---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-22-101344"
form_type: "8-K"
ticker: "SRRK"
cik: "0001727196"
company_name: "Scholar Rock Holding Corp"
filed_at: "2022-09-20T23:59:59+00:00"
generated_at: "2026-06-23T08:34:05.625174+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Scholar Rock names Jay Backstrom as CEO; founder Mahanthappa to exit Oct 20

## Summary
- Jay Backstrom appointed CEO-Elect Sept 20; assumes President & CEO and board seat Oct 20, 2022.
- Founding CEO Nagesh Mahanthappa resigns as Interim CEO and President effective Oct 20; role as strategic advisor.
- Backstrom gets $600K base salary, 60% bonus target, and inducement option for 1,000,000 shares.
- Backstrom previously EVP R&D at Acceleron (acquired by Merck); led TGFβ therapies REBLOZYL and sotatercept.

## SEC filing metadata
- accession: 0001104659-22-101344
- form_type: 8-K
- ticker: SRRK
- cik: 0001727196
- company_name: Scholar Rock Holding Corp
- filed_at: 2022-09-20T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1727196/000110465922101344/0001104659-22-101344-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1727196/000110465922101344/tm2226156d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-22-101344
- JSON: https://secwatch.observer/filing/0001104659-22-101344.json
- Plain text: https://secwatch.observer/filing/0001104659-22-101344.txt

## Key facts
- Executive change
  Nagesh Mahanthappa departed as Interim Chief Executive Officer and President at Scholar Rock Holding Corp.
  - Action: resigning
  - Role: Interim Chief Executive Officer and President
  source text: Nagesh Mahanthappa was resigning as the Company’s Interim Chief Executive Officer and President and as a member of the Board.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1727196/000110465922101344/0001104659-22-101344-index.htm
- Executive change
  Jay Backstrom was appointed as President & Chief Executive Officer at Scholar Rock Holding Corp.
  - Action: appointed
  - Role: President & Chief Executive Officer
  source text: appointed Dr. Jay Backstrom as Chief Executive Officer-Elect effective as of September 20, 2022.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1727196/000110465922101344/0001104659-22-101344-index.htm

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