MarketPeel
Insider Trading Intelligence
GC

Gerald G. Colella

MKSI
DIRECTOR · MKS INC · CIK 0001256715
FILING MIX · LIFETIME42%/58%
BUYS
26
SELLS
36
TOTAL VALUE
$23.67M
COMPANIES
2
ACTIVE SINCE
Jan 2020
HOLDINGS NOW
42,376
AVG SELL PX
$164.31
TRADE KIND
SHOWING 62 / 62
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
13 backtested trades · 8 horizons · 8 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Gerald G. Colella, 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
7d13+38.46%-0.66%+0.42%-1.08%-1.94%
14d13+46.15%-4.93%+0.49%-5.43%-3.39%
30d13+53.85%-4.09%-1.33%-2.75%-4.31%
60d13+30.77%-7.12%-2.02%-5.10%+3.47%
90d13+46.15%+0.85%+1.35%-4.77%-5.95%
180d13(2 pending)+27.27%+3.57%+8.06%-4.49%-0.91%
1y13(2 pending)+18.18%+30.64%+21.95%+8.69%-12.98%
2y13(4 pending)+33.33%+26.57%+35.95%-9.38%-20.51%
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
MKSI · 23,030 shares · as of May 27, 2026
025,00050,00075,000100,000202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 26 buys / 36 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
MKSI
MKS INC
SALE10b5-1
10b5-1 plan
1,626$336.54$547.2K23,030May 27, 2026May 28, 2026View →
MKSI
MKS INC
SALE10b5-1
10b5-1 plan
1,811$335.46$607.5K24,656May 27, 2026May 28, 2026View →
MKSI
MKS INC
SALE10b5-1
10b5-1 plan
2,800$338.58$948.0K20,017May 27, 2026May 28, 2026View →
MKSI
MKS INC
SALE10b5-1
10b5-1 plan
8,210$331.45$2.72M31,343May 27, 2026May 28, 2026View →
MKSI
MKS INC
SALE10b5-1
10b5-1 plan
4,876$332.04$1.62M26,467May 27, 2026May 28, 2026View →
MKSI
MKS INC
SALE10b5-1
10b5-1 plan
464$330.38$153.3K39,553May 27, 2026May 28, 2026View →
MKSI
MKS INC
SALE10b5-1
10b5-1 plan
213$337.05$71.8K22,817May 27, 2026May 28, 2026View →
MKSI
MKS INC
PURCHASEGRANT
Stock grant
781.9598,998.886May 11, 2026May 12, 2026View →
MKSI
MKS INC
SALE
10,000$253.97$2.54M40,017Feb 24, 2026Feb 24, 2026View →
MKSI
MKS INC
SALE
10,000$252.90$2.53M50,017Feb 20, 2026Feb 24, 2026View →
CMCO
COLUMBUS MCKINNON CORP
PURCHASEGRANT
Stock grant
8,553$15.21$130.1K19,346Jul 21, 2025Jul 22, 2025View →
MKSI
MKS INC
PURCHASEGRANT
Stock grant
2,479.3398,216.927May 12, 2025May 13, 2025View →
MKSI
MKS INC
SALE
8,000$104.53$836.2K60,017Feb 18, 2025Feb 19, 2025View →
CMCO
COLUMBUS MCKINNON CORP
PURCHASE
5,500$20.47$112.6K5,500Feb 13, 2025Feb 13, 2025View →
CMCO
COLUMBUS MCKINNON CORP
PURCHASEGRANT
Stock grant
3,514$37.00$130.0K10,793Jul 22, 2024Jul 24, 2024View →
MKSI
MKS INC
PURCHASEGRANT
Stock grant
1,621.7975,737.588May 7, 2024May 8, 2024View →
MKSI
MKS INC
SALE10b5-1
10b5-1 plan
10,000$120.00$1.20M68,017Feb 9, 2024Feb 12, 2024View →
MKSI
MKS INC
SALE10b5-1
10b5-1 plan
10,000$110.00$1.10M78,017Jan 22, 2024Jan 23, 2024View →
MKSI
MKS INC
SALE10b5-1
10b5-1 plan
10,000$100.01$1.00M88,017Aug 31, 2023Sep 1, 2023View →
CMCO
COLUMBUS MCKINNON CORP
PURCHASEGRANT
Stock grant
3,168$41.04$130.0K7,279Jul 24, 2023Jul 25, 2023View →
MKSI
MKS INC
PURCHASEGRANT
Stock grant
2,369.1074,115.791May 16, 2023May 17, 2023View →
MKSI
MKS INC
SALEGRANT
Gift
1,00098,017May 11, 2023May 12, 2023View →
MKSI
MKS INC
PURCHASE
1,000$117.51$117.5K99,017Aug 1, 2022Aug 2, 2022View →
