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WC

William M. Cook

MATV
DIRECTOR · MATIV HOLDINGS, INC. · CIK 0001226577
FILING MIX · LIFETIME84%/16%
BUYS
62
SELLS
12
TOTAL VALUE
$2.15M
COMPANIES
4
ACTIVE SINCE
Feb 2020
HOLDINGS NOW
126,096
AVG SELL PX
$171.62
TRADE KIND
SHOWING 74 / 74
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
10 backtested trades · 8 horizons · 2 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by William M. Cook, 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
7d10+40.00%+1.95%-0.34%+2.29%+1.75%—
14d10+50.00%+1.26%-0.26%+1.52%-0.57%—
30d10+70.00%+2.07%+0.90%+1.17%+0.45%—
60d10+50.00%+4.92%+2.42%+2.51%+1.40%—
90d10+60.00%+15.77%+4.91%+10.86%-1.13%—
180d10+50.00%+9.62%+7.25%+2.37%-1.58%—
1y10+60.00%+14.29%+17.24%-7.77%-4.60%—
2y10(2 pending)+50.00%+0.77%+38.72%-37.95%-32.34%—
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
MATV · 58,023 shares · as of Jan 1, 2026
014,50629,01243,51758,0232023202420252026SHARES 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
FLOW · 62 buys / 12 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
AXTA
AXALTA COATING SYSTEMS LTD.
SALE
5,832——0Mar 4, 2026Mar 5, 2026 ↗View →
AXTA
AXALTA COATING SYSTEMS LTD.
PURCHASE
5,832——43,959Mar 4, 2026Mar 5, 2026 ↗View →
AXTA
AXALTA COATING SYSTEMS LTD.
PURCHASEGRANT
Stock grant
6,313——6,313Mar 3, 2026Mar 5, 2026 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
306$12.49$3.8K57,230Jan 1, 2026Jan 5, 2026 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
793$11.82$9.4K58,023Jan 1, 2026Jan 5, 2026 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
439$12.57$5.5K55,653Oct 1, 2025Oct 3, 2025 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
1,271$11.31$14.4K56,924Oct 1, 2025Oct 3, 2025 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
2,108$6.82$14.4K55,214Jul 1, 2025Oct 3, 2025 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
18,328$6.82$125.0K52,491Jul 1, 2025Jul 2, 2025 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
615$5.55$3.4K53,106Jul 1, 2025Jul 2, 2025 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASE
5,000$5.84$29.2K26,436May 29, 2025Jun 2, 2025 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
5,008$6.24$31.2K31,622Apr 1, 2025Apr 3, 2025 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
438$6.07$2.7K34,163Apr 1, 2025Apr 3, 2025 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
2,103$6.24$13.1K33,725Apr 1, 2025Apr 3, 2025 ↗View →
AXTA
AXALTA COATING SYSTEMS LTD.
PURCHASEGRANT
Stock grant
5,832——5,832Mar 4, 2025Mar 6, 2025 ↗View →
AXTA
AXALTA COATING SYSTEMS LTD.
SALE
6,157——0Feb 28, 2025Mar 4, 2025 ↗View →
AXTA
AXALTA COATING SYSTEMS LTD.
PURCHASE
6,157——38,127Feb 28, 2025Mar 4, 2025 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
171$13.15$2.2K26,614Jan 3, 2025Jan 7, 2025 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
1,060$10.90$11.6K26,443Jan 3, 2025Jan 7, 2025 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
2,866$10.90$31.2K25,383Jan 3, 2025Jan 7, 2025 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASE
2,500$12.45$31.1K21,436Nov 15, 2024Nov 15, 2024 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
1,839$16.99$31.2K20,798Oct 1, 2024Oct 3, 2024 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
1,617$16.99$27.5K22,415Oct 1, 2024Oct 3, 2024 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
102$18.56$1.9K22,517Oct 1, 2024Oct 3, 2024 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
1,400$16.96$23.7K17,475Jul 1, 2024Jul 2, 2024 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
1,399$16.96$23.7K18,874Jul 1, 2024Jul 2, 2024 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
85$18.72$1.6K18,959Jul 1, 2024Jul 2, 2024 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
1,266$18.75$23.7K14,867Apr 1, 2024Apr 3, 2024 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
75$18.00$1.4K16,075Apr 1, 2024Apr 3, 2024 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
1,133$18.75$21.2K16,000Apr 1, 2024Apr 3, 2024 ↗View →
AXTA
AXALTA COATING SYSTEMS LTD.
PURCHASEGRANT
Stock grant
6,157——6,157Feb 28, 2024Mar 1, 2024 ↗View →
AXTA
AXALTA COATING SYSTEMS LTD.
PURCHASE
6,711——31,970Feb 28, 2024Mar 1, 2024 ↗View →
AXTA
AXALTA COATING SYSTEMS LTD.
SALE
