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WALTER V KLEMP

CIK 938419 · CEO and President · last filed 2025-11-14

"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

$2.02M

Companies

3

Total Filings

43

Lifetime Open-Market Net

$410.8K

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
MBRX CEO and President 765,356 $2.64 $2.02M $410.8K 36 2025-11-14
AMIX Director — $0.39 — $0 2 2025-08-13
Soliton, Inc. (SOLY) Delisted Executive Chairman 0 $22.58 $0 $0 5 2021-12-17

Recent Filings · Page 4 of 5

43 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2021-06-21 MBRX Grant (A) — $0 EDGAR
2021-04-16 Soliton, Inc. (SOLY) Delisted Grant (A) — $0 EDGAR
2020-07-14 MBRX Mixed +59,935 -$16.5K EDGAR
2020-07-07 MBRX Grant (A) — $0 EDGAR
2020-02-12 Soliton, Inc. (SOLY) Delisted Grant (A) — $0 EDGAR
2020-02-12 Soliton, Inc. (SOLY) Delisted Grant (A) — $0 EDGAR
2019-07-15 MBRX Grant (A) — $0 EDGAR
2019-07-15 MBRX Grant (A) — $0 EDGAR
2019-07-01 Soliton, Inc. (SOLY) Delisted Grant (A) — $0 EDGAR
2018-06-08 MBRX Grant (A) — $0 EDGAR
Showing 31–40 of 43
Page 4 of 5
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.