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Polaris Venture Management Co. VI, L.L.C.

CIK 1665594 · last filed 2023-09-13

Polaris Venture Management Co. VI, L.L.C. is a corporate insider who has filed 8 SEC Form 4 insider transactions across 2 companies since 2016. The most recent filing shows the insider sold $15.0M of ALEC on Sep 13, 2023. Across all open-market trades the lifetime net is −$54.4M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $38.6M across reported positions. The firm reports its address in Boston, MA. 20 SEC filings were submitted jointly with Polaris Venture Partners Founders' Fund VI, 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

$38.56M

Companies

2

Total Filings

8

Lifetime Open-Market Net

-$54.44M

Filer Profile

Reported Address
ONE MARINA PARK DRIVE
8TH FLOOR
BOSTON, MA 02210
Phone
(855) 787-3500
State of Incorporation
DE
Related Filers
Polaris Venture Partners Founders' Fund VI, L.P. — 20 joint filings, latest 2024-05-31
Polaris Venture Partners VI, L.P. — 20 joint filings, latest 2024-05-31
PVP VI (AIV) Feeder Corp. Holding Partnership, L.P. — 9 joint filings, latest 2024-05-31
Polaris Venture Partners VI (AIV), L.P. — 9 joint filings, latest 2024-05-31
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
ALEC 10%+ Owner 10,952,350 $2.47 $27.05M -$15.00M 4 2023-09-13
EDIT 10%+ Owner 3,797,144 $3.03 $11.51M -$39.44M 4 2016-12-08

Recent Filings

8 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
2023-09-13 ALEC Sell (S) −2,500,000 -$15.00M EDGAR
2022-11-18 ALEC Other (J) −2,500,000 $0 EDGAR
2021-12-23 ALEC Other (J) −2,500,000 $0 EDGAR
2019-02-13 ALEC Conv (C) +64,290,970 $0 EDGAR
2016-12-08 EDIT Sell (S) −225,000 -$3.56M EDGAR
2016-12-07 EDIT Sell (S) −390,000 -$6.16M EDGAR
2016-11-16 EDIT Sell (S) −266,700 -$4.52M EDGAR
2016-09-12 EDIT Sell (S) −1,500,000 -$25.20M 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.