ATMP — BARCLAYS BANK PLC
Public company
InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.
Sourced from SEC EDGAR public filings
Why are billionaires buying ATMP?
Built from public SEC filings and public economic data. Not a recommendation.
Why? — Evidence & Confidence ▾
Of 2 tracked investors who changed their ATMP position last quarter, 1 bought and 1 sold (50% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 56/100 in a Overheat regime).
- +1 tracked investor added or increased positions last quarter (Izzy Englander)
- +2 tracked investors reported holding ATMP at their latest filing
- +Macro Health is 56/100 in a Overheat regime — historically acceptable for this sectorsource
- −1 tracked investor reduced or exited last quarter (1 reduced, 0 sold out)
- −13F data is disclosed up to 45 days after quarter end — positions may have changed since
- · 13F disclosure lag (up to 45 days)
- · Tracked investors are a sample, not the whole market
- · Sector regime fit is a historical average, not a guarantee
Every InvestorLens score shows its evidence — including what argues against it. Model conviction-v1 · generated 9/18/2026.
About BARCLAYS BANK PLC (ATMP)
BARCLAYS BANK PLC (ATMP) appears in the most recent 13F filings of 2 tracked institutional investors. The largest disclosed position is held by Ken Griffin (Citadel Advisors), valued at $104M. Across recent filings, tracked investors recorded 5 new positions, 3 increased, 6 reduced, and 4 exited. All data sourced from SEC 13F filings.
Based on recent institutional activity in ATMP
How many top investors track ATMP
Only 2 tracked investors report this position.
ATMP Ownership Composition
How BARCLAYS BANK PLC is held across tracked investor types, based on reported 13F positions.
- Multi-Strategy / Quant100.0%
Tracked investors currently reporting ATMP
1 tracked investor has since exited this position — listed separately below.
- Ken GriffinJun 30, 2026Citadel AdvisorsShares2.6MValue$57.3M% Portfolio0.01%
- Izzy EnglanderJun 30, 2026Millennium ManagementShares1MValue$22.9M% Portfolio0.01%
Previously held ATMP
These investors reported ATMP in an earlier quarter but not in their most recent 13F. Figures below are their last reported position, not a current holding.
| Investor | Firm | Last reported shares | Value then | Last held |
|---|---|---|---|---|
| Steve Cohen | Point72 Asset Management | 200K | $6.6M | Sep 30, 2025 |
Recent activity
- Reduced$8.3M(-92.82%)Nov 14, 2024
- Reduced$1.3M(-83.45%)Feb 14, 2025
- Increased$27.7M(1831.97%)May 15, 2025
- Reduced$19.7M(-23.97%)Aug 14, 2025
- Sold$0(-100.00%)Feb 17, 2026
- $7.5MMay 15, 2026
- Increased$22.9M(392.35%)Aug 14, 2026
- Reduced$43.4M(-38.40%)Nov 14, 2024
- Increased$104.1M(160.87%)May 15, 2025
- Reduced$50.2M(-48.36%)Aug 14, 2025
- Sold$0(-100.00%)Nov 14, 2025
- Reduced$57.3M(-1.16%)Aug 14, 2026
- New$1.6MFeb 14, 2025
- Sold$0(-100.00%)Jul 21, 2025
- New$6.6MNov 14, 2025
- Sold$0(-100.00%)Feb 17, 2026
- New$15.5MAug 14, 2024
- $30MMay 15, 2024
Frequently asked questions
- How many institutional investors hold ATMP?
- 2 tracked institutional investors disclosed a position in ATMP (BARCLAYS BANK PLC) in their most recent 13F filing.
- Who is the largest institutional holder of ATMP?
- Ken Griffin, Citadel Advisors, holds the largest disclosed position in ATMP, valued at $104M.
- Did institutional ownership of ATMP increase or decrease?
- Across recent 13F filings, tracked investors recorded 5 new positions, 3 increased, 6 reduced, and 4 fully exited ATMP.
- Where does this ATMP ownership data come from?
- SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.