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MPM BIOVENTURES III GP L.P.

CIK 1249143 · last filed 2013-02-07

MPM BIOVENTURES III GP L.P. is a corporate insider who has filed 5 SEC Form 4 insider transactions across 4 companies since 2007. The most recent filing, for KBIO, was dated Feb 7, 2013. Across all open-market trades the lifetime net is −$15.0M, making them a net seller over the disclosed history. The firm reports its address in Boston, MA. 109 SEC filings were submitted jointly with MPM BIOVENTURES III LLC.

"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

$0

Companies

4

Total Filings

5

Lifetime Open-Market Net

-$14.98M

Filer Profile

Reported Address
THE JOHN HANCOCK TOWER
200 CLARENDON STREET, 54TH FLOOR
BOSTON, MA 02116
Phone
(617) 425-9200
State of Incorporation
DE
Formerly Known As
MPM BIOVENTURES III GP LP (2004–2009)
MPM BIO VENTURES III GP LP (2003–2003)
Related Filers
MPM BIOVENTURES III LLC — 109 joint filings, latest 2016-09-29
MPM BIOVENTURES III GMBH & CO. Beteiligungs KG — 107 joint filings, latest 2016-09-29
MPM BIOVENTURES III L.P. — 107 joint filings, latest 2016-09-29
MPM BIOVENTURES III-QP L.P. — 107 joint filings, latest 2016-09-29
MPM BIOVENTURES III PARALLEL FUND, L.P. — 93 joint filings, latest 2016-09-29
MPM ASSET MANAGEMENT INVESTORS 2003 BVIII LLC — 51 joint filings, latest 2016-09-29
MICHAEL STEINMETZ — 40 joint filings, latest 2016-09-29
KURT WHEELER — 34 joint filings, latest 2007-01-10
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
HUMANIGEN, INC (KBIO) Delisted 10%+ Owner 2,319,401 — — $0 1 2013-02-07
PONIARD PHARMACEUTICALS, INC. (PARDD) Delisted 10%+ Owner 6,363,249 — — -$28.36M 1 2009-11-09
Pharmasset Inc (VRUS) Delisted 10%+ Owner 6,600 — — $17.50M 1 2007-05-04
Pernix Sleep, Inc. (SOMX) Delisted 10%+ Owner 429,084 — — -$4.12M 1 2007-05-03

Recent Filings

5 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
2013-02-07 HUMANIGEN, INC (KBIO) Delisted Conv (C) +21,063,424 $0 EDGAR
2009-11-09 PONIARD PHARMACEUTICALS, INC. (PARDD) Delisted Sell (S) −3,464,734 -$28.36M EDGAR
2009-01-15 — Buy (P) +69,110 $485.8K
2007-05-04 Pharmasset Inc (VRUS) Delisted Mixed +7,678,671 $17.50M EDGAR
2007-05-03 Pernix Sleep, Inc. (SOMX) Delisted Sell (S) −228,200 -$4.12M 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.