PureTech Health plc
PureTech Health plc (PRTC) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · PRTC · as of Sep 30, 2025
Ownership Breakdown
7
Institutional Holders
▼ 1 vs Q2
$20.64M
Total Inst. Value
▲ $18.31M vs Q2
24.34M
Shares Outstanding
freeFloat 64.57%
14.21M
13F Shares Held
▲ 13.86M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
PRTC largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
LANSDOWNE PARTNERS (UK) LLP pharmaceutical preparations | 14.11M | 60.09% | 60.09% | $18.76B | Nov 14, 2025 | NEW |
PENTWATER CAPITAL MANAGEMENT LP pharmaceutical preparations | 75.0K | 31.95% | 31.95% | $1.39B | Nov 14, 2025 | ▲ 25.0K |
MILLENNIUM MANAGEMENT LLC pharmaceutical preparations | 17.8K | 7.60% | 7.60% | $328.45M | Nov 14, 2025 | ▼ 6.0K |
DIADEMA PARTNERS LP pharmaceutical preparations | 7.3K | 3.12% | 3.12% | $135.49M | Nov 14, 2025 | — held |
PERSISTENT ASSET PARTNERS LTD pharmaceutical preparations | 1.7K | 0.72% | 0.72% | $31.17M | Jan 15, 2026 | — held |
UBS GROUP AG pharmaceutical preparations | 20 | 0.01% | 0.01% | $370,000 | Nov 13, 2025 | — held |
SBI SECURITIES CO., LTD. pharmaceutical preparations | 2 | 0.00% | 0.00% | $37,000 | Nov 5, 2025 | NEW |
BIRCH HILL INVESTMENT ADVISORS LLC pharmaceutical preparations | 0 | 0.00% | 0.00% | $0 | Oct 23, 2025 | EXIT |
PORTOLAN CAPITAL MANAGEMENT, LLC pharmaceutical preparations | 0 | 0.00% | 0.00% | $0 | Nov 13, 2025 | EXIT |
ATLANTIC UNION BANKSHARES CORP pharmaceutical preparations | 0 | 0.00% | 0.00% | $0 | Nov 4, 2025 | EXIT |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
1
Increased
+25.0K shares2
New Positions
first time holders1
Decreased
−6.0K shares3
Sold Out
fully exitedNet shares change (top 50)
+19.0K
+25.0K / −6.0K
Net new holders
-1
2 new / 3 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
PRTC insider trading · insider activity
Source: SEC Form 4
1
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
No recent insider transactions reported.
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
PureTech Health plc (PRTC) is primarily owned by institutional investors, who hold approximately 58.4% of total shares outstanding. Company insiders own approximately 35.43%, while retail and public investors account for the remaining 6.20%.
The largest institutional shareholder of PureTech Health plc is LANSDOWNE PARTNERS (UK) LLP, holding approximately 14.11 million shares — equal to 60.09% of outstanding shares — as of September 30, 2025.
A total of 7 institutional investors currently hold PRTC stock, with a combined institutional value of approximately $20,644,886 as of the most recent 13F filing period.
Frequently asked questions
PRTC ownershipPureTech Health plc (PRTC) is primarily owned by institutional investors, who hold approximately 58.4% of shares. The largest shareholder is LANSDOWNE PARTNERS (UK) LLP with a 60.09% stake. Company insiders hold 35.43%. Data sourced from SEC Form 13F as of September 30, 2025.