Security key
359616109
Fulcrum Therapeutics, Inc. - Common Stock (FULC)
CUSIP: 359616109
Q1 2026 13F Holders as of 31 Mar 2026
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 71,717,233
- Total 13F value
- $550,143,756
- Share change
- +2,396,409
- Put/Call ratio
- 25%
- SEC-reported price per share
- $7.67
- Number of holders
- 169
- Value change
- +$6,377,706
- Number of buys
- 105
- Number of sells
- 76
- Shares outstanding
- 74,324,467
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2026
Institutions
169
Top holders
10
FULC full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2026
Fulcrum Therapeutics, Inc. SEC filings
Fulcrum Therapeutics, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 359616109
Recent filing periods:
Ownership snapshot
Top reported holders of FULC - Fulcrum 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
Adage Capital Management,...
Disclosed value leader
RA CAPITAL MANAGEMENT, L.P.
Comparable rows
1/15
Latest evidence
31 Dec 2025
13D/G
3/4/5
13F
Lead comparable stake: 4.5%
14 rows are not safely comparable across share classes.
13D/G row: Adage Capital Management, L.P.
Showing 1-6 of 15 holder rows.
Quick read
Adage Capital Management, L.P. leads the comparable SEC ownership view at 4.5%.
1 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.
Open SEC evidence
Opens Adage Capital Management, L.P.'s linked filing trail.
Comparable ownership
Top 1
Adage Capital Management, L.P.
4.5%
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 |
|---|---|---|---|---|---|
| Adage Capital Management, L.P. |
13D/G
|
4.5%
Reported 13D/G
· 30 Sep 2025
|
$22,374,400
2,432,000 shares
|
-$19,844,400 | 30 Sep 2025 |
| RA CAPITAL MANAGEMENT, L.P. |
3/4/5
13F
10%+ Owner · Company
|
—
denominator unverified
|
$90,688,320
6,053,960 shares
|
-$58,377,021 | 08 Dec 2025 |
| Third Rock Ventures III, L.P. |
3/4/5
10%+ Owner
|
—
denominator unverified
|
$14,250,729
4,305,356 shares
|
— | 13 Dec 2022 |
| Mark J. Levin |
3/4/5
Director, 10%+ Owner
|
—
denominator unverified
|
$13,365,787
4,038,002 shares
|
— | 10 Nov 2021 |
| MONTANOVA CAPITAL, LLC |
13F
Company
|
—
denominator unverified
|
$74,206,165
6,561,111 shares
|
— | 31 Dec 2025 |
| TCG Crossover Management, LLC |
13F
Company
|
—
denominator unverified
|
$59,377,500
5,250,000 shares
|
— | 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
169
Shares
71,717,233
Rows available
169
| 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 Q1 2026 Across Filers
Q1 2026 holders
169
Q1 2026 holders
169
Holder diff
0
| Investor | Q1 2026 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q1 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend