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SCHEDULE Filed 2025-04-02 Event 2025-03-31 SEC 0001104659-25-031241 →

Fortress Biotech, Inc. AVENUE THERAPEUTICS, INC. ATXI

Stake: 10.30% Shares: 328,746 CUSIP: 05360L403 Class: Common Stock, $0.0001 Par Value

Item 4 — Purpose of Transaction

The Reporting Person is party to that certain Amended and Restated Founders Agreement with the Issuer (as amended, the "Founders Agreement"), in connection with the Issuer's formation. Pursuant to the Founders Agreement, the Issuer pays to the Reporting Person an equity fee in the form of Issuer common stock equal to two and one-half percent (2.5%) of the gross amount of any Issuer equity or debt financing (the "Offering Equity Grant"). Pursuant to the Issuer's Third Amended and Restated Certificate of Incorporation (as amended, the "Charter"), the Issuer also issues annually to the Reporting Person shares of common stock equal to two and one-half percent (2.5%) of the fully-diluted outstanding equity of the Issuer, as measured as of the date of such issuance (the "Annual Equity Grant"). The foregoing description of the Charter and Founders Agreement are qualified in its entirety by reference to the full text of the Charter and Founders Agreement which are incorporated herein by reference as Exhibits 7.01 and 7.03.

Cross-References

Insider Activity (last 365d)
0 transactions
0 buys · 0 sales · 0 awards/exercises
Issuer Cluster
4 13D/G filings on this issuer
3 other filings besides this one
Filer Track Record
9 filings by this filer
8 other filings in the data moat
Short Interest · settle 2026-03-31
DTC 1.00
5,290 shares short · +735.7% vs prior

Post-Filing Returns · since 2025-03-31 on ATXI

+1 day
-3.3%
+5 days
-15.0%
+30 days
-19.7%
+60 days
-27.4%
+90 days
-33.1%
+180 days
+162.7%

Anchor price 0.30 on closest trading day on/after 2025-03-31. Source: Yahoo Finance daily adj_close (split + dividend adjusted).

Other 13D/G Filings on AVENUE THERAPEUTICS, INC.

FiledFormFilerStakeShares
2026-01-06 SCHEDULE Fortress Biotech, Inc. 13.40% 439,955 view →
2025-01-03 SCHEDULE Fortress Biotech, Inc. 13.80% 295,022 view →
2024-01-02 SC SABBY MANAGEMENT, LLC view →

Other Filings by Fortress Biotech, Inc.

FiledFormIssuerStakeShares
2026-01-06 SCHEDULE AVENUE THERAPEUTICS, INC. ATXI 13.40% 439,955 view →
2026-01-05 SCHEDULE MUSTANG BIO, INC. MBIO 8.00% 537,243 view →
2025-04-02 SCHEDULE MUSTANG BIO, INC. MBIO 7.90% 199,191 view →
2025-01-03 SCHEDULE AVENUE THERAPEUTICS, INC. ATXI 13.80% 295,022 view →
2025-01-03 SCHEDULE MUSTANG BIO, INC. MBIO 12.40% 6,569,450 view →
2025-01-03 SCHEDULE Checkpoint Therapeutics, Inc. 13.50% 6,903,749 view →
2024-10-01 SC Checkpoint Therapeutics, Inc. view →
2023-07-06 SC Checkpoint Therapeutics, Inc. view →

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