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SEC Form 4 research

GTC BIOTHERAPEUTICS INC insider transactions

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

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

Issuer CIK
0000904973
Reporting owners
21
Officers and directors
11
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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.

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.

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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 · 12 rows, 3 columns

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Bechon Christian00013840302
BULLOCK FRANCIS J00011952372
COX GEOFFREY F000102101421
GERAGHTY JAMES A000123974624
GRAY MARY ANN00012619748
GREEN JOHN B000124384713
LFB Biotechnologies S.A.S.U.00013779424
LIPOSKY GREGORY F00012423315
MEADE HARRY00012413221
Scotland Richard A00013562012
TUCK ALAN W00010695762
WOLOSHEN DANIEL S00012422053
Bechon Christian ↗BULLOCK FRANCIS J ↗COX GEOFFREY F ↗GERAGHTY JAMES A ↗GRAY MARY ANN ↗GREEN JOHN B ↗LFB Biotechnologies S.A.S.U. ↗LIPOSKY GREGORY F ↗MEADE HARRY ↗Scotland Richard A ↗TUCK ALAN W ↗WOLOSHEN DANIEL S ↗

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.