Atlas Venture Fund X, L.P.

10% owner at Q32 Bio Inc. · on record since Mar 27, 2024
10% owner at Dianthus Therapeutics, Inc. /DE/ · on record since Jun 27, 2018
10% owner at Aptiv Solutions, Inc. · on record since Jun 25, 2018
10% owner at Replimune Group, Inc. · on record since Jul 26, 2018
10% owner at Generation Bio Co. · on record since Jun 18, 2020
10% owner at Kymera Therapeutics, Inc. · on record since Aug 25, 2020
10% owner at ALERE INC. · on record since Mar 25, 2021
10% owner at Disc Medicine, Inc. · on record since Feb 11, 2021

Insider trading activity of Atlas Venture Fund X, L.P.

Transactions on record: 33; since Jul 26, 2018

Open-market buys: 1; $15M

Open-market sells: 11; $27.7M

Companies traded: 6; last filing Sep 18, 2023

Figures computed from official regulatory filings — .

Companies where Atlas Venture Fund X, L.P. has traded

Disc Medicine, Inc.3 tx · $19M · Sep 18, 2023
Kymera Therapeutics, Inc.16 tx · $8.7M · Nov 1, 2022
Generation Bio Co.4 tx · Mar 18, 2021
Dianthus Therapeutics, Inc. /DE/1 tx · Feb 16, 2021
Replimune Group, Inc.8 tx · Sep 17, 2020
Aptiv Solutions, Inc.1 tx · $15M · Jul 23, 2019

Track record of Atlas Venture Fund X, L.P.

Insufficient history for a statistical track record (fewer than 5 open-market buys).

Transaction history of Atlas Venture Fund X, L.P.

Co-insiders of Atlas Venture Fund X, L.P.

