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MARK L BAUM

CIK 1274282 · CHIEF EXECUTIVE OFFICER · last filed 2026-05-15

MARK L BAUM is a CHIEF EXECUTIVE OFFICER who has filed 47 SEC Form 4 insider transactions across 6 companies since 2013. The most recent filing shows the insider bought $302.0K of HROW on May 15, 2026. Across all open-market trades the lifetime net is +$1.0M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $176.7M 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

$176.70M

Companies

6

Total Filings

47

Lifetime Open-Market Net

$1.04M

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
HROW CHIEF EXECUTIVE OFFICER 3,594,256 $38.84 $139.60M $302.0K 10 2026-05-15
HARROW, INC. (HROWM) Delisted CHIEF EXECUTIVE OFFICER 3,199,462 $26.03 $83.28M $598.8K 12 2025-07-23
HARROW, INC. (HROWL) Delisted Chief Executive Officer 1,478,547 $25.61 $37.87M $0 2 2022-01-21
ETON Director 794,745 $46.65 $37.07M $60.0K 3 2020-03-16
HARROW, INC. (IMMY) Delisted Chief Executive Officer 525,835 — — $279.2K 8 2018-01-04
IPWR Director 5,496 $3.79 $20.8K -$199.2K 7 2017-03-06

Recent Filings

47 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
2026-05-15 HROW Buy (P) +10,000 $302.0K EDGAR
2025-12-16 HROW Mixed +100,006 -$3.05M EDGAR
2025-07-23 HARROW, INC. (HROWM) Delisted Mixed +286,662 -$6.90M EDGAR
2025-07-01 HARROW, INC. (HROWM) Delisted Grant (A) — $0 EDGAR
2025-04-07 HARROW, INC. (HROWM) Delisted Mixed +461,937 -$6.94M EDGAR
2024-03-25 HARROW, INC. (HROWM) Delisted Buy (P) +9,000 $104.3K EDGAR
2024-02-21 HARROW, INC. (HROWM) Delisted Exer (M) +90,164 $962.0K EDGAR
2024-02-08 HARROW, INC. (HROWM) Delisted Exer (M) +15,400 $118.7K EDGAR
2023-11-16 HARROW, INC. (HROWM) Delisted Buy (P) +7,500 $60.8K EDGAR
2023-08-15 HARROW, INC. (HROWM) Delisted Buy (P) +5,800 $98.9K EDGAR
Showing 1–10 of 47
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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.