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$ Value

$0

Shares

3,939

Price

$0

Filed

May 28

Insider

Name

Black Archie C.

Title

CIK

0001489095

Roles

Director

Transaction Details

Transaction Date

2025-05-23

Code

A

Table

Non-Derivative

Ownership

Direct

Equity Swap

No

Shares After

26,218

Footnotes

Deferred stock units that vest in full on the first anniversary of the grant date or the date but must be retained by the reporting person until the completion of the reporting person's service on the Company's Board of Directors. | Reporting Person's beneficial ownership amount has been increased by 1,565 shares of common stock as a result of a reconciliation of his direct holdings against the amount set forth in his prior Form 4 filed on May 24, 2024.

Filing Info

Accession No.

0001628280-25-028229

Form Type

4

Issuer CIK

0001443669

Black Archie C.'s History

Date Ticker Type Value
2026-04-01 GGG A $25K
2026-02-13 GGG A $0
2026-01-01 GGG A $25K
2025-10-01 GGG A $25K
2025-07-01 GGG A $25K
2025-05-23 PRLB A $0

Other Insiders at PRLB (90d)

Insider Bought Sold Last
Krishna Suresh
President and CEO
2026-02-25
Kenison Michael R.
Chief Operations Officer
$482K 2026-02-25
Schumacher Daniel
Chief Financial Officer
2026-02-25
Kermisch Marc
Chief Technology & AI Officer
2026-02-25