---
schema_version: "secwatch.filing_event.v1"
accession: "0001829126-26-002413"
form_type: "8-K"
ticker: "BKHA"
cik: "0002000775"
company_name: "Black Hawk Acquisition Corp"
filed_at: "2026-03-17T23:59:59+00:00"
generated_at: "2026-05-15T11:03:41.046030+00:00"
event_type: "leadership"
sentiment: "positive"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Vesicor Therapeutics appoints Michael Tolentino as CEO; Luo Feng becomes CSO

## Summary
- Michael Tolentino, M.D., appointed CEO of Vesicor Therapeutics, the de-SPAC target of Black Hawk Acquisition (Nasdaq: BKHA, BKHAU, BKHAR), effective March 17, 2026.
- Tolentino succeeds founder Luo Feng, who becomes Chief Scientific Officer; Tolentino brings 20+ years biotech experience including inventing Avastin and co-founding Aviceda ($207.5M Series C).
- Employment agreement: 3-year term, $48k base salary (subject to increase if Vesicor raises $5M), severance of 2x salary plus bonus, non-compete for 1 year post-termination.
- Tolentino aims to accelerate IND-enabling studies and FDA submission for Vesicor's p53-based cancer therapeutics developed with precision-engineered microvesicles.
- Tolentino also serves as co-founder/CEO of Avdarna Therapeutics and co-founder/CDO of Aikium; he previously led Acuity Pharmaceuticals (merged into OPKO Health).

## SEC filing metadata
- accession: 0001829126-26-002413
- form_type: 8-K
- ticker: BKHA
- cik: 0002000775
- company_name: Black Hawk Acquisition Corp
- filed_at: 2026-03-17T23:59:59+00:00
- event_type: leadership
- sentiment: positive
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2000775/000182912626002413/0001829126-26-002413-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2000775/000182912626002413/blackhawkacq_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001829126-26-002413
- JSON: https://secwatch.observer/filing/0001829126-26-002413.json
- Plain text: https://secwatch.observer/filing/0001829126-26-002413.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.