Archie C. Black

CIK 1489095 · CEO · last filed 2026-05-21

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$6.01M

Companies

3

Total Filings

134

Lifetime Open-Market Net

-$119.46M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
PRLB Director 28,428 $78.94 $2.24M $0 14 2026-05-21
GGG Director 0 $74.60 $0 $0 18 2026-04-02
SPSC Director 68,198 $55.24 $3.77M -$119.46M 101 2024-02-23

Recent Filings · Page 8 of 14

134 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2018-11-09 SPSC Mixed -$1.82M EDGAR
2018-11-06 SPSC Mixed -$112.0K EDGAR
2018-08-17 SPSC Mixed -$2.07M EDGAR
2018-08-08 SPSC Sell (S) −10,000 -$900.0K EDGAR
2018-08-03 SPSC Grant (A) +10,972 $0 EDGAR
2018-08-02 SPSC Sell (S) −10,000 -$853.3K EDGAR
2018-08-02 SPSC Grant (A) +10,972 $0 EDGAR
2018-05-18 PRLB Grant (A) +1,064 $0 EDGAR
2018-05-07 SPSC Grant (A) $0 EDGAR
2018-02-16 SPSC Grant (A) $0 EDGAR
Showing 7180 of 134
Page 8 of 14
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.