WILLIAM J SANDBROOK

CIK 1527678 · See Remarks · 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

$15.51M

Companies

3

Total Filings

97

Lifetime Open-Market Net

-$9.64M

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
KNF Director 7,735 $76.92 $595.0K $0 4 2026-05-21
FIX Director 7,941 $1877.61 $14.91M -$9.64M 17 2026-05-19
Zapata Quantum, Inc. (WNNR.U) Delisted See Remarks $14.00 $0 1 2022-01-20

Recent Filings · Page 9 of 10

97 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2015-10-01 Sell (S) −6,500 -$303.7K
2015-08-25 Tax (F) −49,673 -$2.48M
2015-08-21 Mixed −5,563 -$232.6K
2015-08-11 Tax (F) −4,313 -$229.4K
2015-05-11 Tax (F) −2,479 -$96.1K
2015-04-03 Grant (A) +51,400 $0
2015-03-16 Tax (F) −2,056 -$67.3K
2014-08-26 Mixed −17,655 -$1.20M
2014-03-19 Buy (P) +1,000 $23.5K
2013-08-23 Tax (F) −110,119 -$2.15M
Showing 8190 of 97
Page 9 of 10
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.