BOSTON, MA
AVALYN PHARMA INC.AVLN— Latest position per institution from SEC 13F filings
15
Institutional holders
37.38M
Total shares held
1.12B
Estimated value
1.87M
Avg. position size
FMR LLC
CIK 315066
Shares
5.84M
Value
192.10M
Filed
Jun 30, 2026
NOVO HOLDINGS A/S
CIK 1388325
Shares
3.88M
Value
127.84M
Filed
Jun 30, 2026
SR ONE CAPITAL MANAGEMENT, LP
CIK 1910264
Shares
3.31M
Value
108.92M
Filed
Jun 30, 2026
PERCEPTIVE ADVISORS LLC
CIK 1224962
Shares
2.68M
Value
88.07M
Filed
Jun 30, 2026
MONTANOVA CAPITAL, LLC
CIK 1569064
Shares
2.50M
Value
82.40M
Filed
Jun 30, 2026
NVP ASSOCIATES, LLC
CIK 1545692
Shares
2.27M
Value
74.68M
Filed
Jun 30, 2026
WELLINGTON MANAGEMENT GROUP LLP
CIK 902219
Shares
2.20M
Value
72.49M
Filed
Jun 30, 2026
PRICE T ROWE ASSOCIATES INC /MD/
CIK 80255
Shares
1.74M
Value
57.12K
Filed
Jun 30, 2026
CATALIO CAPITAL MANAGEMENT, LP
CIK 1958125
Shares
1.68M
Value
55.17M
Filed
Jun 30, 2026
T. ROWE PRICE INVESTMENT MANAGEMENT, INC.
CIK 1897612
Shares
1.60M
Value
52.76K
Filed
Jun 30, 2026
EVENTIDE ASSET MANAGEMENT, LLC
CIK 1442891
Shares
1.38M
Value
45.28M
Filed
Jun 30, 2026
BELLEVUE GROUP AG
CIK 1674546
Shares
1.35M
Value
44.44M
Filed
Jun 30, 2026
BLACKROCK, INC.
CIK 2012383
Shares
977.26K
Value
32.17M
Filed
Jun 30, 2026
PIVOTAL BIOVENTURE PARTNERS INVESTMENT ADVISOR LLC
CIK 1844645
Shares
966.79K
Value
31.83M
Filed
Jun 30, 2026
CITADEL ADVISORS LLC
CIK 1423053
Shares
959.10K
Value
31.57M
Filed
Jun 30, 2026
ANDERA PARTNERS
CIK 1757283
Shares
929.82K
Value
26.49M
Filed
Sep 30, 2026
JENNISON ASSOCIATES LLC
CIK 53417
Shares
812.75K
Value
26.76M
Filed
Jun 30, 2026
BRAIDWELL LP
CIK 1920938
Shares
801.39K
Value
26.38M
Filed
Jun 30, 2026
TPG GP A, LLC
CIK 1903793
Shares
773.07K
Value
25.45M
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
739.77K
Value
24.35M
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | FMR LLC | 315066 | 5.84M | 192.10M | Jun 30, 2026 |
| 2 | NOVO HOLDINGS A/S | 1388325 | 3.88M | 127.84M | Jun 30, 2026 |
| 3 | SR ONE CAPITAL MANAGEMENT, LP | 1910264 | 3.31M | 108.92M | Jun 30, 2026 |
| 4 | PERCEPTIVE ADVISORS LLC | 1224962 | 2.68M | 88.07M | Jun 30, 2026 |
| 5 | MONTANOVA CAPITAL, LLC | 1569064 | 2.50M | 82.40M | Jun 30, 2026 |
| 6 | NVP ASSOCIATES, LLC | 1545692 | 2.27M | 74.68M | Jun 30, 2026 |
| 7 | WELLINGTON MANAGEMENT GROUP LLP | 902219 | 2.20M | 72.49M | Jun 30, 2026 |
| 8 | PRICE T ROWE ASSOCIATES INC /MD/ | 80255 | 1.74M | 57.12K | Jun 30, 2026 |
| 9 | CATALIO CAPITAL MANAGEMENT, LP | 1958125 | 1.68M | 55.17M | Jun 30, 2026 |
| 10 | T. ROWE PRICE INVESTMENT MANAGEMENT, INC. | 1897612 | 1.60M | 52.76K | Jun 30, 2026 |
| 11 | EVENTIDE ASSET MANAGEMENT, LLC | 1442891 | 1.38M | 45.28M | Jun 30, 2026 |
| 12 | BELLEVUE GROUP AG | 1674546 | 1.35M | 44.44M | Jun 30, 2026 |
| 13 | BLACKROCK, INC. | 2012383 | 977.26K | 32.17M | Jun 30, 2026 |
| 14 | PIVOTAL BIOVENTURE PARTNERS INVESTMENT ADVISOR LLC | 1844645 | 966.79K | 31.83M | Jun 30, 2026 |
| 15 | CITADEL ADVISORS LLC | 1423053 | 959.10K | 31.57M | Jun 30, 2026 |
| 16 | ANDERA PARTNERS | 1757283 | 929.82K | 26.49M | Sep 30, 2026 |
| 17 | JENNISON ASSOCIATES LLC | 53417 | 812.75K | 26.76M | Jun 30, 2026 |
| 18 | BRAIDWELL LP | 1920938 | 801.39K | 26.38M | Jun 30, 2026 |
| 19 | TPG GP A, LLC | 1903793 | 773.07K | 25.45M | Jun 30, 2026 |
| 20 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 739.77K | 24.35M | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.