---
schema_version: "secwatch.filing_event.v1"
accession: "0001157523-21-000978"
form_type: "8-K"
ticker: "SRRK"
cik: "0001727196"
company_name: "Scholar Rock Holding Corp"
filed_at: "2021-08-03T23:59:59+00:00"
generated_at: "2026-06-29T23:27:51.212819+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Scholar Rock CEO Tony Kingsley departs; founder Nagesh Mahanthappa appointed Interim CEO

## Summary
- CEO Tony Kingsley left Scholar Rock and the Board on July 29; departure not due to any disagreement.
- Founder Nagesh Mahanthappa (former CEO) appointed Interim CEO and Board member effective July 30.
- Board has initiated a search for a permanent CEO; Mahanthappa will serve until a successor is named.
- Mahanthappa receives $538,200 annual base salary, 55% bonus target, and accelerated equity vesting if terminated before Feb 28, 2022.
- Company highlights upcoming Phase 3 trial for apitegromab in SMA and DRAGON Phase 1 trial for SRK-181.

## SEC filing metadata
- accession: 0001157523-21-000978
- form_type: 8-K
- ticker: SRRK
- cik: 0001727196
- company_name: Scholar Rock Holding Corp
- filed_at: 2021-08-03T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1727196/000115752321000978/0001157523-21-000978-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1727196/000115752321000978/a52470483.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001157523-21-000978
- JSON: https://secwatch.observer/filing/0001157523-21-000978.json
- Plain text: https://secwatch.observer/filing/0001157523-21-000978.txt

## Key facts
- Executive change
  Nagesh Mahanthappa was appointed as Member of the Board of Directors at Scholar Rock Holding Corp.
  - Action: appointed
  - Role: Member of the Board of Directors
  source text: and appointed Dr. Mahanthappa to serve as a member of the Board
  evidence_url: https://www.sec.gov/Archives/edgar/data/1727196/000115752321000978/0001157523-21-000978-index.htm
- Executive change
  Stuart Kingsley departed as Member of the Board of Directors at Scholar Rock Holding Corp.
  - Action: ended service
  - Role: Member of the Board of Directors
  source text: On July 29, 2021, Stuart Kingsley’s employment as the Chief Executive Officer and President of Scholar Rock Holding Corporation (the “Company”) ended, as did his service on the Company’s Board of Directors (the “Board”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1727196/000115752321000978/0001157523-21-000978-index.htm
- Executive change
  Nagesh Mahanthappa was appointed as Interim Chief Executive Officer and President at Scholar Rock Holding Corp.
  - Action: appointed
  - Role: Interim Chief Executive Officer and President
  source text: On July 30, 2021, the Board appointed Nagesh Mahanthappa, the Company’s former Chief Executive Officer and President, as Interim Chief Executive Officer and President of the Company
  evidence_url: https://www.sec.gov/Archives/edgar/data/1727196/000115752321000978/0001157523-21-000978-index.htm
- Executive change
  Stuart Kingsley departed as Chief Executive Officer and President at Scholar Rock Holding Corp.
  - Action: ended employment
  - Role: Chief Executive Officer and President
  source text: On July 29, 2021, Stuart Kingsley’s employment as the Chief Executive Officer and President of Scholar Rock Holding Corporation (the “Company”) ended, as did his service on the Company’s Board of Directors (the “Board”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1727196/000115752321000978/0001157523-21-000978-index.htm

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