JEFFREY F EISENBERG

CIK 1224096 · Chief Executive Officer · last filed 2023-12-13

JEFFREY F EISENBERG is a Chief Executive Officer who has filed 22 SEC Form 4 insider transactions across 4 companies since 2007. The most recent filing, for XBIOW, was dated Dec 13, 2023. Across all open-market trades the lifetime net is −$55.3K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $160.0K across reported positions.

"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

$160.0K

Companies

4

Total Filings

22

Lifetime Open-Market Net

-$55.3K

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
Xenetic Biosciences, Inc. (XBIOW) Delisted Chief Executive Officer $17.54 $0 4 2023-12-13
MABVAX THERAPEUTICS HOLDINGS, INC. (MBVX) Delisted Director 64,558 -$30.3K 9 2018-02-23
XBIO CEO 50,000 $3.20 $160.0K $0 2 2017-10-30
NOVEN PHARMACEUTICALS INC (NOVN) Delisted Executive Vice President 0 $0.09 $0 -$25.0K 6 2009-08-27

Recent Filings

22 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2023-12-13 Xenetic Biosciences, Inc. (XBIOW) Delisted Grant (A) $0 EDGAR
2022-03-28 Xenetic Biosciences, Inc. (XBIOW) Delisted Grant (A) $0 EDGAR
2021-03-22 Xenetic Biosciences, Inc. (XBIOW) Delisted Grant (A) $0 EDGAR
2019-12-06 Xenetic Biosciences, Inc. (XBIOW) Delisted Grant (A) $0 EDGAR
2018-02-23 MABVAX THERAPEUTICS HOLDINGS, INC. (MBVX) Delisted Grant (A) $0 EDGAR
2018-01-24 MABVAX THERAPEUTICS HOLDINGS, INC. (MBVX) Delisted Sell (S) −35,442 -$30.3K EDGAR
2018-01-12 MABVAX THERAPEUTICS HOLDINGS, INC. (MBVX) Delisted Exer (M) +100,000 $0 EDGAR
2017-10-30 XBIO Grant (A) +50,000 $0 EDGAR
2017-10-04 MABVAX THERAPEUTICS HOLDINGS, INC. (MBVX) Delisted Grant (A) $0 EDGAR
2017-09-18 MABVAX THERAPEUTICS HOLDINGS, INC. (MBVX) Delisted Grant (A) $0 EDGAR
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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.