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Senseonics Holdings, Inc. (SENS) institutional ownership

Market cap$345M SectorHealthcare
Funds holding · Q1 2026
80
reported SENS position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Activity unavailable N/A
40 buyers · 40 sellers

Senseonics Holdings, Inc. (SENS) price and institutional activity

Dates

Q1 2026

$0 bought by 40 investors
Sessa Capital Im, L.P.Millennium Management LLC +38 more
$0 sold by 40 investors
Hood River Capital Management LLCParkman Healthcare Partners LLC +38 more
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Bought Sold Totals per quarter; hover a bar for the names.

Senseonics Holdings, Inc. (SENS) institutional activity · 80

Investor Type Est. change Change Δ Own Date
Sessa Capital Im, L.P. · New
Change +1.8M Date Q1 2026
Sessa Capital Im, L.P. New· Q1 2026 +1.8M Q1 2026
Millennium Management LLC · Added
Change +459K Date Q1 2026
Millennium Management LLC Added· Q1 2026 +459K Q1 2026
Marshall Wace, LLP · Added
Change +308K Date Q1 2026
Marshall Wace, LLP Added· Q1 2026 +308K Q1 2026
Masters Capital Management LLC · Added
Change +250K Date Q1 2026
Masters Capital Management LLC Added· Q1 2026 +250K Q1 2026
UBS Group AG · Added
Change +235K Date Q1 2026
UBS Group AG Added· Q1 2026 +235K Q1 2026
Hood River Capital Management LLC · Reduced
Change −235K Date Q1 2026
Hood River Capital Management LLC Reduced· Q1 2026 −235K Q1 2026
Parkman Healthcare Partners LLC · Exited
Change −207K Δ Own −100.0% Date Q1 2026
Parkman Healthcare Partners LLC Exited· Q1 2026 −207K −100.0% Q1 2026
Goldman Sachs Group Inc · Reduced
Change −181K Date Q1 2026
Goldman Sachs Group Inc Reduced· Q1 2026 −181K Q1 2026
Schonfeld Strategic Advisors LLC · Reduced
Change −156K Date Q1 2026
Schonfeld Strategic Advisors LLC Reduced· Q1 2026 −156K Q1 2026
Jane Street Group, LLC · Exited
Change −123K Δ Own −100.0% Date Q1 2026
Jane Street Group, LLC Exited· Q1 2026 −123K −100.0% Q1 2026
Susquehanna International Group, LLP · Added
Change +90K Date Q1 2026
Susquehanna International Group, LLP Added· Q1 2026 +90K Q1 2026
Citadel Advisors LLC New· Q1 2026 +77K Q1 2026
Exoduspoint Capital Management, LP · Exited
Change −63K Δ Own −100.0% Date Q1 2026
Exoduspoint Capital Management, LP Exited· Q1 2026 −63K −100.0% Q1 2026
Morgan Stanley · Added
Change +60K Date Q1 2026
Morgan Stanley Added· Q1 2026 +60K Q1 2026
Quadrature Capital Ltd · Exited
Change −58K Δ Own −100.0% Date Q1 2026
Quadrature Capital Ltd Exited· Q1 2026 −58K −100.0% Q1 2026
Data through Q1 2026 · filed Jun 3, 2026
15 of 80

Famous investor activity in Senseonics Holdings, Inc. (SENS)

Senseonics Holdings, Inc. (SENS) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Prince Douglas S. · Director Grant (A) $8K
Price $5.36 Qty 2K Owned 69K ΔOwn +2.2% Trade date Jul 1, 2026 Filed date Jul 2, 2026
Prince Douglas S. Director Grant (A) $5.36 2K $8K 69K +2.2% Jul 1, 2026 Jul 2, 2026
Roeder Douglas A. · Director Grant (A) $15K
Price $5.36 Qty 3K Owned 157K ΔOwn +1.8% Trade date Jul 1, 2026 Filed date Jul 2, 2026
Roeder Douglas A. Director Grant (A) $5.36 3K $15K 157K +1.8% Jul 1, 2026 Jul 2, 2026
Fiorentino Edward · Director Grant (A) $14K
Price $5.36 Qty 3K Owned 86K ΔOwn +3.2% Trade date Jul 1, 2026 Filed date Jul 2, 2026
Fiorentino Edward Director Grant (A) $5.36 3K $14K 86K +3.2% Jul 1, 2026 Jul 2, 2026
Steven Edelman · Director Grant (A) $13K
Price $5.36 Qty 2K Owned 91K ΔOwn +2.7% Trade date Jul 1, 2026 Filed date Jul 2, 2026
Steven Edelman Director Grant (A) $5.36 2K $13K 91K +2.7% Jul 1, 2026 Jul 2, 2026
Kaufman Francine · Director Tax withholding or exercise payment (F) -$29K
Price $7.18 Qty -4K Owned 177K Trade date Jun 15, 2026 Filed date Jun 17, 2026
Kaufman Francine Director Tax withholding or exercise payment (F) $7.18 -4K -$29K 177K Jun 15, 2026 Jun 17, 2026
Jain Mukul · Officer Tax withholding or exercise payment (F) -$116K
Price $7.18 Qty -16K Owned 501K Trade date Jun 15, 2026 Filed date Jun 17, 2026
Jain Mukul Officer Tax withholding or exercise payment (F) $7.18 -16K -$116K 501K Jun 15, 2026 Jun 17, 2026
Sullivan Frederick T. · CFO Tax withholding or exercise payment (F) -$39K
Price $7.18 Qty -5K Owned 226K Trade date Jun 15, 2026 Filed date Jun 17, 2026
Sullivan Frederick T. CFO Tax withholding or exercise payment (F) $7.18 -5K -$39K 226K Jun 15, 2026 Jun 17, 2026
Horton Kenneth L. · Officer Tax withholding or exercise payment (F) -$69K
Price $7.18 Qty -10K Owned 286K Trade date Jun 15, 2026 Filed date Jun 17, 2026
Horton Kenneth L. Officer Tax withholding or exercise payment (F) $7.18 -10K -$69K 286K Jun 15, 2026 Jun 17, 2026
Hansen Brian B. · Director Tax withholding or exercise payment (F) -$39K
Price $7.18 Qty -5K Owned 127K Trade date Jun 15, 2026 Filed date Jun 17, 2026
Hansen Brian B. Director Tax withholding or exercise payment (F) $7.18 -5K -$39K 127K Jun 15, 2026 Jun 17, 2026
Goodnow Timothy T. · Director Tax withholding or exercise payment (F) -$234K
Price $7.18 Qty -33K Owned 1.1M Trade date Jun 15, 2026 Filed date Jun 17, 2026
Goodnow Timothy T. Director Tax withholding or exercise payment (F) $7.18 -33K -$234K 1.1M Jun 15, 2026 Jun 17, 2026
Defalco Stephen P. · Director 2 operations 23K
Owned 14K Trade date May 20, 2026 Filed date May 21, 2026
Defalco Stephen P. Director 2 operations 23K 14K May 20, 2026 May 21, 2026
Steven Edelman · Director 2 operations 23K
Owned 14K Trade date May 20, 2026 Filed date May 21, 2026
Steven Edelman Director 2 operations 23K 14K May 20, 2026 May 21, 2026
Fiorentino Edward · Director 2 operations 23K
Owned 14K Trade date May 20, 2026 Filed date May 21, 2026
Fiorentino Edward Director 2 operations 23K 14K May 20, 2026 May 21, 2026
Larkin Sharon · Director 2 operations 23K
Owned 14K Trade date May 20, 2026 Filed date May 21, 2026
Larkin Sharon Director 2 operations 23K 14K May 20, 2026 May 21, 2026
Prince Douglas S. · Director 2 operations 23K
Owned 14K Trade date May 20, 2026 Filed date May 21, 2026
Prince Douglas S. Director 2 operations 23K 14K May 20, 2026 May 21, 2026
15 of 51
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Senseonics Holdings, Inc. (SENS) activist and large shareholders

What are Schedules 13D and 13G?

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
Phc Holdings Corp 86.9M
% of shares outstanding 15.4% Filing date Mar 20, 2023
Phc Holdings Corp 86.9M 15.4% Mar 20, 2023
Smith Robert J 39.4M
% of shares outstanding 7.7% Filing date Apr 10, 2023
Smith Robert J 39.4M 7.7% Apr 10, 2023
Steward Capital Holdings, LP 19.0M
% of shares outstanding 4.4% Filing date Jun 24, 2021
Steward Capital Holdings, LP 19.0M 4.4% Jun 24, 2021
Vanguard Group Inc 22.4M
% of shares outstanding 4.2% Filing date Feb 13, 2024
Vanguard Group Inc 22.4M 4.2% Feb 13, 2024
Highbridge Capital Management LLC 12.6M
% of shares outstanding 2.8% Filing date Feb 11, 2022
Highbridge Capital Management LLC 12.6M 2.8% Feb 11, 2022
BlackRock Inc. 10.3M
% of shares outstanding 2.1% Filing date Jul 7, 2023
BlackRock Inc. 10.3M 2.1% Jul 7, 2023
Gilder Gagnon Howe & Co LLC
% of shares outstanding 0.0% Filing date Feb 14, 2022
Gilder Gagnon Howe & Co LLC 0.0% Feb 14, 2022
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Senseonics Holdings, Inc. (SENS) ownership FAQ

Who owns SENS?

80 reporting institutions disclosed SENS position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

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.

What are activist and large shareholder filings?

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.

Where does this data come from?

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.

Why are ownership reports delayed?

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.

How are missing table values shown?

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.