A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.

Why are some filings missing?

New filings appear as the SEC updates EDGAR, and older records can vary by availability.

How often is this page updated?

Updates follow new EDGAR submissions and periodic data refreshes.

Filer Snapshot

ALPINE ASSOCIATES MANAGEMENT INC.

CIK 0001396835. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity Type

Company

Total Filings

Latest Filing

21 Apr 2026

Industry

n/a

Filing-backed research brief

Start with the SEC data that changes for this CIK

Latest signal: 13F-HR for Q1 2026. Each card links back to the PortfolioSavvy page where the filing evidence is closest.

Open 13F portfolio Save page

Latest 13F portfolio

$1.7B

70 holdings for Q1 2026

Open portfolio

Largest parsed holding

NSC

$133.3M reported value

Open holding

13D/G large stake

RDUS

14 Jul 2025 · 0% ownership

Open 13D/G

Insider / owner context

—

No parsed Forms 3/4/5 owner position for this CIK.

Browse insider filings

Save this filer page

Create a free account to keep this page in your watchlists. After verification, we will save it automatically and open your saved research list.

Create free account and save this filer Already have an account? Sign in and save it

Source: SEC Form 13F

13F-HR filed on 21 Apr 2026 for CIK 0001396835.

View Source Filing

Business address: 249 Royal Palm Way, Suite 400, Palm Beach, FL, 33480
Filing-backed coverage: 13F portfolio value
$1.7B
Latest parsed institutional portfolio value.
Top 13F symbols
NSC, AL, GTLS, EA
Symbols from the latest parsed 13F holdings.
Top 13F securities: NSC AL GTLS EA QRVO UNF KVUE VAL SLAB ACLX PEN WBD +8 more
Top 13G stakes: RDUS
State of incorporation: DE
Fiscal year end: 31 December
Former names: ECKERT CORP (to 12 Feb 2010)

Filer intelligence

What SEC filings say about ALPINE ASSOCIATES MANAGEMENT INC.

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

Open 13F portfolio Save filer

Quick read

Latest parsed 13F shows $1.7B across 70 reported holdings for Q1 2026.
Largest parsed 13F holding: NSC at $133.3M.
1 recent 13D/G stake row found; top row is RDUS at 0% ownership.

SEC source mix

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

XML parsed

13F portfolio 70 rows

Quarterly institutional portfolio holdings.

Open

13D/G stakes 1 rows

Beneficial ownership and large-stake disclosures.

Open

Forms 3/4/5 No rows yet

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

Open

Top parsed 13F holdings

Visual share of the latest parsed 13F portfolio. Values are reported market value, not a recommendation.

Q1 2026 - 21 Apr 2026

Top 5 concentration

26%

Share of latest parsed 13F value represented by the visible holdings below.

Top 5 reported value

$439.15M

Compared with $1.7B total 13F value.

Top 5 net change

+$55.59M

Position-value change inside the visible top holdings only.

13F concentration map

A simple visual split of the latest parsed 13F portfolio.

Largest add: UNF · Largest trim: CYBR

NSC AL GTLS EA QRVO Other holdings

NSC

7.9%

Norfolk Southn Corp

$133.3M

AL

5.3%

Air Lease Corp

$89.77M

GTLS

5.2%

Chart Inds Inc

$88.64M

EA

3.9%

Electronic Arts Inc

$65.39M

QRVO

3.7%

Qorvo Inc

$62.04M

13D/G large-stake context

RDUS

14 Jul 2025 · Class A

Issuer page 13D/G history

Latest update

What changed recently for ALPINE ASSOCIATES MANAGEMENT INC.

New filing available

Latest 13F period: Q1 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

21 Apr 2026

Page type

Filer profile

Latest period

Q1 2026

Institutional portfolio context was refreshed from a 13F filing filed on 21 Apr 2026.

Open filer profile Browse recent public updates

Benchmark Context

Benchmark context for this company

ALPINE ASSOCIATES MANAGEMENT INC. has a source-backed company facts view where you can compare the latest reported metrics with its own recent history and with peer rankings for the same metric.

