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Alpha Teknova, Inc.

TKNO Net buying
CIK 0001850902 #3325 in the set updated 20 Sep 2026
Bought (120 mo)
$32.71M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$100.94K
$40.51K on a plan · $0.00 straight out of an exercise
Sold at will
$60.43K
3 of 4 sales
Net
+$32.61M
+$32.65M against sales at will

By person

14 insiders · 41 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Telegraph Hill Partners IV, L.P. entity
10% owner
$30.00M (4)
—
+$30.00M
25,400,366
47.31%
$54.51M
—
MACKOWSKI J MATTHEW
Director
$1.55M (3)
—
+$1.55M
810,810
1.51%
$1.74M
—
Lowell Matthew
Chief Financial Officer
$378.19K (5)
—
+$378.19K
168,376
0.3136%
$361.37K
—
Gunstream Stephen
President and CEO
$377.30K (7)
—
+$377.30K
269,497
0.5020%
$578.39K
—
Davis Ted
Director
$255.87K (5)
—
+$255.87K
3,575,559
6.66%
$7.67M
+0.4%
Terrill Damon
General Counsel and CCO
$50.00K (1)
—
+$50.00K
41,027
0.0764%
$88.05K
—
Grossman Paul David
Director
$49.50K (2)
—
+$49.50K
9,212
0.0172%
$19.77K
—
DEMSKI MARTHA J
Director
—
$40.51K (1) scheduled
−$40.51K
12,000
0.0224%
$25.75K
—
Hood Lisa
Chief People Officer
$22.30K (3)
$60.43K (3)
−$38.13K
18,834
0.0351%
$40.42K
—
Gelhaus Ken
Chief Commercial Officer
$18.76K (3)
—
+$18.76K
22,924
0.0427%
$49.20K
—
Davis Irene
Director
$6.43K (2)
—
+$6.43K
1,888,419
3.52%
$4.05M
+0.1%
ROBERTSON BRETT
Director
—
—
—
107,472
0.2002%
$230.66K
—
Vos Alexander
Director
—
—
—
102,472
0.1909%
$219.93K
—
McNamara Robert
Director
—
—
—
9,357
0.0174%
$20.08K
—

Individual transactions

41
Insider
Date
Role
Action
Shares
Price
Amount
Gunstream Stephen
6 Mar 2026
President and CEO
Buy
26,000
$2.15
$55.80K
Lowell Matthew
6 Mar 2026
Chief Financial Officer
Buy
40,000
$2.19
$87.62K
DEMSKI MARTHA J
27 Jun 2025
Director
Sold on a plan
8,000
$5.06
$40.51K
Gunstream Stephen
12 Jul 2024
President and CEO
Buy
80,645
$1.24
$100.00K
Lowell Matthew
12 Jul 2024
Chief Financial Officer
Buy
40,322
$1.24
$50.00K
Telegraph Hill Partners IV, L.P.
12 Jul 2024
10% owner
Buy indirect
969,844
$1.24
$1.20M
Telegraph Hill Partners IV, L.P.
12 Jul 2024
10% owner
Buy indirect
11,126,929
$1.24
$13.80M
Gelhaus Ken
30 Nov 2023
Chief Commercial Officer
Buy
3,587
$1.73
$6.22K
Gunstream Stephen
19 Sep 2023
President and CEO
Buy
54,054
$1.85
$100.00K
Lowell Matthew
19 Sep 2023
Chief Financial Officer
Buy
54,054
$1.85
$100.00K
MACKOWSKI J MATTHEW
19 Sep 2023
Director
Buy indirect
810,810
$1.85
$1.50M
Terrill Damon
19 Sep 2023
General Counsel and CCO
Buy
27,027
$1.85
$50.00K
Telegraph Hill Partners IV, L.P.
19 Sep 2023
10% owner
Buy indirect
1,190,270
$1.85
$2.20M
Telegraph Hill Partners IV, L.P.
19 Sep 2023
10% owner
Buy
6,917,837
$1.85
$12.80M
Hood Lisa
13 Jun 2023
Chief People Officer
Sell
11,400
$3.80
$43.27K
Davis Irene
26 May 2023
Director
Buy indirect
1,000
$3.17
$3.17K
Davis Irene
26 May 2023
Director
Buy indirect
1,000
$3.26
$3.26K
Davis Ted
26 May 2023
Director
Buy
1,000
$3.17
$3.17K
Davis Ted
26 May 2023
Director
Buy
1,000
$3.26
$3.26K
Hood Lisa
17 May 2023
Chief People Officer
Sell
3,119
$2.04
$6.35K
Hood Lisa
12 May 2023
Chief People Officer
Buy
3,119
$1.67
$5.20K
Gelhaus Ken
12 May 2023
Chief Commercial Officer
Buy
3,915
$1.67
$6.52K
Gunstream Stephen
12 May 2023
President and CEO
Buy
4,665
$1.67
$7.77K
Hood Lisa
15 Nov 2022
Chief People Officer
Sell
2,046
$5.28
$10.81K
Gelhaus Ken
14 Nov 2022
Chief Commercial Officer
Buy
1,422
$4.23
$6.02K
Gunstream Stephen
14 Nov 2022
President and CEO
Buy
1,716
$4.23
$7.26K
Hood Lisa
14 Nov 2022
Chief People Officer
Buy
2,046
$4.23
$8.66K
Gunstream Stephen
30 Sep 2022
President and CEO
Exercised, kept
40,000
$0.84
$33.47K
Lowell Matthew
1 Sep 2022
Chief Financial Officer
Buy
10,000
$4.61
$46.10K
MACKOWSKI J MATTHEW
24 Aug 2022
Director
Buy indirect
5,000
$4.97
$24.85K
MACKOWSKI J MATTHEW
24 Aug 2022
Director
Buy indirect
5,000
$4.98
$24.90K
Grossman Paul David
16 Aug 2022
Director
Buy
4,386
$5.62
$24.66K
Gunstream Stephen
15 Aug 2022
President and CEO
Buy
18,000
$5.13
$92.34K
Grossman Paul David
15 Aug 2022
Director
Buy
4,826
$5.15
$24.84K
Lowell Matthew
20 May 2022
Chief Financial Officer
Buy
10,000
$9.45
$94.48K
Gunstream Stephen
13 May 2022
President and CEO
Buy
1,292
$10.93
$14.12K
Hood Lisa
13 May 2022
Chief People Officer
Buy
772
$10.93
$8.44K
Hood Lisa
4 Feb 2022
Chief People Officer
Exercised, kept
30,462
$1.85
$56.23K
Davis Ted
15 Sep 2021
Director
Buy
1,429
$27.08
$38.70K
Davis Ted
8 Sep 2021
Director
Buy
1,300
$22.61
$29.39K
Davis Ted
25 Aug 2021
Director
Buy
9,090
$19.95
$181.35K

What was left out

Form 4 filings counted 74
Amendments (4/A) skipped 4
Filings about a different issuer 0
Unreadable filings 0
Joint filings 6
Sales on a Rule 10b5-1 plan 1
Sales straight out of an exercise 0
Sales at will 3
Transactions with no price 0
Shares from compensation/vesting 18,052,503
Sales filed before the plan box existed 1
History held since 28 Jun 2021