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Disclosery

FULC FULCRUM THERAPEUTICS INC

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COMMON STOCK (common), issuer CIK 1680581

162 managers (169 13F filers) reported a position in FULC shares at 2026-03-31, 71,717,284 shares in all. 32 filers opened a position and 38 filers sold out during the quarter.

Managers
162
13F filers
169
New
32
Added
74
Reduced
38
Sold out
38
Shares held by filers
71,717,284

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
MONTANOVA CAPITAL, LLC6,561,111$50.3M1.36%013F-HRTimeline
RA CAPITAL MANAGEMENT, L.P.in group RA CAPITAL MANAGEMENT, L.P.6,053,960$46.4M0.49%013F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.5,390,593$41.3M<0.01%+1,126,83213F-HRTimelineGroup
TCG Crossover Management, LLC5,250,000$40.3M1.15%013F-HRTimeline
VANGUARD GROUP INCgroup of 5 filers holding3,676,870$28.2M+3,663,712Timeline
BRAIDWELL LP3,134,922$24M0.8%+73,70013F-HRTimeline
Nantahala Capital Management, LLCin group Nantahala Capital Management,…3,050,040$23.4M1.46%-1,243,30613F-HRTimelineGroup
Siren, L.L.C.in group Siren, L.L.C.2,350,000$18M0.5%+400,00013F-HRTimelineGroup
First Turn Management, LLC2,256,109$17.3M1.93%+363,42613F-HRTimeline
Aberdeen Group plcin group Aberdeen Group plc2,211,953$17M0.03%+957,92613F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.2,074,855$15.9M0.03%-323,37713F-HRTimelineGroup
GSK plc1,785,714$13.7M2.29%013F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management1,779,946$13.7M0.03%+809,50713F-HRTimelineGroup
Jones Hill Capital LP1,771,926$13.6M2.91%13F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.1,623,281$12.5M0.01%-290,47413F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP1,549,851$11.9M<0.01%+544,50613F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,486,542$11.4M<0.01%+380,72913F-HRTimelineGroup
Alyeska Investment Group, L.P.in group Alyeska Investment Group, L.P.1,328,449$10.2M0.03%new13F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC1,292,486$9.91M0.01%+85,48213F-HRTimelineGroup
Assenagon Asset Management S.A.1,193,873$9.16M0.01%new13F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP1,130,281$8.66M<0.01%+79,15713F-HRTimelineGroup
Vestal Point Capital, LP1,100,000$8.44M0.24%+150,00013F-HRTimeline
Ikarian Capital, LLCin group Ikarian Capital, LLC1,049,161$8.05M1.15%-326,31113F-HRTimelineGroup
Qube Research & Technologies Ltd974,739$7.48M0.01%+582,25013F-HRTimeline
Connor, Clark & Lunn Investment Managem…736,684$5.65M0.01%+154,30713F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC727,315$5.57M0.01%-9,42513F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC571,909$4.39M<0.01%+248,03013F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC543,165$4.17M<0.01%+527,66313F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP472,985$3.63M<0.01%-79,23513F-HRTimelineGroup
Trexquant Investment LP453,529$3.48M0.03%+97,98213F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co426,869$3.27M<0.01%+37,97313F-HRTimelineGroup
SILVERARC CAPITAL MANAGEMENT, LLCin group SILVERARC CAPITAL MANAGEMENT,…419,949$3.22M0.38%+25,29913F-HRTimelineGroup
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…400,000$3.07M<0.01%-1,300,00013F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC369,805$2.84M0.04%+277,60513F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC356,471$2.73M<0.01%+302,04013F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding315,958$2.42M+212,282Timeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC310,417$2.38M<0.01%-183,33313F-HRTimelineGroup
BOOTHBAY FUND MANAGEMENT, LLC303,988$2.33M0.05%-213,53813F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC286,988$2.2M<0.01%013F-HRTimelineGroup
PANAGORA ASSET MANAGEMENT INC243,565$1.87M0.01%new13F-HRTimeline
DAFNA Capital Management LLC205,000$1.57M0.36%new13F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC175,944$1.35M<0.01%+110,09213F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY173,337$1.33M<0.01%+7,71413F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC156,242$1.2M<0.01%-1,43013F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD154,435$1.18M<0.01%+67,93613F-HRTimeline