Compared with

Start on the facts page for period-to-period context, then open a metric ranking when you want to compare the same reported fact across other SEC-reporting companies.

Why this is notable

Latest 13F period: Q1 2026. That gives you a fresh baseline before you compare this company with peers.

Peer comparisons stay conservative: same metric, compatible units, latest valid company row only.
Open the facts page first if you want the cleanest path to verification.

Benchmark context is only shown where the app has enough comparable SEC-backed data to keep the interpretation honest.

Open company facts Browse metric rankings

SEC filing record

CIK 0001396835 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

First seen

14 May 2007

Latest filing

21 Apr 2026

Entity

Company

Observed form types

13F-HR SCHEDULE 13G/A N-PX SCHEDULE 13G SC 13G/A SC 13G 13F-HR/A 13F-NT/A 13F-NT

Primary evidence

Open SEC filing index ALPINE ASSOCIATES MANAGEMENT INC. SEC filings ALPINE ASSOCIATES MANAGEMENT INC. 13F portfolio ALPINE ASSOCIATES MANAGEMENT INC. 13D/G history

Latest Filings

Recent SEC filings for ALPINE ASSOCIATES MANAGEMENT INC. with direct links to document and filing folders.

13F-HR File 028-12478

13F-HR filing

Filing date: 21 Apr 2026
Reporting date: 31 Mar 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 05 Feb 2026
Reporting date: 31 Dec 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 06 Nov 2025
Reporting date: 30 Sep 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date: 14 Oct 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

N-PX File 028-12478

N-PX filing

Filing date: 14 Aug 2025
Reporting date: 30 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13G

SCHEDULE 13G filing

Filing date: 05 Aug 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 05 Aug 2025
Reporting date: 30 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 08 May 2025
Reporting date: 31 Mar 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 07 Feb 2025
Reporting date: 31 Dec 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 08 Nov 2024
Reporting date: 30 Sep 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 09 Aug 2024
Reporting date: 30 Jun 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

N-PX File 028-12478

N-PX filing

Filing date: 09 Aug 2024
Reporting date: 30 Jun 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A

SC 13G/A filing

Filing date: 20 May 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 09 May 2024
Reporting date: 31 Mar 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

SC 13G filing

Filing date: 12 Feb 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR/A File 028-12478

13F-HR/A filing

Filing date: 12 Feb 2024
Reporting date: 31 Dec 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 07 Feb 2024
Reporting date: 31 Dec 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A

SC 13G/A filing

Filing date: 08 Dec 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 08 Nov 2023
Reporting date: 30 Sep 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 10 Aug 2023
Reporting date: 30 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 10 May 2023
Reporting date: 31 Mar 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

SC 13G filing

Filing date: 10 Feb 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 08 Feb 2023
Reporting date: 31 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 10 Nov 2022
Reporting date: 30 Sep 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 09 Aug 2022
Reporting date: 30 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 11 May 2022
Reporting date: 31 Mar 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 08 Feb 2022
Reporting date: 31 Dec 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 10 Nov 2021
Reporting date: 30 Sep 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 11 Aug 2021
Reporting date: 30 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 11 May 2021
Reporting date: 31 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 10 Feb 2021
Reporting date: 31 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 10 Nov 2020
Reporting date: 30 Sep 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A

SC 13G/A filing

Filing date: 06 Nov 2020
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 12 Aug 2020
Reporting date: 30 Jun 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR/A File 028-12478

13F-HR/A filing

Filing date: 27 Jul 2020
Reporting date: 31 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 12 May 2020
Reporting date: 31 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 13 Feb 2020
Reporting date: 31 Dec 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

SC 13G filing

Filing date: 12 Feb 2020
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 13 Nov 2019
Reporting date: 30 Sep 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 12 Aug 2019
Reporting date: 30 Jun 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 09 May 2019
Reporting date: 31 Mar 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR/A File 028-12478

13F-HR/A filing

Filing date: 14 Feb 2019
Reporting date: 31 Dec 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 13 Feb 2019
Reporting date: 31 Dec 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 09 Nov 2018
Reporting date: 30 Sep 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 10 Aug 2018
Reporting date: 30 Jun 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 11 May 2018
Reporting date: 31 Mar 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A

SC 13G/A filing

Filing date: 09 Feb 2018
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

SC 13G filing

Filing date: 08 Feb 2018
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 08 Feb 2018
Reporting date: 31 Dec 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR/A File 028-12478

13F-HR/A filing

Filing date: 13 Nov 2017
Reporting date: 30 Sep 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 13 Nov 2017
Reporting date: 30 Sep 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR/A File 028-12478

13F-HR/A filing

Filing date: 10 Aug 2017
Reporting date: 30 Jun 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 10 Aug 2017
Reporting date: 30 Jun 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 12 May 2017
Reporting date: 31 Mar 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 13 Feb 2017
Reporting date: 31 Dec 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 10 Nov 2016
Reporting date: 30 Sep 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 12 Aug 2016
Reporting date: 30 Jun 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 12 May 2016
Reporting date: 31 Mar 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A

SC 13G/A filing

Filing date: 16 Feb 2016
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A

SC 13G/A filing

Filing date: 16 Feb 2016
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

SC 13G filing

Filing date: 12 Feb 2016
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

SC 13G filing

Filing date: 12 Feb 2016
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 11 Feb 2016
Reporting date: 31 Dec 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 13 Nov 2015
Reporting date: 30 Sep 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 07 Aug 2015
Reporting date: 30 Jun 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 13 May 2015
Reporting date: 31 Mar 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-12478

13F-HR filing

Filing date: 12 Feb 2015
Reporting date: 31 Dec 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT/A File 028-12478

13F-NT/A filing

Filing date: 18 Dec 2014
Reporting date: 30 Sep 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-12478

13F-NT filing

Filing date: 12 Nov 2014
Reporting date: 30 Sep 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-12478

13F-NT filing

Filing date: 14 Aug 2014
Reporting date: 30 Jun 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-12478

13F-NT filing

Filing date: 09 May 2014
Reporting date: 31 Mar 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-12478

13F-NT filing

Filing date: 11 Feb 2014
Reporting date: 31 Dec 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-12478

13F-NT filing

Filing date: 12 Nov 2013
Reporting date: 30 Sep 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-12478

13F-NT filing

Filing date: 05 Aug 2013
Reporting date: 30 Jun 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-12478

13F-NT filing

Filing date: 10 May 2013
Reporting date: 31 Mar 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-12478

13F-NT filing

Filing date: 12 Feb 2013
Reporting date: 31 Dec 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-12478

13F-NT filing

Filing date: 13 Nov 2012
Reporting date: 30 Sep 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-12478

13F-NT filing

Filing date: 10 Aug 2012
Reporting date: 30 Jun 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-12478

13F-NT filing

Filing date: 11 May 2012
Reporting date: 31 Mar 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-12478

13F-NT filing

Filing date: 10 Feb 2012
Reporting date: 31 Dec 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-12478

13F-NT filing

Filing date: 10 Nov 2011
Reporting date: 30 Sep 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-12478

13F-NT filing

Filing date: 12 Aug 2011
Reporting date: 30 Jun 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-12478

13F-NT filing

Filing date: 10 May 2011
Reporting date: 31 Mar 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-12478

13F-NT filing

Filing date: 04 Feb 2011
Reporting date: 31 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-12478

13F-NT filing

Filing date: 12 Nov 2010
Reporting date: 30 Sep 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-12478

13F-NT filing

Filing date: 10 Aug 2010
Reporting date: 30 Jun 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-12478

13F-NT filing

Filing date: 12 May 2010
Reporting date: 31 Mar 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-12478

13F-NT filing

Filing date: 12 Feb 2010
Reporting date: 31 Dec 2009
SEC evidence: Open document Open filing
Next action: Verify source filing