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ARDSLEY ADVISORY PARTNERS LP

CIK 900529 · last filed 2020-08-20

ARDSLEY ADVISORY PARTNERS LP is a corporate insider who has filed 3 SEC Form 4 insider transactions across 2 companies since 2019. The most recent filing shows the insider sold $158.4M of STKL on Aug 20, 2020. Across all open-market trades the lifetime net is −$158.4M, making them a net seller over the disclosed history. The firm reports its address in Norwalk, CT. 56 SEC filings were submitted jointly with Ardsley Partners Renewable Energy Fund, L.P.

"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

2

Total Filings

3

Lifetime Open-Market Net

-$158.40M

Filer Profile

Reported Address
105 ROWAYTON AVE
NORWALK, CT 06853
Phone
(203) 564-4230
State of Incorporation
NY
Formerly Known As
ARDSLEY ADVISORY PARTNERS (1994–2018)
Related Filers
Ardsley Partners Renewable Energy Fund, L.P. — 56 joint filings, latest 2021-11-15
Ardsley Partners I GP LLC — 54 joint filings, latest 2021-11-15
PHILIP J HEMPLEMAN — 54 joint filings, latest 2021-11-15
Ardsley Partners Fund II, L.P. — 44 joint filings, latest 2021-11-15
Ardsley Duckdive Fund, L.P. — 25 joint filings, latest 2021-01-04
Ardsley Advisory Partners GP LLC — 21 joint filings, latest 2021-11-15
Ardsley Partners Advanced Healthcare Fund, L.P. — 15 joint filings, latest 2021-11-15
Ardsley Healthcare Fund, L.P. — 11 joint filings, latest 2020-08-20
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
SunOpta Inc. (STKL) Delisted 10%+ Owner 8,692,655 $6.50 $56.50M -$158.40M 1 2020-08-20
MARRONE BIO INNOVATIONS INC (MBII) Delisted 10%+ Owner 11,780,442 $0.80 $9.40M $0 1 2019-09-09

Recent Filings

3 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
2020-08-20 SunOpta Inc. (STKL) Delisted Sell (S) −26,400,000 -$158.40M EDGAR
2019-09-09 MARRONE BIO INNOVATIONS INC (MBII) Delisted Exer (M) +11,657,560 $11.66M EDGAR
2007-05-02 — Buy (P) +125,000 $35.8K
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.