Barclays PLC
· Exited
Change
−69K
Δ Own
−100.0%
Date
Q4 2025
YM
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Barclays PLC
· Exited
Change
−69K
Δ Own
−100.0%
Date
Q4 2025
|
Barclays PLC | Exited· Q4 2025 | – | −69K | −100.0% | Q4 2025 | |||||
|
Brooklyn Investment Group
· Exited
Change
−16K
Δ Own
−100.0%
Date
Q4 2025
|
Brooklyn Investment Group | Exited· Q4 2025 | – | −16K | −100.0% | Q4 2025 | |||||
|
Ifp Advisors, Inc
· Exited
Change
−332
Δ Own
−100.0%
Date
Q4 2025
|
Ifp Advisors, Inc | Exited· Q4 2025 | – | −332 | −100.0% | Q4 2025 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Hamill Laura
· Director
Other Form 4 events
-$50K
|
Hamill Laura | Director | Other Form 4 events | $8.60 | -6K | -$50K | 0 | – | Sep 16, 2025 | Sep 19, 2025 | |||||||||
|
Hamill Laura
· Director
7 operations
-141K
|
Hamill Laura | Director | 7 operations | – | -141K | – | 0 | – | Sep 16, 2025 | Sep 19, 2025 | |||||||||
|
Gad Thomas
· Director
3 operations
-$3.2M
|
Gad Thomas | Director | 3 operations | $8.60 | -373K | -$3.2M | 0 | – | Sep 16, 2025 | Sep 18, 2025 | |||||||||
|
Gad Thomas
· Director
15 operations
-1.4M
|
Gad Thomas | Director | 15 operations | – | -1.4M | – | 0 | – | Sep 16, 2025 | Sep 18, 2025 | |||||||||
|
Wg Biotech Aps
· Director, 10% Owner
Other Form 4 events
-$39M
|
Wg Biotech Aps | Director, 10% Owner | Other Form 4 events | $8.60 | -4.6M | -$39M | 0 | – | Sep 16, 2025 | Sep 18, 2025 | |||||||||
|
Gentilcore Douglas J.
· Officer
Shares transferred outside the market (D), often for tax or as a gift, not a market sale
-143K
|
Gentilcore Douglas J. | Officer | Shares transferred outside the market (D), often for tax or as a gift, not a market sale | – | -143K | – | 0 | – | Sep 16, 2025 | Sep 18, 2025 | |||||||||
|
Gill David N.
· Director
10 operations
-171K
|
Gill David N. | Director | 10 operations | $8.60 | -171K | – | 0 | – | Sep 16, 2025 | Sep 18, 2025 | |||||||||
|
Tyagi Ashu
· Director
Other Form 4 events
-$50K
|
Tyagi Ashu | Director | Other Form 4 events | $8.60 | -6K | -$50K | 0 | – | Sep 16, 2025 | Sep 18, 2025 | |||||||||
|
Tyagi Ashu
· Director
9 operations
-173K
|
Tyagi Ashu | Director | 9 operations | – | -173K | – | 0 | – | Sep 16, 2025 | Sep 18, 2025 | |||||||||
|
Pfreundschuh Peter P.
· Officer
5 operations
-343K
|
Pfreundschuh Peter P. | Officer | 5 operations | – | -343K | – | 0 | – | Sep 16, 2025 | Sep 18, 2025 | |||||||||
|
Rossi Michael J.
· Director, Officer
Other Form 4 events
-$69K
|
Rossi Michael J. | Director, Officer | Other Form 4 events | $8.60 | -8K | -$69K | 0 | – | Sep 16, 2025 | Sep 18, 2025 | |||||||||
|
Rossi Michael J.
· Director, Officer
9 operations
-1.3M
|
Rossi Michael J. | Director, Officer | 9 operations | – | -1.3M | – | 0 | – | Sep 16, 2025 | Sep 18, 2025 | |||||||||
|
Wilms Joris
· Officer
Other Form 4 events
-$110K
|
Wilms Joris | Officer | Other Form 4 events | $8.60 | -13K | -$110K | 0 | – | Sep 16, 2025 | Sep 18, 2025 | |||||||||
|
Wilms Joris
· Officer
12 operations
-338K
|
Wilms Joris | Officer | 12 operations | – | -338K | – | 0 | – | Sep 16, 2025 | Sep 18, 2025 | |||||||||
|
Wedell-Wedellsborg Johan
· Director, 10% Owner
2 operations
-$39M
|
Wedell-Wedellsborg Johan | Director, 10% Owner | 2 operations | $8.60 | -4.6M | -$39M | 0 | – | Sep 16, 2025 | Sep 18, 2025 | |||||||||
3 reporting institutions disclosed YMAB position changes in the Q4 2025 snapshot.
For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q4 2025.
An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.
Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.
Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.
A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.