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Nicholas Simon

CIK 1431403 · last filed 2021-06-15

Nicholas Simon is a corporate insider who has filed 22 SEC Form 4 insider transactions across 8 companies since 2008. The most recent filing, for SIEN, was dated Jun 15, 2021. Across all open-market trades the lifetime net is +$89.0M, making them a net buyer over the disclosed history. 56 SEC filings were submitted jointly with DENNIS HENNER.

"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

8

Total Filings

22

Lifetime Open-Market Net

$88.97M

Filer Profile

Reported Address
101 MAIN STREET SUITE 1210
CAMBRIDGE, MA 02142
Related Filers
DENNIS HENNER — 56 joint filings, latest 2018-10-02
ROBERT LIPTAK — 56 joint filings, latest 2018-10-02
NICHOLAS GALAKATOS — 54 joint filings, latest 2018-07-02
KURT WHEELER — 54 joint filings, latest 2018-10-02
MICHAEL STEINMETZ — 41 joint filings, latest 2016-02-10
Clarus Lifesciences II, L.P. — 31 joint filings, latest 2017-10-17
Clarus Ventures II GP, L.P. — 31 joint filings, latest 2017-10-17
Clarus Ventures II, LLC — 31 joint filings, latest 2017-10-17
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
Sientra, Inc. (SIEN) Delisted Director 283,233 $0.17 $49.3K $0 7 2021-06-15
Gritstone bio, Inc. (GRTS) Delisted Director 2,567,445 $0.03 $82.7K $5.00M 3 2020-06-22
Venus Concept Inc. (HAIR) Delisted 10%+ Owner 225,940 — — $0 1 2017-10-17
Oxford Immunotec Global PLC (OXFD) Delisted 10%+ Owner 2,371,328 — — -$6.19M 1 2015-03-24
AERIE PHARMACEUTICALS INC (AERI) Delisted 10%+ Owner 3,499,259 $15.25 $53.36M -$6.56M 1 2015-01-06
ACHILLION PHARMACEUTICALS INC (ACHN) Delisted Director 73,593 — — $114.10M 6 2012-06-06
AVANIR PHARMACEUTICALS, INC. (AVNR) Delisted 10%+ Owner 15,151,480 — — -$17.37M 1 2010-10-12
ACHILLION PHARMACEUTICALS INC (TPTX) Delisted Director — $76.01 — $0 2 2008-12-17

Recent Filings

22 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
2021-06-15 Sientra, Inc. (SIEN) Delisted Grant (A) +16,870 $0 EDGAR
2020-06-22 Gritstone bio, Inc. (GRTS) Delisted Grant (A) — $0 EDGAR
2020-06-09 Sientra, Inc. (SIEN) Delisted Grant (A) +27,717 $0 EDGAR
2019-06-20 Gritstone bio, Inc. (GRTS) Delisted Grant (A) — $0 EDGAR
2019-06-18 Sientra, Inc. (SIEN) Delisted Grant (A) +19,320 $0 EDGAR
2018-10-02 Gritstone bio, Inc. (GRTS) Delisted Mixed +2,567,445 $5.00M EDGAR
2018-06-07 Sientra, Inc. (SIEN) Delisted Grant (A) +6,116 $125.0K EDGAR
2017-10-17 Venus Concept Inc. (HAIR) Delisted Conv (C) +28,559,888 $10.13M EDGAR
2017-06-26 Sientra, Inc. (SIEN) Delisted Grant (A) +12,861 $125.0K EDGAR
2016-06-27 Sientra, Inc. (SIEN) Delisted Grant (A) +18,685 $125.0K EDGAR
Showing 1–10 of 22
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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.