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Michael R. Kenison

PRLB
VP AND GM OF THE AMERICA'S · PROTO LABS INC · CIK 0001870293
FILING MIX · LIFETIME45%/55%
BUYS
24
SELLS
29
TOTAL VALUE
$3.75M
COMPANIES
1
ACTIVE SINCE
Feb 2022
HOLDINGS NOW
34,713
AVG SELL PX
$62.17
TRADE KIND
SHOWING 53 / 53
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
9 backtested trades · 8 horizons · 32 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Michael R. Kenison, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d9+22.22%+0.54%+0.44%-0.33%+0.78%—
14d9+22.22%-0.41%+0.22%-3.24%-2.51%—
30d9+22.22%+0.40%-1.03%+1.43%+5.61%—
60d9+22.22%+2.62%+1.57%+1.05%+2.49%—
90d9(6 pending)+0.00%+11.16%+5.24%+5.92%-1.27%—
180d9(8 pending)+0.00%+40.53%————
1y9(9 pending)——————
2y9(9 pending)——————
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
PRLB · 34,713 shares · as of May 12, 2026
09,25718,51327,77037,0262023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 24 buys / 29 sellsCOVERAGE · 18 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
PRLB
PROTO LABS INC
SALE10b5-1
10b5-1 plan
6,643$70.30$467.0K18,683May 12, 2026May 13, 2026 ↗View →
PRLB
PROTO LABS INC
SALE10b5-1
10b5-1 plan
1,613$67.58$109.0K33,100May 12, 2026May 13, 2026 ↗View →
PRLB
PROTO LABS INC
PURCHASE
Chief Operations Officer
1,928$33.84$65.2K29,114May 12, 2026May 13, 2026 ↗View →
PRLB
PROTO LABS INC
SALE
Chief Operations Officer
1,928——1,928May 12, 2026May 13, 2026 ↗View →
PRLB
PROTO LABS INC
SALE
Chief Operations Officer
4,042——0May 12, 2026May 13, 2026 ↗View →
PRLB
PROTO LABS INC
SALE10b5-1
10b5-1 plan
3,576$69.78$249.5K25,326May 12, 2026May 13, 2026 ↗View →
PRLB
PROTO LABS INC
SALE
Chief Operations Officer
1,557——4,674May 12, 2026May 13, 2026 ↗View →
PRLB
PROTO LABS INC
PURCHASE
Chief Operations Officer
1,557$39.61$61.7K30,671May 12, 2026May 13, 2026 ↗View →
PRLB
PROTO LABS INC
SALE10b5-1
10b5-1 plan
4,198$68.70$288.4K28,902May 12, 2026May 13, 2026 ↗View →
PRLB
PROTO LABS INC
PURCHASE
Chief Operations Officer
4,042$59.40$240.1K34,713May 12, 2026May 13, 2026 ↗View →
PRLB
PROTO LABS INC
SALE10b5-1
10b5-1 plan
7,433$70.26$522.3K27,186May 11, 2026May 13, 2026 ↗View →
PRLB
PROTO LABS INC
SALE
Chief Operations Officer
3,756——3,856May 11, 2026May 13, 2026 ↗View →
PRLB
PROTO LABS INC
PURCHASE
Chief Operations Officer
3,677$33.52$123.3K34,619May 11, 2026May 13, 2026 ↗View →
PRLB
PROTO LABS INC
SALE
Chief Operations Officer
3,677——3,778May 11, 2026May 13, 2026 ↗View →
PRLB
PROTO LABS INC
PURCHASE
Chief Operations Officer
3,756$33.84$127.1K30,942May 11, 2026May 13, 2026 ↗View →
PRLB
PROTO LABS INC
SALE10b5-1
10b5-1 plan
200$70.00$14.0K27,186May 7, 2026May 8, 2026 ↗View →
PRLB
PROTO LABS INC
PURCHASE
Chief Operations Officer
100$33.52$3.4K27,386May 7, 2026May 8, 2026 ↗View →
PRLB
PROTO LABS INC
SALE
Chief Operations Officer
100——7,455May 7, 2026May 8, 2026 ↗View →
PRLB
PROTO LABS INC
SALE
Chief Operations Officer
100——7,612May 7, 2026May 8, 2026 ↗View →
PRLB
PROTO LABS INC
PURCHASE
Chief Operations Officer
100$33.84$3.4K27,286May 7, 2026May 8, 2026 ↗View →
PRLB
PROTO LABS INC
PURCHASEGRANT
Stock grant
2,415——27,717Feb 25, 2026Feb 27, 2026 ↗View →
PRLB
PROTO LABS INC
PURCHASEGRANT
Stock grant
4,404——4,404Feb 25, 2026Feb 27, 2026 ↗View →
PRLB
PROTO LABS INC
SALE
Chief Operations Officer
