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DZ

Debra Zumwalt

EXPO
DIRECTOR · EXPONENT INC · CIK 0001609169
FILING MIX · LIFETIME38%/62%
BUYS
21
SELLS
35
TOTAL VALUE
$632.1K
COMPANIES
2
ACTIVE SINCE
Jan 2020
HOLDINGS NOW
30,060
AVG SELL PX
$85.50
TRADE KIND
SHOWING 56 / 56
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
27 backtested trades · 8 horizons · 18 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Debra Zumwalt, 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
7d27+48.15%+0.77%+0.58%+0.19%-0.10%—
14d27+33.33%+0.95%+0.95%+0.38%-0.37%—
30d27+40.74%+1.21%+2.00%-0.79%-2.68%—
60d27(1 pending)+42.31%+2.60%+3.58%-0.17%-2.75%—
90d27(1 pending)+42.31%+3.32%+3.79%-0.47%-2.52%—
180d27(2 pending)+44.00%+6.95%+8.56%-1.61%+2.44%—
1y27(5 pending)+18.18%+23.86%+17.63%+6.23%+6.94%—
2y27(9 pending)+5.56%+54.50%+32.46%+22.04%+21.14%—
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
EXPO · 2,859 shares · as of Jun 4, 2026
07,95815,91523,87331,830202120222023202420252026SHARES 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 · 21 buys / 35 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
EXPO
EXPONENT INC
PURCHASEGRANT
Stock grant
2,859——2,859Jun 4, 2026Jun 4, 2026 ↗View →
EXPO
EXPONENT INC
SALE
2,009——0Jun 3, 2026Jun 4, 2026 ↗View →
EXPO
EXPONENT INC
PURCHASE
2,009——31,830Jun 3, 2026Jun 4, 2026 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE10b5-1
10b5-1 plan
598$118.44$70.8K27,201May 11, 2026May 13, 2026 ↗View →
HURN
HURON CONSULTING GROUP INC.
PURCHASEGRANT
Stock grant
1,500——27,799May 8, 2026May 12, 2026 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE10b5-1
10b5-1 plan
170$126.93$21.6K26,299Apr 2, 2026Apr 6, 2026 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE10b5-1
10b5-1 plan
170$170.89$29.1K26,469Jan 5, 2026Jan 7, 2026 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE10b5-1
10b5-1 plan
170$146.92$25.0K26,639Oct 2, 2025Oct 6, 2025 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE10b5-1
10b5-1 plan
170$135.38$23.0K26,809Aug 14, 2025Aug 18, 2025 ↗View →
EXPO
EXPONENT INC
PURCHASEGRANT
Stock grant
2,009——2,009Jun 5, 2025Jun 9, 2025 ↗View →
EXPO
EXPONENT INC
SALE
1,525——0Jun 4, 2025Jun 9, 2025 ↗View →
EXPO
EXPONENT INC
PURCHASE
1,525——29,821Jun 4, 2025Jun 9, 2025 ↗View →
HURN
HURON CONSULTING GROUP INC.
PURCHASEGRANT
Stock grant
1,196——26,979May 9, 2025May 13, 2025 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE10b5-1
10b5-1 plan
223$144.33$32.2K25,783Apr 2, 2025Apr 4, 2025 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE10b5-1
10b5-1 plan
222$123.50$27.4K26,006Jan 3, 2025Jan 7, 2025 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE10b5-1
10b5-1 plan
222$106.80$23.7K26,228Oct 2, 2024Oct 4, 2024 ↗View →
EXPO
EXPONENT INC
SALEGRANT
Gift
313$104.10$32.6K28,296Aug 21, 2024Aug 22, 2024 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE10b5-1
10b5-1 plan
222$104.92$23.3K26,450Aug 19, 2024Aug 21, 2024 ↗View →
EXPO
EXPONENT INC
PURCHASEGRANT
Stock grant
1,525——1,525Jun 6, 2024Jun 10, 2024 ↗View →
EXPO
EXPONENT INC
SALE
1,506——0Jun 5, 2024Jun 6, 2024 ↗View →
EXPO
EXPONENT INC
PURCHASE
1,506——28,609Jun 5, 2024Jun 6, 2024 ↗View →
HURN
HURON CONSULTING GROUP INC.
