DAVID S KABAKOFF

CIK 1024008 · last filed 2025-06-24

DAVID S KABAKOFF is a corporate insider who has filed 52 SEC Form 4 insider transactions across 3 companies since 2010. The most recent filing, for NXTC, was dated Jun 24, 2025. Across all open-market trades the lifetime net is −$63.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $10.4M 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

$10.42M

Companies

3

Total Filings

52

Lifetime Open-Market Net

-$63.21M

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
NXTC Director $2.08 $0 7 2025-06-24
CSTL Director 503,577 $20.70 $10.42M -$63.36M 23 2021-06-21
Trius Therapeutics Inc (TSRX) Delisted Director 58,265 $150.0K 6 2013-05-23

Recent Filings

52 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2025-06-24 NXTC Grant (A) $0 EDGAR
2024-06-21 NXTC Grant (A) $0 EDGAR
2023-06-23 NXTC Grant (A) $0 EDGAR
2022-06-24 NXTC Grant (A) $0 EDGAR
2021-06-28 NXTC Grant (A) $0 EDGAR
2021-06-21 CSTL Sell (S) −30,000 -$2.25M EDGAR
2021-06-14 CSTL Grant (A) $0 EDGAR
2021-04-07 CSTL Sell (S) −110,000 -$8.01M EDGAR
2021-04-02 CSTL Sell (S) −90,000 -$6.25M EDGAR
2021-03-23 CSTL Sell (S) −20,000 -$1.33M EDGAR
Showing 110 of 52
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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.