Filer Snapshot

Leonard Osser

CIK 0001188354. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity type

Individual

Total filings

30

Latest filing

10 Aug 2023

Industry

n/a

Filing-backed research brief

Start with the SEC data that changes for this CIK

Latest signal: Forms 3/4/5 owner position for MLSS. Each card links back to the PortfolioSavvy page where the filing evidence is closest.

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Largest parsed holding

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Populates from the latest parsed 13F information table.

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13D/G large stake

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No recent parsed 13D/G stake row for this CIK.

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Source: SEC Forms 3/4/5

4 filed on 10 Aug 2023 for CIK 0001188354.

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Ownership signals CIK-linked ownership evidence from parsed SEC filings. 1 signal
Parsed SEC ownership signals

Parsed SEC ownership coverage

These bars compare filing-backed value available in each disclosure family. Read them as separate lenses, not as one combined ownership total.

Forms 3/4/5 positions$5.6M

Reporting-owner positions with enough filing detail to estimate value.

Forms 3/4/5 position value

3/4/5
$5.6M

Estimated from parsed Forms 3/4/5 when filings include enough share and price data.

Largest linked holdings

Largest issuer positions linked to this CIK across parsed 13F, 13D/G, and Forms 3/4/5 records.

MLSS NXL
How to read these SEC ownership signals
  • Read each filing family separately: 13F portfolios, 13D/G large stakes, and Forms 3/4/5 owner positions answer different SEC disclosure questions.
  • Open the linked research path when you need the filing, CIK, issuer, or CUSIP trail behind a value.
At a glance Names, identifiers, and filing context for this profile. 1 identity field
Business address
425 Eagle Rock Avenue, Ste. 403, Roseland, NJ, 07068

Filer intelligence

What SEC filings say about Leonard Osser

A compact read of parsed XML filings. 13F, 13D/G, and Forms 3/4/5 are shown separately because they answer different ownership questions.

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Quick read

  • Forms 3/4/5 show insider context for MLSS worth $4.28M.

SEC source mix

Counts show available parsed rows, not one combined ownership total.

XML parsed
13F portfolio No rows yet

Quarterly institutional portfolio holdings.

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13D/G stakes No rows yet

Beneficial ownership and large-stake disclosures.

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Forms 3/4/5 2 rows

Officer, director, and 10% owner holdings or transactions.

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Forms 3/4/5 insider context

MLSS

22 Oct 2024

$4.28M
Issuer page Owner page

NXL

29 Sep 2025 · 10% owner

$1.31M
Issuer page Owner page

Latest update

What changed recently for Leonard Osser

Ownership report updated

Latest ownership report period: 29 Sep 2025. Open the source-backed page to inspect the fresh filing or facts context.

Update date

30 Sep 2025

Page type

Ownership filings

Latest period

29 Sep 2025

Ownership context was refreshed from SEC Forms 3/4/5 filed on 30 Sep 2025.

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SEC filing record

CIK 0001188354 filing coverage

Start with this filing record, then use the linked ownership pages when parsed 13F, 13D/G, Forms 3/4/5, or facts data exists for this CIK.

SEC filings
30
First seen
23 Jun 2021
Latest filing
10 Aug 2023
Entity
Individual

Observed form types

3 4 4/A

CIK-linked evidence first

Leonard Osser SEC filings Leonard Osser owner filings Open SEC filing index

Latest Filings

Showing the latest 12 of 30 SEC filings for Leonard Osser.

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4

4 filing

Filing date
10 Aug 2023
Reporting date
28 Jun 2023
SEC evidence
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4/A

4/A filing

Filing date
11 Oct 2022
Reporting date
13 Jun 2022
SEC evidence
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4

4 filing

Filing date
29 Sep 2022
Reporting date
28 Sep 2022
SEC evidence
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4

4 filing

Filing date
20 Sep 2022
Reporting date
16 Sep 2022
SEC evidence
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3

3 filing

Filing date
19 Sep 2022
Reporting date
15 Sep 2022
SEC evidence
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4

4 filing

Filing date
15 Jun 2022
Reporting date
13 Jun 2022
SEC evidence
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4

4 filing

Filing date
20 Apr 2022
Reporting date
18 Apr 2022
SEC evidence
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4

4 filing

Filing date
13 Apr 2022
Reporting date
11 Apr 2022
SEC evidence
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4

4 filing

Filing date
04 Apr 2022
Reporting date
01 Apr 2022
SEC evidence
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4

4 filing

Filing date
29 Mar 2022
Reporting date
28 Mar 2022
SEC evidence
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4

4 filing

Filing date
22 Mar 2022
Reporting date
21 Mar 2022
SEC evidence
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4

4 filing

Filing date
15 Mar 2022
Reporting date
14 Mar 2022
SEC evidence
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