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Mark Tepper

CIK 1291087 · President and CSO · last filed 2019-01-18

Mark Tepper is a President and CSO who has filed 10 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing, for CRBP, was dated Jan 18, 2019. Across all open-market trades the lifetime net is −$944.5K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $502.3K across reported positions. 4 SEC filings were submitted jointly with CYTRX CORP.

"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

$502.3K

Companies

2

Total Filings

10

Lifetime Open-Market Net

-$944.5K

Filer Profile

Reported Address
C/O CORBUS PHARMACEUTICALS HOLDINGS, INC
100 RIVER RIDGE DRIVE
NORWOOD, MA 02062
Related Filers
CYTRX CORP — 4 joint filings, latest 2007-05-10
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

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
CRBP President and CSO 70,347 $7.14 $502.3K $0 6 2019-01-18
LadRx Corp (CYTR) Delisted Vice President 1,786 — — -$944.5K 3 2007-05-10

Recent Filings

10 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2019-01-18 CRBP Grant (A) — $0 EDGAR
2018-11-16 CRBP Exer (M) +10,000 $10.0K EDGAR
2018-01-05 CRBP Grant (A) — $0 EDGAR
2017-03-03 CRBP Grant (A) — $0 EDGAR
2016-10-07 CRBP Grant (A) — $0 EDGAR
2016-01-11 CRBP Grant (A) — $0 EDGAR
2014-11-26 — Buy (P) +2,000 $6.1K
2007-05-10 LadRx Corp (CYTR) Delisted Mixed — -$141.8K EDGAR
2007-05-04 LadRx Corp (CYTR) Delisted Mixed — -$133.0K EDGAR
2007-05-01 LadRx Corp (CYTR) Delisted Mixed — -$127.5K EDGAR
Form 4 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.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.