CMCO
COLUMBUS MCKINNON CORP
PURCHASEGRANT
Stock grant
4,111$29.19$120.0K4,111Jul 18, 2022Jul 25, 2022View →
MKSI
MKS INC
SALEGRANT
Gift
13096,870May 10, 2022May 11, 2022View →
MKSI
MKS INC
PURCHASEGRANT
Stock grant
1,745.0482,893.684May 10, 2022May 11, 2022View →
MKSI
MKS INC
SALE
3,000$155.16$465.5K97,000Nov 4, 2021Nov 5, 2021View →
MKSI
MKS INC
SALEGRANT
Gift
450100,000Oct 20, 2021Oct 21, 2021View →
MKSI
MKS INC
PURCHASEGRANT
Stock grant
1,146.7893,136.636May 11, 2021May 12, 2021View →
MKSI
MKS INC
SALEGRANT
Gift
24,9340Dec 8, 2020Dec 8, 2020View →
MKSI
MKS INC
SALE
6,000$128.37$770.2K82,596Aug 3, 2020Aug 4, 2020View →
MKSI
MKS INC
SALE
8,574.45467,550.807Jul 2, 2020Jul 3, 2020View →
MKSI
MKS INC
SALE
7,550.9170Jul 2, 2020Jul 3, 2020View →
MKSI
MKS INC
PURCHASE
6,60724,257.613Jul 2, 2020Jul 3, 2020View →
MKSI
MKS INC
PURCHASE
7,260.92155,461.096Jul 2, 2020Jul 3, 2020View →
MKSI
MKS INC
SALE
6,606.06647,252.168Jul 2, 2020Jul 3, 2020View →
MKSI
MKS INC
PURCHASE
7,085.57317,650.613Jul 2, 2020Jul 3, 2020View →
MKSI
MKS INC
SALE
7,551.9177,550.917Jul 2, 2020Jul 3, 2020View →
MKSI
MKS INC
PURCHASE
7,551.91770,564.93Jul 2, 2020Jul 3, 2020View →
MKSI
MKS INC
SALE
6,60753,858.234Jul 2, 2020Jul 3, 2020View →
MKSI
MKS INC
SALE
5,03842,214.168Jul 2, 2020Jul 3, 2020View →
MKSI
MKS INC
PURCHASE
7,550.91778,115.847Jul 2, 2020Jul 3, 2020View →
MKSI
MKS INC
PURCHASE
7,551.91763,013.013Jul 2, 2020Jul 3, 2020View →
MKSI
MKS INC
PURCHASE
5,037.57540,939.254Jul 2, 2020Jul 3, 2020View →
MKSI
MKS INC
SALE
7,085.57360,465.234Jul 2, 2020Jul 3, 2020View →
MKSI
MKS INC
PURCHASE
7,260.92148,200.175Jul 2, 2020Jul 3, 2020View →
MKSI
MKS INC
SALE
7,260.92122,654.751Jul 2, 2020Jul 3, 2020View →
MKSI
MKS INC
SALE
5,037.57537,176.593Jul 2, 2020Jul 3, 2020View →
MKSI
MKS INC
PURCHASE
8,574.45410,565.04Jul 2, 2020Jul 3, 2020View →
MKSI
MKS INC
SALE
7,260.92129,915.672Jul 2, 2020Jul 3, 2020View →
MKSI
MKS INC
PURCHASE
6,606.06630,863.679Jul 2, 2020Jul 3, 2020View →
MKSI
MKS INC
PURCHASE
5,03835,901.679Jul 2, 2020Jul 3, 2020View →
MKSI
MKS INC
SALE
7,551.91715,102.834Jul 2, 2020Jul 3, 2020View →
MKSI
MKS INC
SALE
32,316$113.79$3.68M45,799.847Jul 2, 2020Jul 3, 2020View →
MKSI
MKS INC
SALE
5,000$100.17$500.9K44,786May 19, 2020May 20, 2020View →
MKSI
MKS INC
PURCHASEGRANT
Stock grant
1,988.6651,990.586May 11, 2020May 12, 2020View →
MKSI
MKS INC
SALE
5,000$96.55$482.8K49,786May 1, 2020May 5, 2020View →
MKSI
MKS INC
PURCHASE
7,260.9217,260.921Feb 18, 2020Feb 19, 2020View →
MKSI
MKS INC
SALE
3,221$113.87$366.8K4,039.921Feb 18, 2020Feb 19, 2020View →
MKSI
MKS INC
SALE
7,260.92176,125.261Feb 18, 2020Feb 19, 2020View →
MKSI
MKS INC
SALE
7,000$113.05$791.3K50,748Feb 4, 2020Feb 5, 2020View →
MKSI
MKS INC
PURCHASEGRANT
Stock grant
21,782.76383,386.182Jan 27, 2020Jan 28, 2020View →
Other insiders · MKSI
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About this filer
CIK 0001256715
ROLE
Director
PRIMARY
MKSI
COMPANIES
2
ACTIVE SINCE
Jan 2020
MARKETPEEL · /INSIDER/0001256715DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

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