Atlas Venture Life Science Advisors, LLC
Position in KRRO — Korro Bio, Inc.
CIK 1917529
CAMBRIDGE, MA
Position in KRRO
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$12,872,526
+$3,763,963 QoQ
Shares Held
1,137,149
0.0% QoQ
Ownership
7.88%
of shares outstanding
% of Portfolio
1.63%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2023
10 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in KRRO Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026Atlas Venture Life Science Advisors, LLC holds $790,032,313 across 6 Biotechnology names. KRRO ranks #6 (1.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | KYMR |
Kymera Therapeutics, Inc.
|
4,578,008 | $381,302,286 | |
| 2 | DYN |
Dyne Therapeutics, Inc.
|
9,130,465 | $165,535,330 | |
| 3 | SION |
Sionna Therapeutics, Inc.
|
2,995,602 | $120,093,684 | |
| 4 | IRON |
Disc Medicine, Inc.
|
1,513,875 | $96,797,167 | |
| 5 | QTTB |
Q32 Bio Inc.
|
2,092,106 | $13,431,320 | |
| 6 | KRRO |
Korro Bio, Inc.
This page
|
1,137,149 | $12,872,526 |
All Filings in KRRO
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10 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $12,872,526 | 1,137,149 | Shares | Sole | 2026-05-14 | |
| 2025-12-31 | $9,108,563 | 1,137,149 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $54,458,065 | 1,137,149 | Shares | Sole | 2025-11-13 | |
| 2025-06-30 | $14,202,991 | 1,137,149 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $19,797,764 | 1,137,149 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $43,291,262 | 1,137,149 | Shares | Sole | 2025-02-06 | |
| 2024-09-30 | $38,003,519 | 1,137,149 | Shares | Sole | 2024-11-13 | |
| 2024-06-30 | $38,515,236 | 1,137,149 | Shares | Sole | 2024-08-09 | |
| 2024-03-31 | $100,736,280 | 1,119,292 | Shares | Sole | 2024-05-06 | |
| 2023-12-31 | $53,647,665 | 1,119,292 | Shares | Sole | 2024-02-09 | |
| No filing history on record for this holder in this stock. | ||||||