Explore more topics
SEC Form 4 research

B. Riley Principal Merger Corp. II insider transactions

Inspect B. Riley Principal Merger Corp. II's public SEC insider acquisitions and sales, reporting owners and source receipts.

As of 2026-10-15T08:02:39.132Z

Issuer CIK
0001805077
Reporting owners
64
Officers and directors
17
Jump to a section

What is a Form 4?

Animation: what a Form 4 is, shown with one real example. Sonic Automotive (SAH) reporting owner Paul P. Rusnak bought 13,701 shares at $59.78 on Wednesday, October 7, 2026, transaction code P, an open-market purchase (S is a sale and A is an award from the company). A timeline marks the SEC's two-business-day filing deadline, which ends Friday, October 9. The SEC accepted the Form 4 at 4:33:21 PM ET on October 9, and NexusTrade treats it as public one minute later, at 4:34:21 PM ET. A lamp for NexusTrade's InsiderTrades indicator stays off from the trade date until that moment, then counts one purchase worth 13,701 × $59.78 = $819,045.78.
In this example the shares were bought on Oct 7, 2026, and NexusTrade's InsiderTrades indicator can count the purchase starting at 4:34:21 PM ET on Oct 9, one minute after the SEC accepted the Form 4.

A Form 4 is the SEC filing a company insider, such as an officer, director or 10% owner, uses to report a trade in the company's stock, generally within two business days. The animation follows one real filing as an example: Paul P. Rusnak's purchase of Sonic Automotive (SAH) shares on October 7, 2026.

The same reading applies to every row on this page. The trade date is when the shares changed hands. The available date is when NexusTrade treats the filing as public, and a NexusTrade InsiderTrades indicator counts a purchase (code P) or sale (code S) only from that moment. Code A awards are not counted as purchases.

Read one actual disclosure before using it

Show the table · 1 row, 7 columns

Scroll sideways to compare all columns. Select a heading to sort.

2026-09-162026-09-16Puri SumeetS43,750$3.92Not reported

First displayed source row from Recent insider disclosures. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-09-16 and its public availability date is 2026-09-16. Subtracting those calendar dates gives 0 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

Recent insider disclosures

Inspect all 17 displayed rows: Recent insider disclosures

This table includes purchases, sales and awards in the public filing record. Awards and open-market purchases are distinct transaction codes. For historical research, use the public availability date to determine when the transaction was knowable.

Read code P as a purchase, S as a sale and A as an award. An award is an acquisition, but it is not an open-market purchase. Open the filing receipt to check the transaction details.

Scroll sideways to compare all columns. Select a heading to sort.

2026-09-162026-09-16Puri SumeetS43,750$3.92Not reported
2026-09-162026-09-16Mastrangelo JoeS250,000$3.92Not reported
2026-09-162026-09-14Mastrangelo JoeA500,000$0Not reported
2026-09-152026-09-14Song HaiyanP5,000$3.84Not reported
2026-09-152026-09-11Song HaiyanP10,000$3.95Not reported
2026-09-092026-09-09Puri SumeetS34,167$4.13Not reported
2026-08-272026-08-24Puri SumeetA65,044$0Not reported
2026-08-272026-08-24Buczkowski MichelleA195,130$0Not reported
2026-08-272026-08-24Lagi AlessandroA195,130$0Not reported
2026-08-272026-08-24Mastrangelo JoeA611,406$0Not reported
2026-08-072026-08-04CCM Frontier JV Holdco, LLC, CCM Frontier Power USA Holdings GP, LLC, CCM Frontier Power USA Holdings, LP, Cerberus GP Manager LLCA20,017,772Not reportedNot reported
2026-07-292026-07-28Puri SumeetS29,167$3.36Not reported
2026-07-292026-07-28Kroeker NathanS110,417$3.36Not reported
2026-07-292026-07-27Mastrangelo JoeS159,154$3.61Not reported
2026-07-282026-07-23Nigro JosephA5,942$0Not reported
2026-07-282026-07-23Walters MarianA5,942$0Not reported
2026-07-282026-07-23DIMITRIEF ALEXANDERA5,942$0Not reported

Most recent 90-day source activity, up to 50 rows. No rows means no matching recent records, not no historical activity.

Officers and directors in the directory

Inspect all 18 displayed rows: Officers and directors in the directory

Scroll sideways to compare all columns. Select a heading to sort.

Demby Claude00018556404
Walters Marian00017829056
Kroeker Nathan000161371820
Mastrangelo Joe000183330913
Stidolph Russell Monoki00018332756
Tedone John J00013985329
Gonzales Randall B00017343694
Berube Melissa00019115351
DIMITRIEF ALEXANDER000161473220
Bornstein Jeffrey S000157998913
Zibelman Audrey Ann00018330881
Shribman Daniel000177238912
Buczkowski Michelle00020967051
Puri Sumeet00019915218
RILEY BRYANT R00012072691,031
Silberman Michael W00018139904
Song Haiyan00018047082
Urban David00017622201

Which transactions qualify for the company tracker

The company strategy uses verified officers and directors with qualifying acquisitions at this issuer. Other reporting owners may appear in source records without becoming strategy signals.

Strategy eligibility is held while filing coverage is unresolved.

Historical follower simulations are separate from these source transactions. They do not establish live trading results.