Apogee Therapeutics, Inc.
US ˙ NasdaqGM ˙ US03770N1019

SecurityAPGE / Apogee Therapeutics, Inc.
InstitutionState Street Corp
Latest Disclosed Ownership2,162,964 shares
Latest Disclosed Value $ 182,056,680
State Street Corp reports 27.97% increase in ownership of APGE / Apogee Therapeutics, Inc.

On May 15, 2026 - State Street Corp filed a 13F-HR form disclosing ownership of 2,162,964 shares of Apogee Therapeutics, Inc. (US:APGE) valued at $182,056,680 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,690,186 shares of Apogee Therapeutics, Inc.. This represents a change in shares of 27.97% during the quarter. The current value of the position is $196,613,428 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F APOGEE THERAPEUTICS COM 03770N101 2,162,964 472,778 27.97 182,057 42.71 0.0063
2026-02-13 2025-12-31 13F APOGEE THERAPEUTICS COM 03770N101 1,690,186 34,638 2.09 127,575 93.96 0.0043
2025-11-14 2025-09-30 13F APOGEE THERAPEUTICS COM 03770N101 1,655,548 396,290 31.47 65,775 20.27 0.0023
2025-08-14 2025-06-30 13F APOGEE THERAPEUTICS COM 03770N101 1,259,258 -54,492 -4.15 54,690 11.43 0.0020
2025-05-15 2025-03-31 13F APOGEE THERAPEUTICS COM 03770N101 1,313,750 -153,364 -10.45 49,082 -26.15 0.0020
2025-02-14 2024-12-31 13F APOGEE THERAPEUTICS COM 03770N101 1,467,114 55,475 3.93 66,460 -19.85 0.0026
2024-11-14 2024-09-30 13F APOGEE THERAPEUTICS COM 03770N101 1,411,639 -149,723 -9.59 82,920 34.96 0.0034
2024-08-14 2024-06-30 13F APOGEE THERAPEUTICS COM 03770N101 1,561,362 213,565 15.85 61,440 -31.40 0.0027
2024-05-15 2024-03-31 13F APOGEE THERAPEUTICS COM 03770N101 1,347,797 968,527 255.37 89,561 745.23 0.0040
2024-02-14 2023-12-31 13F APOGEE THERAPEUTICS COM 03770N101 379,270 175,753 86.36 10,597 144.49 0.0005
2023-11-14 2023-09-30 13F APOGEE THERAPEUTICS COM 03770N101 203,517 203,517 4,335 0.0002
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.