Michael H. Ambrose

CIK 1793160 · last filed 2025-06-20

Michael H. Ambrose is a corporate insider who has filed 14 SEC Form 4 insider transactions across 4 companies since 2019. The most recent filing, for RBC, was dated Jun 20, 2025. Across all open-market trades the lifetime net is −$1.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $4.2M 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.

Loading insider history…
Disclosed Exposure

$4.22M

Companies

4

Total Filings

14

Lifetime Open-Market Net

-$1.59M

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
RBC Director 6,985 $603.64 $4.22M -$1.01M 4 2025-06-20
RBC Bearings INC (RBCP) Delisted Director 6,728 $123.98 $834.1K -$573.8K 6 2024-06-12
RBC Bearings INC (ROLLP) Delisted Director 6,000 $107.15 $642.9K $0 1 2022-06-17
RBC Bearings INC (ROLL) Delisted Director 4,500 $212.38 $955.7K $0 3 2021-06-07

Recent Filings

14 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2025-06-20 RBC Mixed −150 -$135.1K EDGAR
2025-06-10 RBC Mixed -$346.3K EDGAR
2025-06-03 RBC Grant (A) +532 $194.6K EDGAR
2025-02-05 RBC Mixed −125 -$79.8K EDGAR
2024-06-12 RBC Bearings INC (RBCP) Delisted Sell (S) −600 -$167.5K EDGAR
2024-05-31 RBC Bearings INC (RBCP) Delisted Grant (A) +678 $0 EDGAR
2024-01-02 RBC Bearings INC (RBCP) Delisted Mixed −150 -$65.4K EDGAR
2023-07-20 RBC Bearings INC (RBCP) Delisted Sell (S) −400 -$88.0K EDGAR
2023-06-07 RBC Bearings INC (RBCP) Delisted Grant (A) +1,200 $0 EDGAR
2022-11-18 RBC Bearings INC (RBCP) Delisted Mixed -$82.1K EDGAR
Showing 110 of 14
Page 1 of 2
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.