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ATMP · Barclays Bank PLC

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$36.62 -0.48 (-1.29%) At close · Aug 28
Shares
2.34B

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 37
Total Value: $600,669,383
Total Shares: 17,400,620

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 37 13F filers · Δ vs Mar 31, 2026
Top Holder
95.6%
Sep 2023 → Jun 2026 · range 93.1% – 95.7%
+0.2 pts
Top 5
97.4%
Sep 2023 → Jun 2026 · range 97.4% – 98.3%
−0.2 pts
Top 10
98.3%
Sep 2023 → Jun 2026 · range 98.3% – 99.6%
−0.1 pts
HHI
9,146
Sep 2023 → Jun 2026 · range 8,675 – 9,170
Highly concentrated+29

Quarterly Activity

vs Mar 31, 2026
New
4
Increased
9
Decreased
6
Sold Out
5
Unchanged
18
Holder count: -1
Institutional value: +0.9%
Shares held: +0.6%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 37 of 37
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 312070 CUSIP 06742C723 13F (30d) 30 filings 30 filers