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SEC Form 4 research

CATALYST BIOSCIENCES, INC. insider transactions

Inspect CATALYST BIOSCIENCES, INC.'s public SEC insider acquisitions and sales, reporting owners and source receipts.

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

Issuer CIK
0001124105
Reporting owners
93
Officers and directors
26
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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

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2026-08-052026-08-03Weston ClaireA40,000$0Not reported

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

The displayed observation date is 2026-08-03 and its public availability date is 2026-08-05. Subtracting those calendar dates gives 2 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 A: a award. An award is an acquisition but is not an open-market purchase. A purchase-following rule must not count it as code P.

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.

SEC accession 0001140361-26-031326 ↗SEC accession 0001140361-26-031324 ↗

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 · 2 rows, 7 columns

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

2026-08-052026-08-03Weston ClaireA40,000$0Not reported
2026-08-052026-08-03Kirkby MaxwellA40,000$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 30 displayed rows: Officers and directors in the directory

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Miller Seline E.00017698662
BLIXT CHARLES A00010877624
DUNTON ALAN W000130477359
Payne Fletcher00016504762
BARRETT M JAMES0001219855224
Bencherif Merouane000129583112
Blouse Grant E.00018698833
Brennan Jeffrey P00012960937
BROWN JULIA R00010304686
BURRILL STEVEN000119817728
Cai Veronica00018013221
Caldwell William S000129582926
deBethizy J Donald000129602722
Dunbar Geoffrey C000129602524
Hicks Karen A00014897747
HILL STEPHEN A000123740410
Hodges Mauri K000148977310
LAWLOR AUGUSTINE000126232734
Levy Howard00016723335
Ling Geoffrey M.D.00018000971
Luo Ying00019591602
Ma Songjiang000198554783
Musso Alan A000129583034
Richard John P00012965289
SKALETSKY MARK B00010733796
SNYDERMAN RALPH000117803110
USMAN NASSIM000120687213
Williams Eddie00017252761
Ye Weiguo000198549616
Zorn Peter A00013578657
Miller Seline E. ↗BLIXT CHARLES A ↗DUNTON ALAN W ↗Payne Fletcher ↗BARRETT M JAMES ↗Bencherif Merouane ↗Blouse Grant E. ↗Brennan Jeffrey P ↗BROWN JULIA R ↗BURRILL STEVEN ↗Cai Veronica ↗Caldwell William S ↗deBethizy J Donald ↗Dunbar Geoffrey C ↗Hicks Karen A ↗HILL STEPHEN A ↗Hodges Mauri K ↗LAWLOR AUGUSTINE ↗Levy Howard ↗Ling Geoffrey M.D. ↗Luo Ying ↗Ma Songjiang ↗Musso Alan A ↗Richard John P ↗SKALETSKY MARK B ↗SNYDERMAN RALPH ↗USMAN NASSIM ↗Williams Eddie ↗Ye Weiguo ↗Zorn Peter A ↗

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.