MIDDLEFIELD BANC CORP insider transactions

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.

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.

Show the table · 0 rows, 7 columns

Filter rows

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

No records are available for this view.

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

Show the table · 26 rows, 3 columns

Filter rows

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


MAST DARRYL E	0001202590	15
TURK CAROLYN J	0001286841	22
Jones Kenneth E	0001317189	13
Erminio Courtney M	0001698885	1
CALDWELL THOMAS G	0001223976	8
Zimmerly Ronald Len Jr.	0001954793	3
Skidmore William J	0001393152	12
Cook Adam T	0001706288	1
COYNE RICHARD T	0001223978	11
DiGeronimo Kevin A	0001888936	1
FRANK FRANCES H	0001223979	1
GILES JAY P	0001223980	12
HESLOP JAMES R II	0001223983	54
HETRICK TERESA M	0001223984	7
Hollinger Eric P	0001698886	1
Hummel Eric W	0001637056	3
MCCASKEY JAMES J	0001286842	20
Moeller Jennifer L	0001968970	4
Moore Charles O	0001543854	4
RANTTILA MICHAEL	0001792684	2
Rose Clayton W III	0001675389	6
STACY DONALD L	0001223991	5
Toth Robert W	0001465402	12
VALERIAN WILLIAM A ET AL	0000941660	19
Voinovich Michael C	0001806753	48
Wilson Thomas M	0001976448	3

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.