Penbrook Management’s BioLife Solutions BLFS Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$1.12M Buy
39,705
+16,550
+71% +$387K 0.72% 40
2026
Q1
$442K Buy
23,155
+200
+0.9% +$4.42K 0.33% 62
2025
Q4
$555K Sell
22,955
-200
-0.9% -$5.23K 0.38% 55
2025
Q3
$591K Sell
23,155
-30,425
-57% -$722K 0.41% 52
2025
Q2
$1.19M Buy
53,580
+23,155
+76% +$522K 0.45% 52
2025
Q1
$695K Sell
30,425
-225
-0.7% -$5.92K 0.53% 45
2024
Q4
$796K Hold
30,650
0.54% 45
2024
Q3
$767K Sell
30,650
-8,365
-21% -$198K 0.5% 47
2024
Q2
$836K Sell
39,015
-1,235
-3% -$24K 0.51% 45
2024
Q1
$747K Sell
40,250
-700
-2% -$12.2K 0.46% 47
2023
Q4
$665K Sell
40,950
-550
-1% -$7.02K 0.45% 48
2023
Q3
$573K Hold
41,500
0.42% 51
2023
Q2
$917K Hold
41,500
0.66% 37
2023
Q1
$903K Buy
41,500
+920
+2% +$20.7K 0.69% 40
2022
Q4
$739K Sell
40,580
-50
-0.1% -$1.03K 0.63% 46
2022
Q3
$924K Sell
40,630
-7,685
-16% -$164K 0.8% 34
2022
Q2
$667K Sell
48,315
-300
-0.6% -$4.4K 0.53% 53
2022
Q1
$1.1M Hold
48,615
0.72% 43
2021
Q4
$1.81M Sell
48,615
-80
-0.2% -$3.43K 1.09% 24
2021
Q3
$2.06M Buy
48,695
+100
+0.2% +$4.82K 1.28% 19
2021
Q2
$2.16M Sell
48,595
-230
-0.5% -$8.1K 1.3% 20
2021
Q1
$1.76M Hold
48,825
1.27% 25
2020
Q4
$1.95M Hold
48,825
1.5% 17
2020
Q3
$1.41M Buy
48,825
+2,830
+6% +$61.1K 1.22% 26
2020
Q2
$752K Hold
45,995
0.74% 41
2020
Q1
$437K Buy
45,995
+18,850
+69% +$259K 0.56% 54
2019
Q4
$440K Sell
27,145
-1,550
-5% -$25.2K 0.43% 71
2019
Q3
$477K Sell
28,695
-350
-1% -$6.57K 0.52% 66
2019
Q2
$493K Buy
+29,045
New +$506K 0.53% 66

Other funds holding BLFS

Penbrook Management's BLFS Position: Q2 2026 in Review

Penbrook Management increased its BioLife Solutions (BLFS) stake by 71% in Q2 2026, buying an estimated $387K and bringing the position to 39,705 shares worth $1.12M. The position accounts for 0.72% of the portfolio, ranked #40.

Penbrook Management first reported a position in BLFS in Q2 2019 and has held it in 29 quarters since. The position peaked at $2.16M in Q2 2021. 49 funds tracked by Wall St. Rank hold BLFS as of Q2 2026.

  • Penbrook Management held 39,705 shares of BioLife Solutions worth $1.12M as of Q2 2026.
  • Penbrook Management bought 16,550 BioLife Solutions shares in Q2 2026, an estimated $387K.
  • BioLife Solutions made up 0.72% of Penbrook Management's portfolio in Q2 2026, its #40 holding.
  • Penbrook Management first reported a position in BioLife Solutions in Q2 2019 and has held it in 29 quarters since.
  • Penbrook Management's BioLife Solutions position peaked at $2.16M in Q2 2021.
  • 49 funds tracked by Wall St. Rank held BioLife Solutions as of Q2 2026.

Based on Penbrook Management's 13F filing for Q2 2026, filed 23 Jul 2026.