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BIOLIFE SOLUTIONS INC

BLFS Net selling
CIK 0000834365 #2114 in the set updated 17 Sep 2026
Bought (12 mo)
$0.00
out of their own pocket, the only kind of buying there is
Sold (12 mo)
$56.61M
$1.45M on a plan · $0.00 straight out of an exercise
Sold at will
$55.16M
16 of 49 sales
Net
−$56.61M
−$55.16M against sales at will

By person

14 insiders · 49 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Casdin Partners Master Fund, L.P. entity
10% owner
—
$49.54M (4)
−$49.54M
4,757,165
9.73%
$112.74M
−45.2%
DE GREEF RODERICK
President and CEO
—
$3.61M (4)
−$3.61M
730,971
1.49%
$17.32M
+58.3%
Foster Karen A.
Chief Quality and Operations
—
$2.07M (8)
−$2.07M
108,758
0.2224%
$2.58M
−31.0%
Wichterman Troy
Chief Financial Officer
—
$873.50K (6)
−$873.50K
212,223
0.4339%
$5.03M
+70.6%
DuRoss Amy
Director
—
$305.75K (6)
−$305.75K
26,857
0.0549%
$636.51K
−8.8%
Mathew Aby J.
EVP & Chief Scientific Officer
—
$65.18K (5) scheduled
−$65.18K
387,833
0.7930%
$9.19M
+22.1%
GOSWAMI JOYDEEP
Director
—
$48.30K (2) scheduled
−$48.30K
53,156
0.1087%
$1.26M
+29.3%
Aebersold Sarah
Chief Human Resources Officer
—
$44.95K (6) scheduled
−$44.95K
92,429
0.1890%
$2.19M
+38.9%
Berard Todd
Chief Marketing Officer
—
$42.41K (5) scheduled
−$42.41K
162,293
0.3318%
$3.85M
+37.4%
Werner Sean
Chief Technology Officer
—
$12.89K (3) scheduled
−$12.89K
47,556
0.0972%
$1.13M
+834.5%
Ellingson Rachel
Director
—
—
—
57,995
0.1186%
$1.37M
+35.0%
MOORE TIMOTHY L.
Director
—
—
—
44,943
0.0919%
$1.07M
+50.3%
Hunt Anthony
Director
—
—
—
15,046
0.0308%
$356.59K
—
Coste Catherine
Director
—
—
—
13,871
0.0284%
$328.74K
—

Individual transactions

16
Insider
Date
Role
Action
Shares
Price
Amount
Casdin Partners Master Fund, L.P.
21 May 2026
10% owner
Sell indirect
650,000
$23.70
$15.41M
Casdin Partners Master Fund, L.P.
20 May 2026
10% owner
Sell indirect
250,000
$23.70
$5.93M
Casdin Partners Master Fund, L.P.
19 May 2026
10% owner
Sell indirect
300,000
$22.65
$6.80M
Foster Karen A.
9 Mar 2026
Chief Quality and Operations
Sell
500
$20.00
$10.00K
Foster Karen A.
5 Mar 2026
Chief Quality and Operations
Sell
96,923
$20.15
$1.95M
DuRoss Amy
15 Dec 2025
Director
Sell
2,000
$24.60
$49.20K
Wichterman Troy
4 Dec 2025
Chief Financial Officer
Sell
30,000
$25.72
$771.60K
DuRoss Amy
26 Nov 2025
Director
Sell
2,000
$27.00
$54.00K
DuRoss Amy
25 Nov 2025
Director
Sell
2,000
$27.00
$54.00K
DuRoss Amy
21 Nov 2025
Director
Sell
1,000
$26.00
$26.00K
DuRoss Amy
20 Nov 2025
Director
Sell
4,523
$24.51
$110.86K
DuRoss Amy
19 Nov 2025
Director
Sell
477
$24.50
$11.69K
DE GREEF RODERICK
13 Nov 2025
President and CEO
Sell
31,165
$25.33
$789.41K
DE GREEF RODERICK
12 Nov 2025
President and CEO
Sell
33,418
$25.88
$864.86K
DE GREEF RODERICK
11 Nov 2025
President and CEO
Sell
35,417
$26.15
$926.15K
Casdin Partners Master Fund, L.P.
15 Oct 2025
10% owner
Sell indirect
750,000
$28.55
$21.41M
Show all 49 transactions →

What was left out

Form 4 filings counted 79
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 2
Sales on a Rule 10b5-1 plan 33
Sales straight out of an exercise 0
Sales at will 16
Transactions with no price 1
Shares from compensation/vesting 1,093,299
History held since 1 Sep 2016