531$62.63$33.3K27,186Feb 25, 2026Feb 27, 2026 ↗View →
PRLB
PROTO LABS INC
SALE10b5-1
10b5-1 plan
5,000$66.46$332.3K25,302Feb 17, 2026Feb 18, 2026 ↗View →
PRLB
PROTO LABS INC
SALE
Chief Operations Officer
1,540$67.52$104.0K30,302Feb 13, 2026Feb 18, 2026 ↗View →
PRLB
PROTO LABS INC
SALE
Chief Operations Officer
2,684$53.18$142.7K31,842Feb 10, 2026Feb 12, 2026 ↗View →
PRLB
PROTO LABS INC
SALE10b5-1
10b5-1 plan
2,500$60.00$150.0K34,526Feb 6, 2026Feb 9, 2026 ↗View →
PRLB
PROTO LABS INC
PURCHASEGRANT
Stock grant
8,128——37,026Jan 29, 2026Feb 4, 2026 ↗View →
PRLB
PROTO LABS INC
SALE
Chief Operations Officer
3,048——4,664Nov 25, 2025Nov 26, 2025 ↗View →
PRLB
PROTO LABS INC
SALE10b5-1
10b5-1 plan
3,048$50.17$152.9K28,898Nov 25, 2025Nov 26, 2025 ↗View →
PRLB
PROTO LABS INC
PURCHASE
Chief Operations Officer
3,048$33.84$103.1K31,946Nov 25, 2025Nov 26, 2025 ↗View →
PRLB
PROTO LABS INC
PURCHASE
Chief Operations Officer
3,048$33.84$103.1K31,946Nov 25, 2025Dec 3, 2025 ↗View →
PRLB
PROTO LABS INC
SALE
Chief Operations Officer
3,048——0Nov 25, 2025Dec 3, 2025 ↗View →
PRLB
PROTO LABS INC
SALE10b5-1
10b5-1 plan
3,048$50.17$152.9K28,898Nov 25, 2025Dec 3, 2025 ↗View →
PRLB
PROTO LABS INC
SALE
Chief Operations Officer
204$40.87$8.3K28,841May 20, 2025May 22, 2025 ↗View →
PRLB
PROTO LABS INC
PURCHASEGRANT
Stock grant
6,231——6,231Feb 25, 2025Feb 27, 2025 ↗View →
PRLB
PROTO LABS INC
PURCHASEGRANT
Stock grant
6,943——28,982Feb 25, 2025Feb 27, 2025 ↗View →
PRLB
PROTO LABS INC
SALE
Chief Operations Officer
1,696$45.03$76.4K22,039Feb 13, 2025Feb 18, 2025 ↗View →
PRLB
PROTO LABS INC
SALE
Chief Operations Officer
580$45.03$26.1K23,735Feb 13, 2025Feb 18, 2025 ↗View →
PRLB
PROTO LABS INC
PURCHASEGRANT
Stock grant
1,894——24,315Feb 13, 2025Feb 18, 2025 ↗View →
PRLB
PROTO LABS INC
SALE
VP and GM of the America's
336$31.81$10.7K22,351May 20, 2024May 22, 2024 ↗View →
PRLB
PROTO LABS INC
PURCHASEGRANT
Stock grant
8,205——22,405Feb 13, 2024Feb 15, 2024 ↗View →
PRLB
PROTO LABS INC
PURCHASEGRANT
Stock grant
7,555——7,555Feb 13, 2024Feb 15, 2024 ↗View →
PRLB
PROTO LABS INC
SALE
VP and GM of the America's
1,070$33.52$35.9K14,200Feb 13, 2024Feb 15, 2024 ↗View →
PRLB
PROTO LABS INC
PURCHASEGRANT
Stock grant
3,048——3,048Feb 14, 2023Feb 15, 2023 ↗View →
PRLB
PROTO LABS INC
PURCHASEGRANT
Stock grant
4,064——4,064Feb 14, 2023Feb 15, 2023 ↗View →
PRLB
PROTO LABS INC
PURCHASEGRANT
Stock grant
8,127——14,724Feb 14, 2023Feb 15, 2023 ↗View →
PRLB
PROTO LABS INC
PURCHASEGRANT
Stock grant
7,712——7,712Feb 14, 2023Feb 15, 2023 ↗View →
PRLB
PROTO LABS INC
SALE
VP and GM of the America's
340$34.23$11.6K6,597Feb 13, 2023Feb 15, 2023 ↗View →
PRLB
PROTO LABS INC
SALE
VP and GM of the America's
771$45.68$35.2K6,675May 23, 2022May 25, 2022 ↗View →
PRLB
PROTO LABS INC
PURCHASEGRANT
Stock grant
4,042——4,042Feb 15, 2022Feb 17, 2022 ↗View →
PRLB
PROTO LABS INC
PURCHASEGRANT
Stock grant
1,894——1,894Feb 15, 2022Feb 17, 2022 ↗View →
PRLB
PROTO LABS INC
PURCHASEGRANT
Stock grant
3,788——7,221Feb 15, 2022Feb 17, 2022 ↗View →
Other insiders · PRLB
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About this filer
CIK 0001870293
ROLE
VP and GM of the America's
PRIMARY
PRLB
COMPANIES
1
ACTIVE SINCE
Feb 2022
MARKETPEEL · /INSIDER/0001870293DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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