Flagship Ventures 2007 General Partner LLC

CIK 1508053 · last filed 2019-05-06

Flagship Ventures 2007 General Partner LLC is a corporate insider who has filed 3 SEC Form 4 insider transactions across 3 companies since 2013. The most recent filing, for TMDX, was dated May 6, 2019. Across all open-market trades the lifetime net is +$3.7M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $17.2M 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.

Disclosed Exposure

$17.19M

Companies

3

Total Filings

3

Lifetime Open-Market Net

$3.66M

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
TMDX	10%+ Owner	214,285	$80.21	$17.19M	$0	1	2019-05-06
Carisma Therapeutics Inc. (EBIO) Delisted	10%+ Owner	1,173,149	—	—	$26.51M	1	2014-02-13
Receptos, Inc. (RCPT) Delisted	10%+ Owner	1,714,755	—	—	-$22.85M	1	2013-11-18

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
2019-05-06	TMDX	Mixed	+4,198,480	$0	EDGAR
2014-02-13	Carisma Therapeutics Inc. (EBIO) Delisted	Mixed	+20,675,011	$26.51M	EDGAR
2013-11-18	Receptos, Inc. (RCPT) Delisted	Sell (S)	−923,148	-$22.85M	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.