PURCHASEGRANT
Stock grant
1,969——26,672May 3, 2024May 7, 2024 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE10b5-1
10b5-1 plan
259$94.35$24.4K24,703Apr 2, 2024Apr 4, 2024 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE10b5-1
10b5-1 plan
259$101.56$26.3K24,962Jan 3, 2024Jan 5, 2024 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE10b5-1
10b5-1 plan
259$103.17$26.7K25,221Oct 3, 2023Oct 5, 2023 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE10b5-1
10b5-1 plan
259$98.15$25.4K25,480Aug 10, 2023Aug 14, 2023 ↗View →
EXPO
EXPONENT INC
PURCHASEGRANT
Stock grant
1,506——1,506Jun 8, 2023Jun 9, 2023 ↗View →
EXPO
EXPONENT INC
PURCHASE
1,489——27,103Jun 7, 2023Jun 9, 2023 ↗View →
EXPO
EXPONENT INC
SALE
1,489——0Jun 7, 2023Jun 9, 2023 ↗View →
HURN
HURON CONSULTING GROUP INC.
PURCHASEGRANT
Stock grant
2,097——25,739May 15, 2023May 17, 2023 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE10b5-1
10b5-1 plan
282$79.98$22.6K23,642Apr 5, 2023Apr 7, 2023 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE
282$72.61$20.5K23,924Jan 4, 2023Jan 6, 2023 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE
282$67.90$19.1K24,206Oct 4, 2022Oct 6, 2022 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE
282$64.69$18.2K24,488Jul 6, 2022Jul 8, 2022 ↗View →
EXPO
EXPONENT INC
PURCHASEGRANT
Stock grant
1,489——1,489Jun 2, 2022Jun 6, 2022 ↗View →
EXPO
EXPONENT INC
PURCHASE
1,474——25,614Jun 1, 2022Jun 1, 2022 ↗View →
EXPO
EXPONENT INC
SALE
1,474——0Jun 1, 2022Jun 1, 2022 ↗View →
HURN
HURON CONSULTING GROUP INC.
PURCHASEGRANT
Stock grant
3,217——24,770May 6, 2022May 10, 2022 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE
300$46.37$13.9K21,553Apr 4, 2022Apr 6, 2022 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE
300$50.52$15.2K21,853Jan 4, 2022Jan 6, 2022 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE
300$52.00$15.6K22,153Oct 4, 2021Oct 6, 2021 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE
300$50.35$15.1K22,453Jul 2, 2021Jul 7, 2021 ↗View →
EXPO
EXPONENT INC
PURCHASEGRANT
Stock grant
1,474——1,474Jun 3, 2021Jun 4, 2021 ↗View →
EXPO
EXPONENT INC
SALE
1,675——0Jun 2, 2021Jun 4, 2021 ↗View →
EXPO
EXPONENT INC
PURCHASE
1,675——24,140Jun 2, 2021Jun 4, 2021 ↗View →
HURN
HURON CONSULTING GROUP INC.
PURCHASEGRANT
Stock grant
3,000——22,753May 7, 2021May 11, 2021 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE
205$52.28$10.7K19,753Apr 5, 2021Apr 7, 2021 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE
205$56.79$11.6K19,958Jan 5, 2021Jan 7, 2021 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE
205$39.38$8.1K20,163Oct 1, 2020Oct 5, 2020 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE
205$44.20$9.1K20,368Jul 1, 2020Jul 6, 2020 ↗View →
EXPO
EXPONENT INC
PURCHASEGRANT
Stock grant
1,675——1,675May 28, 2020May 29, 2020 ↗View →
EXPO
EXPONENT INC
PURCHASE
2,229——22,465May 27, 2020May 29, 2020 ↗View →
EXPO
EXPONENT INC
SALE
2,229——0May 27, 2020May 29, 2020 ↗View →
HURN
HURON CONSULTING GROUP INC.
PURCHASEGRANT
Stock grant
3,767——20,573May 8, 2020May 12, 2020 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE
365$43.56$15.9K16,806Apr 1, 2020Apr 3, 2020 ↗View →
HURN
HURON CONSULTING GROUP INC.
SALE
364$68.70$25.0K17,171Jan 2, 2020Jan 6, 2020 ↗View →
Other insiders · EXPO
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About this filer
CIK 0001609169
ROLE
Director
PRIMARY
EXPO
COMPANIES
2
ACTIVE SINCE
Jan 2020
MARKETPEEL · /INSIDER/0001609169DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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