Eric Mosbrooker

CIK 1715283 · Chief Commercial Officer · last filed 2026-02-27

Eric Mosbrooker is a Chief Commercial Officer who has filed 13 SEC Form 4 insider transactions across 4 companies since 2017. The most recent filing, for RNAM, was dated Feb 27, 2026. Across all open-market trades the lifetime net is −$6.4M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.1M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$1.12M

Companies

4

Total Filings

13

Lifetime Open-Market Net

-$6.37M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
Avidity Biosciences, Inc. (RNAM) Delisted Chief Commercial Officer 0 $0 1 2026-02-27
RNA Chief Commercial Officer 90,436 $12.37 $1.12M -$6.37M 8 2025-12-19
BOLD SVP, Chief Commercial Officer 0 $1.41 $0 $0 3 2020-01-15
Horizon Therapeutics Public Ltd Co (HZNP) Delisted SVP, Orphan Business Unit 5,900 $116.30 $686.2K $0 1 2017-11-02

Recent Filings

13 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2026-02-27 Avidity Biosciences, Inc. (RNAM) Delisted Disp (D) −79,413 $0 EDGAR
2025-12-19 RNA Mixed +24,010 -$3.45M EDGAR
2025-10-07 RNA Mixed -$238.4K EDGAR
2025-09-05 RNA Mixed -$249.5K EDGAR
2025-08-08 RNA Mixed −6,120 -$4.64M EDGAR
2025-01-08 RNA Grant (A) +25,000 $0 EDGAR
2023-06-20 RNA Grant (A) $0 EDGAR
2022-06-17 RNA Grant (A) $0 EDGAR
2021-08-27 RNA Grant (A) $0 EDGAR
2020-01-15 BOLD Mixed −26,919 -$1.62M EDGAR
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Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.