant 2023 33,303 RSUs Granted November 28, 2023 with staged vesting
RSU grant 2024 18,205 RSUs Granted November 28, 2024 with staged vesting
Restricted Stock Units financial
"Each Restricted Stock Unit represents a contingent right to receive one share of the Company's Class A Common Stock."
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
weighted average price financial
"The price reported in Column 4 is a weighted average price."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
open-market sale financial
"transaction_action": "open-market sale""
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
derivative security financial
"transaction_code_description": "Exercise or conversion of derivative security""
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
contingent right financial
"Each Restricted Stock Unit represents a contingent right to receive one share"
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SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Krupka Devin M

(Last)(First)(Middle)
C/O BANDWIDTH INC.
2230 BANDMATE WAY

(Street)
RALEIGH NORTH CAROLINA 27607

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Bandwidth Inc. [ BAND ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Controller, PAO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/28/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Class A Common Stock05/28/2026M2,776A$026,052D
Class A Common Stock05/28/2026M1,517A$027,569D
Class A Common Stock05/29/2026S684D$58.3693(1)26,885D
Class A Common Stock05/29/2026S512D$59.4771(2)26,373D
Class A Common Stock05/29/2026S2D$6026,371D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Units(3)05/28/2026M2,776 (4) (4)Class A Common Stock2,776$05,550D
Restricted Stock Units(3)05/28/2026M1,517 (5) (5)Class A Common Stock1,517$09,103D
Explanation of Responses:
1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.88 to $58.88 The Reporting Person undertakes to provide Bandwidth Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $58.89 to $59.75. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
3. Each Restricted Stock Unit represents a contingent right to receive one share of the Company's Class A Common Stock.
4. On November 28, 2023, the Reporting Person was granted 33,303 Restricted Stock Units, one third of which vested on the first anniversary of the date of grant and the remaining shares vest in eight equal quarterly installments beginning on February 28, 2025.
5. On November 28, 2024, the Reporting Person was granted 18,205 Restricted Stock Units, one third of which vested on the first anniversary of the date of grant and the remaining shares vest in eight equal quarterly installments beginning on February 28, 2026.
Remarks:
/s/ Leah Webb, Attorney-in-Fact for Devin M. Krupka06/01/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transactions did Bandwidth (BAND) officer Devin Krupka report?

Devin M. Krupka reported exercising Restricted Stock Units for 4,293 shares and then selling 1,198 shares of Bandwidth Class A Common Stock in open-market transactions. These trades occurred on May 28–29, 2026, according to the Form 4.

How many Bandwidth (BAND) shares did Devin Krupka sell and at what prices?

Krupka sold a total of 1,198 Bandwidth Class A shares. Reported sale prices included $58.3693, $59.4771, and $60.00 per share, with footnotes noting weighted average prices within ranges from $57.88 to $59.75 per share.

How many Bandwidth (BAND) shares does Devin Krupka hold after these transactions?

After the reported transactions, Krupka directly holds 26,371 shares of Bandwidth Class A Common Stock. This figure reflects his position following the May 29, 2026 open-market sales disclosed in the Form 4.

What Restricted Stock Unit activity did Bandwidth (BAND) disclose for Devin Krupka?

The Form 4 shows Krupka exercised Restricted Stock Units covering 1,517 and 2,776 units, each converting into one share of Bandwidth Class A Common Stock. In total, 4,293 RSUs were converted to common shares on May 28, 2026.

Were Devin Krupka’s Bandwidth (BAND) sales open-market transactions or tax withholding?

Krupka’s disposals are coded with transaction code “S,” described as sales in open market or private transactions. The filing does not use tax-withholding code “F,” indicating these sales are reported as open-market trades rather than shares withheld for taxes.

What do the Bandwidth (BAND) Form 4 footnotes say about Devin Krupka’s RSUs?

Footnotes explain each Restricted Stock Unit represents a contingent right to receive one Bandwidth Class A share. Grants on November 28, 2023 and November 28, 2024 vest one-third after one year, with remaining units vesting in eight equal quarterly installments starting February 28, 2025 and February 28, 2026, respectively.