Y-Intercept (Hong Kong) Ltd153,344$1.18M0.02%+86,62813F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp149,942$1.15M<0.01%+33,03613F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP139,000$1.07M<0.01%new13F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP136,664$1.05M0.07%+36,95513F-HRTimeline
Fiduciary Trust Coin group Fiduciary Trust Co136,555$1.05M0.01%013F-HRTimelineGroup
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC130,560$1M0.06%-1,123,18913F-HRTimelineGroup
Nuveen, LLCin group TIAA129,618$994K<0.01%+17,41513F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/126,559$971K<0.01%-104,61813F-HRTimelineGroup
Engineers Gate Manager LP126,109$967K0.01%new13F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding120,657$925K+32,727Timeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…118,600$910K<0.01%-27,82713F-HRTimelineGroup
Simplify Asset Management Inc.115,994$890K0.01%-43,68013F-HRTimeline
Invesco Ltd.in group Invesco Ltd.111,125$852K<0.01%-306,06413F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC88,458$678K<0.01%-44,08313F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/80,169$615K<0.01%+16,40913F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…79,157$607K<0.01%+75,58313F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd71,603$549K0.01%+19,80113F-HRTimelineGroup
RBF Capital, LLC70,000$537K0.03%-10,50613F-HR/ATimeline
Atom Investors LP69,155$530K0.04%+8,56013F-HRTimeline
RHUMBLINE ADVISERS66,175$508K<0.01%+10,46213F-HRTimeline
Creative Planningin group Creative Planning64,089$492K<0.01%+41,98513F-HRTimelineGroup
FMR LLCin group FMR LLC61,041$468K<0.01%+53,35013F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC58,636$442K<0.01%+15,37413F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources54,666$419K<0.01%+10,41713F-HRTimelineGroup
GROUP ONE TRADING LLC53,756$412K0.01%+19,00613F-HRTimeline
ALLIANCEBERNSTEIN L.P.34,570$391K<0.01%+19,30013F-HRTimeline
Burkehill Global Management, LP50,000$384K0.02%013F-HRTimeline
STRS OHIO49,300$378K<0.01%013F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\48,828$375K<0.01%-238,26813F-HRTimelineGroup
Man Group plcin group Man Group plc46,119$354K<0.01%+30,86613F-HRTimelineGroup
EntryPoint Capital, LLC45,248$347K0.1%+30,17213F-HRTimeline
Graham Capital Management, L.P.42,741$328K0.01%-5,72313F-HRTimeline
Marex Group Ltdin group Marex Group Ltd42,000$322K<0.01%new13F-HRTimelineGroup
SIMPLEX TRADING, LLC41,940$322K0.01%+33,92613F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC40,290$309K<0.01%+29013F-HRTimeline
BIT Capital GmbH40,000$307K0.02%new13F-HRTimeline
Matisse Capital39,649$304K0.13%+26,18913F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…39,444$303K<0.01%-9,45613F-HRTimelineGroup
Seven Fleet Capital Management LP38,100$292K0.09%new13F-HR/ATimeline
MetLife Investment Management, LLCin group MetLife Investment Management…33,164$254K<0.01%+10,45013F-HRTimelineGroup
ALGERT GLOBAL LLC33,050$253K<0.01%new13F-HR/ATimeline
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding31,554$242K+8,902Timeline
Woodline Partners LP30,793$236K<0.01%013F-HR/ATimeline
COUNTRY TRUST BANK30,041$230K<0.01%013F-HRTimeline
LMR Partners LLPin group LMR Partners LLP30,000$230K<0.01%013F-HRTimelineGroup
Pale Fire Capital SEin group Pale Fire Capital26,100$200K0.02%new13F-HRTimelineGroup
Quantinno Capital Management LP25,669$197K<0.01%-3,59513F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO29,792$196K<0.01%+9,00313F-HR/ATimelineGroup
CITIGROUP INCin group CITIGROUP INC23,435$180K<0.01%-43,66713F-HRTimelineGroup
Mariner, LLCin group Mariner, LLC23,260$178K<0.01%new13F-HRTimelineGroup
ExodusPoint Capital Management, LP23,172$178K<0.01%new13F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN22,551$173K<0.01%-143,84413F-HR/ATimelineGroup
AXQ CAPITAL, LP22,043$169K0.02%-9,50213F-HRTimeline
Virtus Investment Advisers, LLCin group Virtus Investment Advisers, L…20,974$161K0.04%+51113F-HRTimelineGroup
Police & Firemen's Retirement System of…18,562$142K<0.01%+5,71913F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD18,400$141K<0.01%new13F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc17,704$136K<0.01%+1,33113F-HRTimelineGroup
