organization · Reporting owner
Wellington Hadley Harbor Aggregator IV, L.P.
Disclosed activity across 1 company
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Latest disclosed role at each company.
No relationships currently tracked through insider filings.
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
No balances currently tracked through insider filings.
Past disclosures · reporting ended (1)
No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.
Beta Bionics, Inc.
Report date January 31, 2025 · Filed February 03, 2025
Section 16 reporting ended · disclosed 2025-02-03. Current position is not established by this disclosure.
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 3,901,599 |
Ending reported balance
After 2025-01-31 transaction · row 2
2 source rows · reconciled sequenceRow 1 · 2025-01-31 · Conversion · Acquired 2,901,599 · Balance 2,901,599 F1: Immediately prior to the closing of the initial public offering, each share of Series E Preferred Stock (the "Preferred Stock") was converted into an equal number of shares of Class B Common Stock and subsequently was converted into an equal number of shares of Common Stock without payment of further consideration. The Preferred Stock had no expiration date. Row 2 · 2025-01-31 · Purchase · Acquired 1,000,000 · Balance 3,901,599 F2: Shares acquired in a private placement pursuant to the terms of a Common Stock Purchase Agreement dated January 21, 2025. |
| Series E Preferred StockSEC Table II · derivative / convertible security | Direct | 0 |
Reported balance
After 2025-01-31 transaction · row 3
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 3 · 2025-01-31 · Conversion · Disposed 2,901,599 · Balance 0 F1: Immediately prior to the closing of the initial public offering, each share of Series E Preferred Stock (the "Preferred Stock") was converted into an equal number of shares of Class B Common Stock and subsequently was converted into an equal number of shares of Common Stock without payment of further consideration. The Preferred Stock had no expiration date. |
Filing footnotes · ownership attribution and instrument terms
F1: Immediately prior to the closing of the initial public offering, each share of Series E Preferred Stock (the "Preferred Stock") was converted into an equal number of shares of Class B Common Stock and subsequently was converted into an equal number of shares of Common Stock without payment of further consideration. The Preferred Stock had no expiration date.
F2: Shares acquired in a private placement pursuant to the terms of a Common Stock Purchase Agreement dated January 21, 2025.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| January 31, 2025 Filed Feb 3, 2025 16:49 UTC | Beta Bionics, Inc. BBNX · Entity 2350 | ConversionSeries E Preferred Stock · Derivative | 2,901,599 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-25-012403 · ownership.xml · derivative · entry 3 Wellington Hadley Harbor Aggregator IV, L.P. · CIK 0002053997 · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 2,901,599 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Immediately prior to the closing of the initial public offering, each share of Series E Preferred Stock (the "Preferred Stock") was converted into an equal number of shares of Class B Common Stock and subsequently was converted into an equal number of shares of Common Stock without payment of further consideration. The Preferred Stock had no expiration date. F1 · derivative.exercise_date: Immediately prior to the closing of the initial public offering, each share of Series E Preferred Stock (the "Preferred Stock") was converted into an equal number of shares of Class B Common Stock and subsequently was converted into an equal number of shares of Common Stock without payment of further consideration. The Preferred Stock had no expiration date. F1 · derivative.expiration_date: Immediately prior to the closing of the initial public offering, each share of Series E Preferred Stock (the "Preferred Stock") was converted into an equal number of shares of Class B Common Stock and subsequently was converted into an equal number of shares of Common Stock without payment of further consideration. The Preferred Stock had no expiration date. Read SEC document |
| January 31, 2025 Filed Feb 3, 2025 16:49 UTC | Beta Bionics, Inc. BBNX · Entity 2350 | PurchaseCommon Stock | 1,000,000 | $17.00 | $17,000,000.00 |
DisclosureSEC source: 0000950170-25-012403 · ownership.xml · nonDerivative · entry 2 Wellington Hadley Harbor Aggregator IV, L.P. · CIK 0002053997 · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,901,599 F2 · shares: Shares acquired in a private placement pursuant to the terms of a Common Stock Purchase Agreement dated January 21, 2025. Read SEC document |
| January 31, 2025 Filed Feb 3, 2025 16:49 UTC | Beta Bionics, Inc. BBNX · Entity 2350 | ConversionCommon Stock | 2,901,599 | Not disclosed | Not disclosed |
DisclosureSEC source: 0000950170-25-012403 · ownership.xml · nonDerivative · entry 1 Wellington Hadley Harbor Aggregator IV, L.P. · CIK 0002053997 · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,901,599 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Immediately prior to the closing of the initial public offering, each share of Series E Preferred Stock (the "Preferred Stock") was converted into an equal number of shares of Class B Common Stock and subsequently was converted into an equal number of shares of Common Stock without payment of further consideration. The Preferred Stock had no expiration date. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.