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Mark G Barberio

CIK 1631948 · last filed 2026-05-18

Mark G Barberio is a corporate insider who has filed 35 SEC Form 4 insider transactions across 5 companies since 2015. The most recent filing shows the insider was granted $200.1K of EXR on May 18, 2026. Across all open-market trades the lifetime net is +$650.0K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $3.4M 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

$3.44M

Companies

5

Total Filings

35

Lifetime Open-Market Net

$650.0K

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
EXR Director 17,291 $152.67 $2.64M $0 5 2026-05-18
ROCK Director 18,403 $42.48 $781.8K $102.5K 11 2026-05-08
LIFE STORAGE, INC. (LSI) Delisted Director 0 $133.10 $0 $335.5K 13 2023-07-20
Endo International plc (ENDP) Delisted Director 38,187 $0.29 $11.2K $0 2 2021-06-15
SSS Director 1,115 $20.05 $22.4K $212.1K 4 2016-08-10

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
2026-05-18 EXR Grant (A) +1,407 $200.1K EDGAR
2026-05-08 ROCK Grant (A) +3,059 $115.0K EDGAR
2025-05-23 EXR Grant (A) +1,375 $199.9K EDGAR
2025-05-02 ROCK Grant (A) +2,172 $115.0K EDGAR
2024-05-28 EXR Grant (A) +1,402 $200.0K EDGAR
2024-05-02 ROCK Grant (A) +1,670 $115.0K EDGAR
2023-12-18 EXR Gift (G) — $0 EDGAR
2023-11-13 ROCK Gift (G) −2,700 $0 EDGAR
2023-07-21 EXR Grant (A) +21,163 $0 EDGAR
2023-07-20 LIFE STORAGE, INC. (LSI) Delisted Disp (D) −23,647 $0 EDGAR
Showing 1–10 of 35
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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.