Westshore Wealth, LLC17,000$130K0.05%new13F-HRTimeline
DRW Securities, LLC16,414$126K0.01%new13F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …16,102$124K<0.01%+3,21913F-HRTimelineGroup
PROFUND ADVISORS LLC15,501$119K<0.01%new13F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS14,147$109K<0.01%+3,62513F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC13,600$104K<0.01%-3,80013F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC13,242$102K<0.01%-6,50513F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND13,100$100K<0.01%-44,62513F-HRTimeline
SG Americas Securities, LLC12,139$93K<0.01%+37313F-HRTimeline
CWM, LLCin group CWM, LLC12,094$92.8K<0.01%+11,72213F-HRTimelineGroup
China Universal Asset Management Co., L…11,819$90.7K0.01%+3,00013F-HRTimeline
BAILARD, INC.11,781$90.4K<0.01%013F-HRTimeline
ProShare Advisors LLC11,656$89.4K<0.01%+1,39713F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV10,866$83.3K<0.01%new13F-HRTimeline
Entropy Technologies, LP10,819$83K<0.01%-1,17713F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC10,024$76.9K<0.01%new13F-HRTimelineGroup
ASSETMARK, INCin group ASSETMARK, INC7,525$57.7K<0.01%-65913F-HRTimelineGroup
SUMMIT SECURITIES GROUP LLC6,975$53.5K0.03%new13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…6,567$50.4K<0.01%+4,94313F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…4,898$37.6K<0.01%+1,30013F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…3,263$25K<0.01%+61213F-HRTimeline
NISA INVESTMENT ADVISORS, LLC3,161$24.2K<0.01%-44113F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA2,851$21K<0.01%-1,25613F-HRTimelineGroup
Farther Finance Advisors, LLC2,390$17.9K<0.01%+20013F-HRTimeline
MAI Capital Management1,866$14.3K<0.01%+1,85613F-HRTimeline
Sterling Capital Management LLC1,849$14.2K<0.01%-48313F-HRTimeline
State of Wyoming1,815$13.9K<0.01%new13F-HRTimeline
GF FUND MANAGEMENT CO. LTD.1,204$9.23K<0.01%+14213F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…1,182$9.07K<0.01%new13F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…1,119$8.58K<0.01%+89513F-HRTimelineGroup
IFP Advisors, Inc988$7.58K<0.01%013F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…885$6.79K<0.01%-55713F-HRTimelineGroup
Allworth Financial LP863$6.62K<0.01%new13F-HRTimeline
Versant Capital Management, Inc858$6.58K<0.01%-94213F-HRTimeline
MassMutual Private Wealth & Trust, FSB581$4.46K<0.01%new13F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.530$4.07K<0.01%+20813F-HR/ATimelineGroup
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…472$3.62K<0.01%013F-HRTimelineGroup
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/422$3.23K<0.01%-2113F-HRTimelineGroup
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…409$3.14K<0.01%+20213F-HR/ATimelineGroup
Larson Financial Group LLC407$3.12K<0.01%new13F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.328$2.52K<0.01%013F-HRTimelineGroup
ROTHSCHILD INVESTMENT LLC295$2.26K<0.01%+28713F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC295$2.26K<0.01%-62013F-HRTimeline
Physician Wealth Advisors, Inc.283$2.17K<0.01%013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.271$2.08K<0.01%+18113F-HRTimelineGroup
Caitong International Asset Management …262$2.01K<0.01%+22113F-HRTimeline
Basecamp Wealth Advisors LLC225$1.73K<0.01%new13F-HRTimeline
Rialto Wealth Management, LLC159$1.22K<0.01%013F-HRTimeline
Arax Advisory Partners111$852<0.01%-7013F-HRTimeline
Altshuler Shaham Ltd100$767<0.01%013F-HRTimeline
SJS Investment Consulting Inc.76$583<0.01%+7313F-HRTimeline
True Wealth Design, LLC49$376<0.01%+3313F-HRTimeline
TWIN PEAKS WEALTH ADVISORS, LLC38$291<0.01%new13F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\26$199<0.01%new13F-HRTimelineGroup
JPL Wealth Management, LLC17$131<0.01%new13F-HR/ATimeline
Root Financial Partners, LLC14$107<0.01%new13F-HRTimeline
SBI Securities Co., Ltd.4$31<0.01%013F-HRTimeline
Keating Financial Advisory Services, In…3$23<0.01%-2113F-HRTimeline
Hughes Financial Services, LLC1$8<0.01%new13F-HRTimeline
Essential Partners LLC1$8<0.01%013F-HRTimeline