Home

Michael J Glosserman

CIK 1436265 · last filed 2026-05-01

Michael J Glosserman is a corporate insider who has filed 35 SEC Form 4 insider transactions across 2 companies since 2008. The most recent filing, for JBGS, was dated May 1, 2026. Across all open-market trades the lifetime net is −$9.0M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $3.3M 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

$3.25M

Companies

2

Total Filings

35

Lifetime Open-Market Net

-$8.95M

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
JBGS Director 15,660 $14.50 $227.1K -$7.92M 17 2026-05-01
CSGP Director 101,465 $29.80 $3.02M -$1.03M 18 2023-11-01

Recent Filings

35 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-05-01 JBGS Grant (A) — $0 EDGAR
2025-04-28 JBGS Grant (A) — $0 EDGAR
2024-04-29 JBGS Grant (A) — $0 EDGAR
2023-11-01 CSGP Grant (A) +3,913 $0 EDGAR
2023-06-30 JBGS Gift (G) — $0 EDGAR
2023-05-05 JBGS Grant (A) — $0 EDGAR
2022-09-15 CSGP Grant (A) +3,745 $0 EDGAR
2022-05-03 JBGS Grant (A) — $0 EDGAR
2021-09-17 CSGP Grant (A) +3,047 $271.0K EDGAR
2021-05-03 JBGS Grant (A) — $0 EDGAR
Showing 1–10 of 35
Page 1 of 4
Form 4 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.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.