Security key
03770N101
Apogee Therapeutics, Inc. - COMMON STOCK (APGE)
CUSIP: 03770N101
Q1 2026 13F Holders as of 31 Mar 2026
- Security type / class
- Equity / COMMON STOCK
- Total 13F shares
- 79,061,115
- Total 13F value
- $6,638,906,729
- Share change
- +8,638,668
- Put/Call ratio
- 41%
- SEC-reported price per share
- $84.17
- Number of holders
- 222
- Value change
- +$743,266,174
- Number of buys
- 144
- Number of sells
- 83
- Shares outstanding
- 61,257,262
Holder snapshot
7 signals
Show 1 more signal
Security identity
1 source field
Report period
Q1 2026
Institutions
222
Top holders
10
APGE full security history
Ownership snapshot
Full 13F holder table
Previous quarter: Q4 2025
Apogee Therapeutics, Inc. SEC filings
Apogee Therapeutics, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 03770N101
Recent filing periods:
Ownership snapshot
Top reported holders of APGE - Apogee Therapeutics, Inc. - COMMON STOCK (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
T. Rowe Price Investment ...
Disclosed value leader
T. Rowe Price Investment ...
Comparable rows
15/15
Latest evidence
31 Mar 2026
13D/G
13F
3/4/5
Lead comparable stake: 17%
13D/G row: T. Rowe Price Investment Management, Inc.
Showing 1-6 of 15 holder rows.
Quick read
T. Rowe Price Investment Management, Inc. leads the comparable SEC ownership view at 17%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Comparable ownership
Top 5
T. Rowe Price Investment Manageme...
17%
FMR LLC
15%
Fairmount Funds Management LLC
10%
WELLINGTON MANAGEMENT GROUP LLP
8.7%
BlackRock, Inc.
5.5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| T. Rowe Price Investment Management, Inc. |
13D/G
13F
Company
|
17%
|
$866,203,754
10,291,220 shares
|
+$343,190,907 | 31 Mar 2026 |
| FMR LLC |
13F
13D/G
Company
|
15%
from 13D/G
|
$620,825,834
8,225,038 shares
|
— | 31 Dec 2025 |
| Fairmount Funds Management LLC |
13D/G
3/4/5
13F
Peter Evan Harwin · Director · Company
|
10%
|
$482,139,697
6,764,974 shares
|
+$51,168,083 | 26 Mar 2026 |
| WELLINGTON MANAGEMENT GROUP LLP |
13D/G
13F
Company
|
8.7%
|
$374,980,215
4,746,585 shares
|
-$10,946,319 | 31 Dec 2025 |
| BlackRock, Inc. |
13F
13D/G
Company
|
5.5%
from 13D/G
|
$285,615,865
3,783,994 shares
|
— | 31 Dec 2025 |
| RTW INVESTMENTS, LP |
13D/G
13F
Company
|
4.9%
|
$214,255,663
2,712,097 shares
|
$0 | 31 Dec 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
222
Shares
79,061,115
Rows available
222
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
206
Q1 2026 holders
222
Holder diff
16
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 value | Q1 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend