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Septerna, Inc.

SEPN
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001984086

In the last 90 days, Septerna, Inc. insiders filed 0 open-market purchases and 6 sales; 153 institutions reported holding it in 13F filings for Q2 2026, worth $1.58B in total; no superinvestor holds it.

13F holders, Q1 2026

Institutional positions in Septerna, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
124
+4 vs. Q4 2025
Shares held
45.7M
+1.64M (+3.7%) vs. Q4 2025
Total value
$1.10B
−$130.2M (−10.6%) vs. Q4 2025
New holders
28
43 more added
Sold out
24
30 more reduced

2 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting SEPN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 124 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 0 institutionsQ4 2022: 0 institutionsQ1 2023: 0 institutionsQ2 2023: 0 institutionsQ3 2023: 0 institutionsQ4 2023: 0 institutionsQ1 2024: 0 institutionsQ2 2024: 0 institutionsQ3 2024: 0 institutionsQ4 2024: 71 institutionsQ1 2025: 71 institutionsQ2 2025: 89 institutionsQ3 2025: 82 institutionsQ4 2025: 122 institutionsQ1 2026: 124 institutionsQ2 2026: 153 institutions
Value heldQ1 2026: $1.10B
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $0Q4 2022: $0Q1 2023: $0Q2 2023: $0Q3 2023: $0Q4 2023: $0Q1 2024: $0Q2 2024: $0Q3 2024: $0Q4 2024: $1.01BQ1 2025: $262.2MQ2 2025: $469.6MQ3 2025: $838.0MQ4 2025: $1.27BQ1 2026: $1.10BQ2 2026: $1.58B
Institutions holding SEPN and their total value by quarter
QuarterHoldersValue
Q2 2026153$1.58B
Q1 2026124$1.10B
Q4 2025122$1.27B
Q3 202582$838.0M
Q2 202589$469.6M
Q1 202571$262.2M
Q4 202471$1.01B
Q3 20240$0
Q2 20240$0
Q1 20240$0
Q4 20230$0
Q3 20230$0
Q2 20230$0
Q1 20230$0
Q4 20220$0
Q3 20220$0
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Septerna, Inc.; share changes are against Q4 2025.

Institutions holding SEPN in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
MAI Capital Management6$1450.00%+6New
Quadrant Capital Group LLC7$1690.00%+7New
Farther Finance Advisors, LLC7$1710.00%+6+600.0%Added
Allworth Financial LP17$4090.00%+17New
Fortitude Family Office, LLC20$4810.00%−51−71.8%Reduced
Rothschild Investment LLC30$7210.00%00.0%Unchanged
Caitong International Asset Management Co., Ltd38$9130.00%−3,132−98.8%Reduced
The PNC Financial Services Group, Inc.43$1.03K0.00%−155−78.3%Reduced
Cornerstone Financial Management LLC52$1.25K0.00%00.0%Unchanged
SBI Securities Co., Ltd.55$1.32K0.00%00.0%Unchanged
EverSource Wealth Advisors, LLC68$1.63K0.00%+5+7.9%Added
Massmutual Trust Co FSB135$3.24K0.00%+72+114.3%Added
UBS Asset Management Americas Inc155$3.73K0.00%+155New
N.E.W. Advisory Services LLC180$4.33K0.00%00.0%Unchanged
US Bancorp197$4.73K0.00%+7+3.7%Added
Diadema Partners LP202$4.85K0.00%+202New
Larson Financial Group LLC204$4.90K0.00%+204New
Versant Capital Management, Inc261$6.27K0.00%00.0%Unchanged
Pinnacle Wealth Planning Services, Inc.322$7.74K0.00%00.0%Unchanged
Zurcher Kantonalbank (Zurich Cantonalbank)508$12.2K0.00%+508New
Sterling Capital Management LLC712$17.1K0.00%−520−42.2%Reduced
Tower Research Capital LLC (TRC)717$17.2K0.00%−1,439−66.7%Reduced
Nisa Investment Advisors, LLC841$20.2K0.00%+500+146.6%Added
CWM, LLC894$21.5K0.00%+6+0.7%Added
Signaturefd, LLC966$23.2K0.00%−23−2.3%Reduced
GF Fund Management Co. Ltd.1,006$24.2K0.00%+128+14.6%Added
GAMMA Investing LLC1,110$26.7K0.00%+194+21.2%Added
California State Teachers Retirement System1,157$27.8K0.00%−159−12.1%Reduced
Ameritas Investment Partners, Inc.1,944$46.7K0.00%00.0%Unchanged
Covestor Ltd2,260$54.0K0.04%+319+16.4%Added
Mirae Asset Global Investments Co., Ltd.2,335$56.1K0.00%+159+7.3%Added
KLP Kapitalforvaltning AS2,500$60.1K0.00%+2,500New
Public Employees Retirement System of Ohio3,374$81.1K0.00%−7,220−68.2%Reduced
Vanguard Investments Australia, Ltd.3,895$93.6K0.00%+3,895New
Police & Firemen's Retirement System of New Jersey5,175$124.4K0.00%00.0%Unchanged
BNP Paribas Arbitrage, SA5,361$128.8K0.00%−88−1.6%Reduced
New York State Common Retirement Fund5,600$134.6K0.00%00.0%Unchanged
Legal & General Group Plc5,735$137.8K0.00%+3,790+194.9%Added
Vanguard Asset Management, Ltd7,420$178.3K0.00%+7,420New
Winton Group Ltd8,842$212.5K0.01%+8,842New
Citigroup Inc9,195$221.0K0.00%−366−3.8%Reduced
Wells Fargo & Company9,869$237.2K0.00%−16,660−62.8%Reduced
Mirae Asset Global ETFs Holdings Ltd.10,021$240.8K0.00%+87+0.9%Added
Massachusetts Financial Services Co10,382$249.5K0.00%+10,382New
Virtus Investment Advisers, Inc.10,719$257.6K0.07%+262+2.5%Added
Seven Fleet Capital Management LP11,445$275.0K0.09%00.0%Unchanged
Russell Investments Group, Ltd.11,515$276.7K0.00%−3,795−24.8%Reduced
Man Group plc11,858$284.9K0.00%+11,858New
China Universal Asset Management Co., Ltd.11,946$287.1K0.02%+1,650+16.0%Added
Verition Fund Management LLC12,343$296.6K0.00%+12,343New
Advisor Group Holdings, Inc.12,698$305.1K0.00%+50.0%Added
EntryPoint Capital, LLC12,776$307.0K0.09%+12,776New
MetLife Investment Management13,685$328.9K0.00%00.0%Unchanged
Los Angeles Capital Management LLC14,214$341.6K0.00%−4,336−23.4%Reduced
Numerai GP LLC15,082$362.4K0.04%−30,784−67.1%Reduced
AQR Capital Management LLC15,375$369.5K0.00%+7,549+96.5%Added
Vanguard Global Advisers, LLC16,247$390.4K0.00%+16,247New
Engineers Gate Manager LP16,528$397.2K0.00%+16,528New
VARCOV Co.16,752$402.6K0.15%−5,882−26.0%Reduced
Deutsche Bank AG16,843$404.7K0.00%+1,964+13.2%Added
STRS Ohio17,200$413.3K0.00%+2,600+17.8%Added
Squarepoint Ops LLC18,083$434.5K0.00%+3,236+21.8%Added
Algert Global LLC21,035$505.5K0.01%−13,909−39.8%Reduced
Swiss National Bank22,100$531.1K0.00%+22,100New
Barclays PLC22,714$545.8K0.00%−15,433−40.5%Reduced
Alliancebernstein L.P.19,600$546.4K0.00%00.0%Unchanged
FMR LLC23,446$563.4K0.00%+20,139+609.0%Added
Logos Global Management LP23,548$565.9K0.03%00.0%Unchanged
Adage Capital Partners GP, L.L.C.24,000$576.7K0.00%+24,000New
Y-Intercept (Hong Kong) Ltd25,770$619.3K0.01%+25,770New
Bank of America Corp25,973$624.1K0.00%−11,621−30.9%Reduced
Rhumbline Advisers26,604$639.3K0.00%+185+0.7%Added
Price T Rowe Associates Inc28,076$675.0K0.00%+2,633+10.3%Added
Jacobs Levy Equity Management, Inc28,436$683.3K0.00%−32,934−53.7%Reduced
Nuveen, LLC29,176$701.1K0.00%+3,378+13.1%Added
Acadian Asset Management LLC30,978$741.0K0.00%+101+0.3%Added
Alyeska Investment Group, L.P.35,000$841.0K0.00%00.0%Unchanged
Trexquant Investment LP35,301$848.3K0.01%−8,704−19.8%Reduced
XTX Topco Ltd36,723$882.5K0.02%+13,408+57.5%Added
Renaissance Technologies LLC37,700$905.9K0.00%+37,700New
Rangeley Capital, LLC39,800$956.4K1.03%−26,000−39.5%Reduced
Marshall Wace, LLP39,840$957.4K0.00%−187,061−82.4%Reduced
Sofinnova Investments, Inc.47,506$1.14M0.06%+47,506New
Jump Financial, LLC53,011$1.27M0.02%+44,612+531.2%Added
Bank of New York Mellon Corp58,709$1.41M0.00%+3,377+6.1%Added
American Century Companies Inc61,290$1.47M0.00%+10,601+20.9%Added
Longaeva Partners L.P.74,567$1.79M0.09%+24,665+49.4%Added
Two Sigma Investments, LP75,367$1.81M0.00%−17,442−18.8%Reduced
JPMorgan Chase & Co84,674$1.97M0.00%+16,336+23.9%Added
Invesco Ltd.82,868$1.99M0.00%−79,146−48.9%Reduced
Federated Hermes, Inc.89,301$2.15M0.00%+10,396+13.2%Added
Checkpoint Capital L.P.100,300$2.41M0.86%+100,300New
Hussman Strategic Advisors, Inc.105,000$2.52M0.55%+105,000New
Morgan Stanley110,530$2.66M0.00%+6,545+6.3%Added
UBS Group AG116,979$2.81M0.00%+48,162+70.0%Added
Millennium Management LLC124,101$2.98M0.00%+16,638+15.5%Added
Vanguard Fiduciary Trust Co154,484$3.71M0.00%+154,484New
Northern Trust Corp164,530$3.95M0.00%+10,334+6.7%Added
Charles Schwab Investment Management Inc181,580$4.36M0.00%−5,661−3.0%Reduced
Kalehua Capital Management LLC194,544$4.67M3.31%00.0%Unchanged