Ra Capital Management, L.P.
· New
Change
+17.8M
Date
Q1 2026
IP
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Ra Capital Management, L.P.
· New
Change
+17.8M
Date
Q1 2026
|
Ra Capital Management, L.P. | New· Q1 2026 | – | +17.8M | – | Q1 2026 | |||||
|
Tcg Crossover Management, LLC
· New
Change
+17.8M
Date
Q1 2026
|
Tcg Crossover Management, LLC | New· Q1 2026 | – | +17.8M | – | Q1 2026 | |||||
|
Versant Venture Management, LLC
· New
Change
+12.2M
Date
Q1 2026
|
Versant Venture Management, LLC | New· Q1 2026 | – | +12.2M | – | Q1 2026 | |||||
|
Deep Track Capital, LP
· New
Change
+9.5M
Date
Q1 2026
|
Deep Track Capital, LP | New· Q1 2026 | – | +9.5M | – | Q1 2026 | |||||
|
Commodore Capital LP
· New
Change
+8.7M
Date
Q1 2026
|
Commodore Capital LP | New· Q1 2026 | – | +8.7M | – | Q1 2026 | |||||
|
Rtw Investments, LP
· New
Change
+8.7M
Date
Q1 2026
|
Rtw Investments, LP | New· Q1 2026 | – | +8.7M | – | Q1 2026 | |||||
|
Venrock Adviser, LLC
· New
Change
+8.7M
Date
Q1 2026
|
Venrock Adviser, LLC | New· Q1 2026 | – | +8.7M | – | Q1 2026 | |||||
|
Balyasny Asset Management L.P.
· New
Change
+5.0M
Date
Q1 2026
|
Balyasny Asset Management L.P. | New· Q1 2026 | – | +5.0M | – | Q1 2026 | |||||
|
Vanguard
· Added
Change
+4.3M
Date
Q1 2026
|
Vanguard | Added· Q1 2026 | – | +4.3M | – | Q1 2026 | |||||
|
Millennium Management LLC
· Added
Change
+4.1M
Date
Q1 2026
|
Millennium Management LLC | Added· Q1 2026 | – | +4.1M | – | Q1 2026 | |||||
|
Woodline Partners LP
· New
Change
+3.0M
Date
Q1 2026
|
Woodline Partners LP | New· Q1 2026 | – | +3.0M | – | Q1 2026 | |||||
|
Seven Fleet Capital Management LP
· New
Change
+2.9M
Date
Q1 2026
|
Seven Fleet Capital Management LP | New· Q1 2026 | – | +2.9M | – | Q1 2026 | |||||
|
Spruce Street Capital LP
· Added
Change
+2.6M
Date
Q1 2026
|
Spruce Street Capital LP | Added· Q1 2026 | – | +2.6M | – | Q1 2026 | |||||
|
Trails Edge Capital Partners, LP
· New
Change
+2.4M
Date
Q1 2026
|
Trails Edge Capital Partners, LP | New· Q1 2026 | – | +2.4M | – | Q1 2026 | |||||
|
Adage Capital Partners Gp, L.L.C.
· Added
Change
+2.0M
Date
Q1 2026
|
Adage Capital Partners Gp, L.L.C. | Added· Q1 2026 | – | +2.0M | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Russotti Gregory
· Officer
Sell
−$6K
|
Russotti Gregory | Officer | Sell | $2.23 | −3K | −$6K | 512K | – | Jun 12, 2026 | Jun 15, 2026 | |||||||||
|
Carr Douglas
· Officer
Sell
−$4K
|
Carr Douglas | Officer | Sell | $2.23 | −2K | −$4K | 505K | – | Jun 12, 2026 | Jun 15, 2026 | |||||||||
|
Pfeiffenberger Brent
· Director
Tax withholding or exercise payment (F)
-$31K
|
Pfeiffenberger Brent | Director | Tax withholding or exercise payment (F) | $2.24 | -14K | -$31K | 3.7M | – | Jun 11, 2026 | Jun 15, 2026 | |||||||||
|
Cowan Chad
· Officer
Tax withholding or exercise payment (F)
-$802
|
Cowan Chad | Officer | Tax withholding or exercise payment (F) | $2.24 | -358 | -$802 | 1.2M | – | Jun 11, 2026 | Jun 15, 2026 | |||||||||
|
Riva Alessandro
· Director
Grant (A)
74K
|
Riva Alessandro | Director | Grant (A) | – | 74K | – | 74K | – | Jun 11, 2026 | Jun 12, 2026 | |||||||||
|
Quimi Daphne
· Director
Grant (A)
74K
|
Quimi Daphne | Director | Grant (A) | – | 74K | – | 74K | – | Jun 11, 2026 | Jun 12, 2026 | |||||||||
|
Murphy Martin Patrick
· Director
Grant (A)
74K
|
Murphy Martin Patrick | Director | Grant (A) | – | 74K | – | 74K | – | Jun 11, 2026 | Jun 12, 2026 | |||||||||
|
Lee Han Myung
· Director
Grant (A)
74K
|
Lee Han Myung | Director | Grant (A) | – | 74K | – | 74K | – | Jun 11, 2026 | Jun 12, 2026 | |||||||||
|
Blackwell Kimberly
· Director
Grant (A)
74K
|
Blackwell Kimberly | Director | Grant (A) | – | 74K | – | 74K | – | Jun 11, 2026 | Jun 12, 2026 | |||||||||
|
Russotti Gregory
· Officer
Sell
−$1K
|
Russotti Gregory | Officer | Sell | $2.11 | −524 | −$1K | 515K | – | Jun 8, 2026 | Jun 9, 2026 | |||||||||
|
Carr Douglas
· Officer
Sell
−$526
|
Carr Douglas | Officer | Sell | $2.11 | −249 | −$526 | 507K | – | Jun 8, 2026 | Jun 9, 2026 | |||||||||
|
Pfeiffenberger Brent
· Director
Tax withholding or exercise payment (F)
-$986
|
Pfeiffenberger Brent | Director | Tax withholding or exercise payment (F) | $2.13 | -463 | -$986 | 3.7M | – | Jun 5, 2026 | Jun 9, 2026 | |||||||||
|
Pfeiffenberger Brent
· Director
Tax withholding or exercise payment (F)
-$73K
|
Pfeiffenberger Brent | Director | Tax withholding or exercise payment (F) | $2.34 | -31K | -$73K | 3.7M | – | May 15, 2026 | May 19, 2026 | |||||||||
|
Carr Douglas
· Officer
Sell
−$618
|
Carr Douglas | Officer | Sell | $2.34 | −264 | −$618 | 507K | – | May 4, 2026 | May 6, 2026 | |||||||||
|
Cowan Chad
· Officer
Tax withholding or exercise payment (F)
-$3K
|
Cowan Chad | Officer | Tax withholding or exercise payment (F) | $2.19 | -1K | -$3K | 1.2M | – | Apr 1, 2026 | Apr 3, 2026 | |||||||||
N
A
M
M
G
A
62 reporting institutions disclosed IPSC position changes in the Q1 2026 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 Q1 2026.
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.