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Ownership — BLFS
Institutional Holdings
Insider Transactions
US Institutional Ownership
96.1%
Institution
Shares
Value
Ownership %
Change
Filing Date
T. Rowe Price Investment Management, Inc.
6.75M
$190.0M
13.81%
+244.8K
2026-06-30
BlackRock, Inc.
6.38M
$180.0M
13.04%
+273.8K
2026-06-30
Casdin Capital, LLC
4.66M
$131.0M
9.52%
-1.30M
2026-06-30
Invesco Ltd.
2.24M
$63.0M
4.58%
-108.1K
2026-06-30
Vanguard Capital Management LLC
1.96M
$55.0M
4.02%
+46.4K
2026-06-30
State Street Corp
1.66M
$46.0M
3.39%
+78.9K
2026-06-30
Geode Capital Management, LLC
1.09M
$30.0M
2.22%
+114.9K
2026-06-30
Massachusetts Financial Services Co
1.08M
$30.0M
2.21%
-118.0K
2026-06-30
Fred Alger Management, LLC
1.08M
$30.0M
2.20%
-2.4K
2026-06-30
Dimensional Fund Advisors LP
1.05M
$29.0M
2.14%
+10.5K
2026-06-30
FMR LLC
993.1K
$28.0M
2.03%
-477.1K
2026-06-30
Bank of America Corp
950.2K
$26.0M
1.94%
+46.1K
2026-06-30
Vanguard Portfolio Management LLC
913.2K
$25.0M
1.87%
+48.2K
2026-06-30
UBS Group AG
832.1K
$23.0M
1.70%
+566.2K
2026-06-30
Stephens Investment Management Group LLC
708.7K
$20.0M
1.45%
+35.5K
2026-06-30
Millennium Management LLC
675.7K
$19.0M
1.38%
+648.0K
2026-06-30
Royce & Associates LP
623.9K
$17.0M
1.28%
+39.9K
2026-06-30
Goldman Sachs Group Inc
569.1K
$16.0M
1.16%
+303.6K
2026-06-30
Next Century Growth Investors LLC
558.8K
$15.0M
1.14%
+196.9K
2026-06-30
Gagnon Securities LLC
535.9K
$15.0M
1.10%
-606
2026-06-30
Granahan Investment Management, LLC
521.4K
$14.0M
1.07%
-200.6K
2026-06-30
Mutual of America Capital Management LLC
496.5K
$14.0M
1.02%
-76.2K
2026-06-30
Northern Trust Corp
479.8K
$13.0M
0.98%
+37.3K
2026-06-30
Morgan Stanley
477.5K
$13.0M
0.98%
+33.3K
2026-06-30
Rockefeller Capital Management L.P.
445.0K
$12.0M
0.91%
-296.3K
2026-06-30
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