Atlas Venture Opportunity Fund I, L.P.

CIK 1759241 · last filed 2022-11-01

Atlas Venture Opportunity Fund I, L.P. is a corporate insider who has filed 7 SEC Form 4 insider transactions across 6 companies since 2019. The most recent filing shows the insider sold $52.4M of KYMR on Nov 1, 2022. Across all open-market trades the lifetime net is −$54.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $591.0M 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

$590.99M

Companies

6

Total Filings

7

Lifetime Open-Market Net

-$54.65M

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
KYMR 10%+ Owner 6,784,648 $86.20 $584.87M -$52.41M 1 2022-11-01
Day One Biopharmaceuticals, Inc. (DAWN) Delisted 10%+ Owner 793,116 $21.53 $17.08M $0 1 2022-07-06
XLO 10%+ Owner 735,942 $8.31 $6.12M $6.00M 1 2021-10-26
Generation Bio Co. (GBIO) Delisted 10%+ Owner 7,111,939 $5.34 $37.98M -$8.24M 1 2021-09-29
ImageneBio, Inc. (IKNA) Delisted 10%+ Owner 2,901,609 $17.16 $49.79M $0 1 2021-04-01
Akero Therapeutics, Inc. (AKRO) Delisted 10%+ Owner 404,079 $54.65 $22.08M $0 2 2020-02-10

Recent Filings

7 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2022-11-01 KYMR Sell (S) −1,732,212 -$52.41M EDGAR
2022-07-06 Day One Biopharmaceuticals, Inc. (DAWN) Delisted Other (J) −198,280 $0 EDGAR
2021-10-26 XLO Mixed +5,466,058 $6.00M EDGAR
2021-09-29 Generation Bio Co. (GBIO) Delisted Sell (S) −324,352 -$8.24M EDGAR
2021-04-01 ImageneBio, Inc. (IKNA) Delisted Conv (C) +42,753,249 $0 EDGAR
2020-02-10 Akero Therapeutics, Inc. (AKRO) Delisted Other (J) −50,510 $0 EDGAR
2019-12-19 Akero Therapeutics, Inc. (AKRO) Delisted Other (J) −1,141,948 $0 EDGAR
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.