person · Reporting owner
Steinberg Jeremy Rayne
Disclosed activity across 4 companies
Sign in to followReported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| Arca U.S. Treasury FundNONE · Entity 85663 | Principal Financial Officer · CEO | July 06, 2020 | July 23, 2020 |
| Boost Run Inc.BRUN · Entity 4769 | Director | May 12, 2026 | June 16, 2026 |
| Willow Lane Acquisition Corp.WLAC · Entity 48053 | Director | November 07, 2024 | November 07, 2024 |
| Willow Lane Acquisition Corp. IIWLIIU · Entity 6090 | Director | February 12, 2026 | February 13, 2026 |
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.
Arca U.S. Treasury Fund
Report date July 06, 2020 · Filed July 23, 2020
This filing explicitly reported no securities owned.
Boost Run Inc.
Report date May 12, 2026 · Filed June 16, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Class A Common StockSEC Table I · non-derivative | Direct | 25,375 |
Reported balance
After 2026-05-12 transaction · row 1
1 source rowRow 1 · 2026-05-12 · Exercise / conversion · Acquired 25,375 · Balance 25,375 F1: Shares acquired were received as member distributions from Willow Lane Sponsor, LLC (the "Sponsor"). |
Filing footnotes · ownership attribution and instrument terms
F1: Shares acquired were received as member distributions from Willow Lane Sponsor, LLC (the "Sponsor").
Willow Lane Acquisition Corp.
Report date November 07, 2024 · Filed November 07, 2024
This filing explicitly reported no securities owned.
Willow Lane Acquisition Corp. II
Report date February 12, 2026 · Filed February 13, 2026
This filing explicitly reported no securities owned.
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 |
|---|---|---|---|---|---|---|
| May 12, 2026 Filed Jun 16, 2026 20:31 UTC | Boost Run Inc. BRUN · Entity 4769 | Exercise / conversionClass A Common Stock | 25,375 | $0.00 | $0.00 |
DisclosureSEC source: 0001493152-26-028900 · ownership.xml · nonDerivative · entry 1 Steinberg Jeremy Rayne · CIK 0001818866 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 25,375 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: Shares acquired were received as member distributions from Willow Lane Sponsor, LLC (the "Sponsor"). 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.