6,711——0Feb 28, 2024Mar 1, 2024 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
1,387$15.31$21.2K13,314Jan 2, 2024Jan 4, 2024 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
287$15.96$4.6K13,601Jan 2, 2024Jan 4, 2024 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
1,551$15.31$23.7K11,927Jan 2, 2024Jan 4, 2024 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
1,665$14.26$23.7K8,887Oct 1, 2023Oct 3, 2023 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
1,489$14.26$21.2K10,376Oct 1, 2023Oct 3, 2023 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASE
1,500$15.52$23.3K18,936Sep 15, 2023Sep 18, 2023 ↗View →
AXTA
AXALTA COATING SYSTEMS LTD.
PURCHASE
1,500$26.81$40.2K6,000Sep 12, 2023Sep 14, 2023 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
1,106$21.47$23.7K3,258Apr 1, 2023Apr 5, 2023 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
989$21.47$21.2K4,247Apr 1, 2023Apr 5, 2023 ↗View →
AXTA
AXALTA COATING SYSTEMS LTD.
PURCHASE
2,500$29.55$73.9K4,500Mar 14, 2023Mar 15, 2023 ↗View →
AXTA
AXALTA COATING SYSTEMS LTD.
PURCHASEGRANT
Stock grant
6,711——6,711Feb 28, 2023Mar 2, 2023 ↗View →
AXTA
AXALTA COATING SYSTEMS LTD.
PURCHASE
6,939——25,259Feb 15, 2023Feb 17, 2023 ↗View →
AXTA
AXALTA COATING SYSTEMS LTD.
SALE
6,939——0Feb 15, 2023Feb 17, 2023 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
1,016$20.90$21.2K16,686Jan 1, 2023Jan 4, 2023 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
1,136$20.90$23.7K15,670Jan 1, 2023Jan 4, 2023 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASE
1,500$29.09$43.6K17,534Nov 14, 2022Nov 16, 2022 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASEGRANT
Stock grant
1,189$22.08$26.3K16,034Oct 3, 2022Oct 5, 2022 ↗View →
MATV
MATIV HOLDINGS, INC.
PURCHASE
1,500$24.93$37.4K14,845Sep 19, 2022Sep 20, 2022 ↗View →
NP
NEPTUNE INSURANCE HOLDINGS INC.
SALE
9,131——0Jul 6, 2022Jul 29, 2022 ↗View →
IEX
IDEX CORP /DE/
PURCHASEGRANT
Stock grant
1,095——24,114May 6, 2022May 10, 2022 ↗View →
AXTA
AXALTA COATING SYSTEMS LTD.
PURCHASE
2,000$24.64$49.3K20,320Mar 4, 2022Mar 7, 2022 ↗View →
AXTA
AXALTA COATING SYSTEMS LTD.
PURCHASE
7,208——18,320Mar 3, 2022Mar 7, 2022 ↗View →
AXTA
AXALTA COATING SYSTEMS LTD.
SALE
7,208——0Mar 3, 2022Mar 7, 2022 ↗View →
AXTA
AXALTA COATING SYSTEMS LTD.
PURCHASEGRANT
Stock grant
6,939——6,939Feb 15, 2022Feb 17, 2022 ↗View →
IEX
IDEX CORP /DE/
SALE
3,530——0Nov 1, 2021Nov 2, 2021 ↗View →
IEX
IDEX CORP /DE/
PURCHASE
3,530$42.86$151.3K23,698Nov 1, 2021Nov 2, 2021 ↗View →
IEX
IDEX CORP /DE/
SALE
679$223.03$151.4K23,019Nov 1, 2021Nov 2, 2021 ↗View →
NP
NEPTUNE INSURANCE HOLDINGS INC.
PURCHASEGRANT
Stock grant
1,850$54.06$100.0K10,631May 20, 2021May 21, 2021 ↗View →
IEX
IDEX CORP /DE/
PURCHASEGRANT
Stock grant
895——20,168May 12, 2021May 14, 2021 ↗View →
AXTA
AXALTA COATING SYSTEMS LTD.
PURCHASEGRANT
Stock grant
7,208——7,208Mar 3, 2021Mar 5, 2021 ↗View →
AXTA
AXALTA COATING SYSTEMS LTD.
SALE
6,727——0Feb 19, 2021Feb 23, 2021 ↗View →
AXTA
AXALTA COATING SYSTEMS LTD.
PURCHASE
6,727——11,112Feb 19, 2021Feb 23, 2021 ↗View →
NP
NEPTUNE INSURANCE HOLDINGS INC.
PURCHASE
1,000$44.68$44.7K8,781Aug 26, 2020Aug 27, 2020 ↗View →
AXTA
AXALTA COATING SYSTEMS LTD.
SALE
4,385——0May 30, 2020Jun 15, 2020 ↗View →
AXTA
AXALTA COATING SYSTEMS LTD.
PURCHASE
4,385——4,385May 30, 2020Jun 15, 2020 ↗View →
IEX
IDEX CORP /DE/
SALE
3,190$160.68$512.6K19,273May 28, 2020May 28, 2020 ↗View →
IEX
IDEX CORP /DE/
PURCHASE
3,190$40.89$130.4K22,463May 28, 2020May 28, 2020 ↗View →
IEX
IDEX CORP /DE/
SALE
3,190——6,605May 28, 2020May 28, 2020 ↗View →
NP
NEPTUNE INSURANCE HOLDINGS INC.
PURCHASEGRANT
Stock grant
2,016$49.60$100.0K7,781May 21, 2020May 22, 2020 ↗View →
IEX
IDEX CORP /DE/
PURCHASEGRANT
Stock grant
1,045——19,273May 7, 2020May 11, 2020 ↗View →
AXTA
AXALTA COATING SYSTEMS LTD.
PURCHASEGRANT
Stock grant
6,727——6,727Feb 19, 2020Feb 21, 2020 ↗View →
Other insiders · MATV
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About this filer
CIK 0001226577
ROLE
Director
PRIMARY
MATV
COMPANIES
4
ACTIVE SINCE
Feb 2020
MARKETPEEL · /INSIDER/0001226577DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

The morning brief, before the bell.

One short email. Insider buys, congressional trades, and plain-English analysis.

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