---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-25-016309"
form_type: "8-K"
ticker: "ISPC"
cik: "0001558569"
company_name: "iSpecimen Inc."
filed_at: "2025-02-24T23:59:59+00:00"
generated_at: "2026-05-26T05:48:51.451707+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# iSpecimen appoints Katharyn Field as President; Siyun Yang joins board

## Summary
- Katharyn Field appointed President effective immediately; resigned from Board.
- Siyun Yang appointed independent director, serving on Audit and Nominating committees, replacing Field.
- Richard Paolone appointed Chair of the Board, replacing Field.
- CEO Robert Bradley Lim remains; company does not anticipate operational disruption.
- Compensation terms for Field as President not yet finalized; will be disclosed later.

## SEC filing metadata
- accession: 0001213900-25-016309
- form_type: 8-K
- ticker: ISPC
- cik: 0001558569
- company_name: iSpecimen Inc.
- filed_at: 2025-02-24T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1558569/000121390025016309/0001213900-25-016309-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1558569/000121390025016309/ea0231832-8k_ispecimen.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-25-016309
- JSON: https://secwatch.observer/filing/0001213900-25-016309.json
- Plain text: https://secwatch.observer/filing/0001213900-25-016309.txt

## Key facts
- Executive change
  Richard Paolone was appointed as Chair of the Board at iSpecimen Inc..
  - Action: appointed
  - Role: Chair of the Board
  source text: Additionally, the Board appointed Mr. Richard Paolone as Chair of the Board, replacing Ms. Field in this role.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1558569/000121390025016309/0001213900-25-016309-index.htm
- Executive change
  Siyun Yang was appointed as Director at iSpecimen Inc..
  - Action: appointed
  - Role: Director
  source text: Ms. Siyun Yang was appointed as an independent director to fill the resulting vacancy, effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1558569/000121390025016309/0001213900-25-016309-index.htm
- Executive change
  Katharyn Field was appointed as President at iSpecimen Inc..
  - Action: appointed
  - Role: President
  source text: On February 19, 2025, the Board of Directors (the “Board”) of iSpecimen Inc. (the “Company”) appointed Ms. Katharyn Field as President of the Company, effective immediately. In connection with her appointment, Ms. Field resigned as a member of the Board
  evidence_url: https://www.sec.gov/Archives/edgar/data/1558569/000121390025016309/0001213900-25-016309-index.htm

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