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MICHAEL A KRUPKA

CIK 1212150 · last filed 2015-01-05

MICHAEL A KRUPKA is a corporate insider who has filed 31 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing, for VG, was dated Jan 5, 2015. Current disclosed insider exposure totals $31.6M across reported positions. 34 SEC filings were submitted jointly with VONAGE HOLDINGS 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

$31.58M

Companies

2

Total Filings

31

Lifetime Open-Market Net

$0

Filer Profile

Reported Address
BAIN CAPITAL
JOHN HANCOCK TOWER, 200 CLARENDON STREET
BOSTON, MA 02116
Related Filers
VONAGE HOLDINGS CORP — 34 joint filings, latest 2015-01-05
BAIN CAPITAL VENTURE INVESTORS, LLC — 26 joint filings, latest 2018-03-19
BAIN CAPITAL INVESTORS LLC — 9 joint filings, latest 2015-07-24
Bain Capital Venture Partners 2007, L.P. — 8 joint filings, latest 2018-03-19
VENTURE ASSOCIATES-B BCIP — 7 joint filings, latest 2018-03-19
Venture Associates BCIP — 7 joint filings, latest 2018-03-19
Ajay Agarwal — 6 joint filings, latest 2018-03-19
BAIN CAPITAL VENTURE FUND 2005, L.P. — 6 joint filings, latest 2017-12-11
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
VG Director 2,189,914 $14.42 $31.58M $0 30 2015-01-05
NANOSPHERE INC (NSPH) Delisted 10%+ Owner 102,600 — — $0 1 2007-11-08

Recent Filings

31 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
2015-01-05 VG Grant (A) +7,545 $0 EDGAR
2014-10-02 VG Grant (A) +9,040 $0 EDGAR
2014-07-02 VG Grant (A) +7,646 $0 EDGAR
2014-01-02 VG Grant (A) +8,633 $0 EDGAR
2013-10-02 VG Grant (A) +8,984 $0 EDGAR
2013-07-03 VG Grant (A) +10,454 $0 EDGAR
2013-04-03 VG Grant (A) +9,982 $0 EDGAR
2013-01-03 VG Grant (A) +12,130 $0 EDGAR
2012-10-03 VG Grant (A) +4,385 $0 EDGAR
2012-07-02 VG Grant (A) +4,975 $0 EDGAR
Showing 1–10 of 31
Page 1 of 4
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.