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Disc Medicine, Inc.Listing on record	Sep 18, 2023	Sell	-2,115	53.22 USD	$112.6K		SEC
Disc Medicine, Inc.Listing on record	Sep 18, 2023	Sell	-94,440	53.05 USD	$5M	Unusual size	SEC
Disc Medicine, Inc.Listing on record	Sep 18, 2023	Sell	-260,894	53.16 USD	$13.9M	Unusual size	SEC
Kymera Therapeutics, Inc.Listing on record	Nov 1, 2022	Sell	-3,727	31.08 USD	$115.8K		SEC
Kymera Therapeutics, Inc.Listing on record	Nov 1, 2022	Sell	-19,915	30.00 USD	$597.5K		SEC
Kymera Therapeutics, Inc.Listing on record	Nov 1, 2022	Sell	-94,239	30.23 USD	$2.8M		SEC
Kymera Therapeutics, Inc.Listing on record	Nov 1, 2022	Sell	-1,044	31.08 USD	$32.4K		SEC
Kymera Therapeutics, Inc.Listing on record	Nov 1, 2022	Sell	-26,383	30.23 USD	$797.6K		SEC
Kymera Therapeutics, Inc.Listing on record	Nov 1, 2022	Sell	-71,135	30.00 USD	$2.1M		SEC
Kymera Therapeutics, Inc.Listing on record	Nov 1, 2022	Sell	-56,455	30.57 USD	$1.7M		SEC
Kymera Therapeutics, Inc.Listing on record	Nov 1, 2022	Sell	-15,804	30.57 USD	$483.1K		SEC
Kymera Therapeutics, Inc.Listing on record	May 18, 2021	Other	-1,122,619	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Generation Bio Co.Listing unverified	Mar 18, 2021	Other	-1,000,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Kymera Therapeutics, Inc.Listing on record	Feb 22, 2021	Other	-1,063,351	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Dianthus Therapeutics, Inc. /DE/Listing on record	Feb 16, 2021	Other	-968,726	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Replimune Group, Inc.Listing on record	Sep 17, 2020	Other	-445,339	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Kymera Therapeutics, Inc.Listing on record	Aug 25, 2020	OtherD (derivative)	-7,000,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Kymera Therapeutics, Inc.Listing on record	Aug 25, 2020	OtherD (derivative)	-1,774,624	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Kymera Therapeutics, Inc.Listing on record	Aug 25, 2020	OtherD (derivative)	-3,000,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Kymera Therapeutics, Inc.Listing on record	Aug 25, 2020	Other	1,112,686	—	n/a (No price was disclosed in the filing)		SEC
Kymera Therapeutics, Inc.Listing on record	Aug 25, 2020	Other	7,196,584	—	n/a (No price was disclosed in the filing)		SEC
Kymera Therapeutics, Inc.Listing on record	Aug 25, 2020	OtherD (derivative)	-1,477,832	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Replimune Group, Inc.Listing on record	Jul 7, 2020	Other	-445,339	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Replimune Group, Inc.Listing on record	Jun 18, 2020	Other	-445,339	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Generation Bio Co.Listing unverified	Jun 18, 2020	OtherD (derivative)	-15,051,020	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Disc Medicine, Inc.Listing on record	Sep 18, 2023	Sell	-2,115	53.22 USD	$112.6K		SEC
Disc Medicine, Inc.Listing on record	Sep 18, 2023	Sell	-94,440	53.05 USD	$5M	Unusual size	SEC
Disc Medicine, Inc.Listing on record	Sep 18, 2023	Sell	-260,894	53.16 USD	$13.9M	Unusual size	SEC
Kymera Therapeutics, Inc.Listing on record	Nov 1, 2022	Sell	-3,727	31.08 USD	$115.8K		SEC
Kymera Therapeutics, Inc.Listing on record	Nov 1, 2022	Sell	-19,915	30.00 USD	$597.5K		SEC
Kymera Therapeutics, Inc.Listing on record	Nov 1, 2022	Sell	-94,239	30.23 USD	$2.8M		SEC
Kymera Therapeutics, Inc.Listing on record	Nov 1, 2022	Sell	-1,044	31.08 USD	$32.4K		SEC
Kymera Therapeutics, Inc.Listing on record	Nov 1, 2022	Sell	-26,383	30.23 USD	$797.6K		SEC
Kymera Therapeutics, Inc.Listing on record	Nov 1, 2022	Sell	-71,135	30.00 USD	$2.1M		SEC
Kymera Therapeutics, Inc.Listing on record	Nov 1, 2022	Sell	-56,455	30.57 USD	$1.7M		SEC
Kymera Therapeutics, Inc.Listing on record	Nov 1, 2022	Sell	-15,804	30.57 USD	$483.1K		SEC
Kymera Therapeutics, Inc.Listing on record	May 18, 2021	Other	-1,122,619	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Generation Bio Co.Listing unverified	Mar 18, 2021	Other	-1,000,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Kymera Therapeutics, Inc.Listing on record	Feb 22, 2021	Other	-1,063,351	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Dianthus Therapeutics, Inc. /DE/Listing on record	Feb 16, 2021	Other	-968,726	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Replimune Group, Inc.Listing on record	Sep 17, 2020	Other	-445,339	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Kymera Therapeutics, Inc.Listing on record	Aug 25, 2020	OtherD (derivative)	-7,000,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Kymera Therapeutics, Inc.Listing on record	Aug 25, 2020	OtherD (derivative)	-1,774,624	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Kymera Therapeutics, Inc.Listing on record	Aug 25, 2020	OtherD (derivative)	-3,000,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Kymera Therapeutics, Inc.Listing on record	Aug 25, 2020	Other	1,112,686	—	n/a (No price was disclosed in the filing)		SEC
Kymera Therapeutics, Inc.Listing on record	Aug 25, 2020	Other	7,196,584	—	n/a (No price was disclosed in the filing)		SEC
Kymera Therapeutics, Inc.Listing on record	Aug 25, 2020	OtherD (derivative)	-1,477,832	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Replimune Group, Inc.Listing on record	Jul 7, 2020	Other	-445,339	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Replimune Group, Inc.Listing on record	Jun 18, 2020	Other	-445,339	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Generation Bio Co.Listing unverified	Jun 18, 2020	OtherD (derivative)	-15,051,020	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC