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BLACK BEAR OFFSHORE MASTER FUND LP

CIK 1275688 · last filed 2009-09-30

BLACK BEAR OFFSHORE MASTER FUND LP is a corporate insider who has filed 74 SEC Form 4 insider transactions across 4 companies since 2007. The most recent filing shows the insider sold $333.3K of TELK on Sep 30, 2009. Across all open-market trades the lifetime net is −$3.7M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $271.2M 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

$271.24M

Companies

4

Total Filings

74

Lifetime Open-Market Net

-$3.67M

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
MABVAX THERAPEUTICS HOLDINGS, INC. (TELK) Delisted 10%+ Owner 1,007,637 — — $4.25M 27 2009-09-30
MTG 10%+ Owner 9,366,039 $28.96 $271.24M $321.1K 2 2009-07-10
CASSAVA SCIENCES INC (PTIE) Delisted 10%+ Owner 4,186,238 — — $4.02M 34 2009-07-09
AMYLIN PHARMACEUTICALS INC (AMLN) Delisted 10%+ Owner 12,812,168 — — -$12.27M 11 2008-08-29

Recent Filings

74 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
2009-09-30 MABVAX THERAPEUTICS HOLDINGS, INC. (TELK) Delisted Sell (S) −404,000 -$333.3K EDGAR
2009-09-23 MABVAX THERAPEUTICS HOLDINGS, INC. (TELK) Delisted Sell (S) −989,260 -$877.3K EDGAR
2009-09-18 MABVAX THERAPEUTICS HOLDINGS, INC. (TELK) Delisted Sell (S) −145,809 -$174.1K EDGAR
2009-07-10 MTG Other (J) −3,633,939 $0 EDGAR
2009-07-09 CASSAVA SCIENCES INC (PTIE) Delisted Other (J) −1,624,215 $0 EDGAR
2009-06-15 CASSAVA SCIENCES INC (PTIE) Delisted Sell (S) −195,921 -$994.0K EDGAR
2009-06-10 CASSAVA SCIENCES INC (PTIE) Delisted Sell (S) −310,521 -$1.64M EDGAR
2009-04-06 CASSAVA SCIENCES INC (PTIE) Delisted Sell (S) −621,860 -$2.58M EDGAR
2009-03-13 MTG Buy (P) +371,591 $321.1K EDGAR
2009-02-17 MABVAX THERAPEUTICS HOLDINGS, INC. (TELK) Delisted Buy (P) +20,124 $9.2K EDGAR
Showing 1–10 of 74
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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.