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Stefan A. Dyckerhoff

ALAB
DIRECTOR · ASTERA LABS, INC. · CIK 0001484394
FILING MIX · LIFETIME25%/75%
BUYS
29
SELLS
86
TOTAL VALUE
$58.78M
COMPANIES
2
ACTIVE SINCE
Sep 2020
HOLDINGS NOW
29,413
AVG SELL PX
$125.82
TRADE KIND
SHOWING 115 / 115
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
40 backtested trades · 8 horizons · 90 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Stefan A. Dyckerhoff, 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
7d40+25.00%+6.66%+0.81%+5.86%+9.58%4.39
14d40+15.00%+16.49%+0.90%+10.22%+13.17%8.45
30d40+0.00%+35.58%+1.55%+35.08%+31.47%8.92
60d40(6 pending)+0.00%+46.82%+2.55%+44.28%+40.90%7.45
90d40(12 pending)+42.86%-0.67%+3.38%-4.06%-0.70%—
180d40(12 pending)+96.43%-14.64%+0.39%-15.02%-16.30%—
1y40(20 pending)+0.00%+59.05%+13.36%+45.69%+46.58%—
2y40(40 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
ALAB · 4,631 shares · as of Jul 1, 2026
04,190,3988,380,79512,571,19316,761,59020252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
2026
FLOW · 29 buys / 86 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ALAB
ASTERA LABS, INC.
SALE10b5-1
10b5-1 plan
661$450.00$297.4K4,631Jul 1, 2026Jul 2, 2026 ↗View →
ALAB
ASTERA LABS, INC.
SALE10b5-1
10b5-1 plan
3,505$450.00$1.58M57,466Jul 1, 2026Jul 2, 2026 ↗View →
ALAB
ASTERA LABS, INC.
SALE10b5-1
10b5-1 plan
8,333$450.00$3.75M311,399Jul 1, 2026Jul 2, 2026 ↗View →
ALAB
ASTERA LABS, INC.
PURCHASEGRANT
Stock grant
837——60,971Jun 4, 2026Jun 5, 2026 ↗View →
ALAB
ASTERA LABS, INC.
SALE10b5-1
10b5-1 plan
1,019$365.09$372.0K319,732Jun 3, 2026Jun 5, 2026 ↗View →
ALAB
ASTERA LABS, INC.
SALE10b5-1
10b5-1 plan
580$364.25$211.3K5,373Jun 3, 2026Jun 5, 2026 ↗View →
ALAB
ASTERA LABS, INC.
SALE10b5-1
10b5-1 plan
7,314$364.25$2.66M320,751Jun 3, 2026Jun 5, 2026 ↗View →
ALAB
ASTERA LABS, INC.
SALE10b5-1
10b5-1 plan
3,077$364.25$1.12M60,562Jun 3, 2026Jun 5, 2026 ↗View →
ALAB
ASTERA LABS, INC.
SALE10b5-1
10b5-1 plan
81$365.09$29.6K5,292Jun 3, 2026Jun 5, 2026 ↗View →
ALAB
ASTERA LABS, INC.
SALE10b5-1
10b5-1 plan
428$365.09$156.3K60,134Jun 3, 2026Jun 5, 2026 ↗View →
ALAB
ASTERA LABS, INC.
SALE10b5-1
10b5-1 plan
1,783$199.00$354.8K65,361May 7, 2026May 11, 2026 ↗View →
ALAB
ASTERA LABS, INC.
SALE10b5-1
10b5-1 plan
325$201.10$65.4K5,953May 7, 2026May 11, 2026 ↗View →
ALAB
ASTERA LABS, INC.
SALE10b5-1
10b5-1 plan
4,095$201.10$823.5K328,065May 7, 2026May 11, 2026 ↗View →
ALAB
ASTERA LABS, INC.
SALE10b5-1
10b5-1 plan
1,722$201.10$346.3K63,639May 7, 2026May 11, 2026 ↗View →
ALAB
ASTERA LABS, INC.
SALE10b5-1
10b5-1 plan
336$199.00$66.9K6,278May 7, 2026May 11, 2026 ↗View →
ALAB
ASTERA LABS, INC.
SALE10b5-1
10b5-1 plan
4,238$199.00$843.4K332,160May 7, 2026May 11, 2026 ↗View →
ALAB
ASTERA LABS, INC.
SALE10b5-1
10b5-1 plan
709$175.12$124.2K6,614Apr 20, 2026Apr 21, 2026 ↗View →
ALAB
ASTERA LABS, INC.
SALE10b5-1
10b5-1 plan
8,933$175.12$1.56M336,398Apr 20, 2026Apr 21, 2026 ↗View →
ALAB
ASTERA LABS, INC.
SALE10b5-1
10b5-1 plan
3,757$175.12$657.9K67,144Apr 20, 2026Apr 21, 2026 ↗View →
ALAB
ASTERA LABS, INC.
SALE10b5-1
10b5-1 plan
7,733$175.00$1.35M345,331Apr 17, 2026Apr 21, 2026 ↗View →
ALAB
ASTERA LABS, INC.
SALE10b5-1
10b5-1 plan
613$175.00$107.3K7,323Apr 17, 2026Apr 21, 2026 ↗View →
ALAB
ASTERA LABS, INC.
SALE10b5-1
10b5-1 plan
3,253$175.00$569.3K70,901Apr 17, 2026Apr 21, 2026 ↗View →
ALAB
ASTERA LABS, INC.
SALEGRANT
Gift
11,000——353,064Aug 13, 2025Aug 15, 2025 ↗View →
ALAB
ASTERA LABS, INC.
SALE
25,000$175.26$4.38M74,154Aug 8, 2025Aug 11, 2025 ↗View →
ALAB
ASTERA LABS, INC.
SALE
1,000$175.26$175.3K7,936Aug 8, 2025Aug 11, 2025 ↗View →
ALAB
ASTERA LABS, INC.
SALE
559$173.86$97.2K8,939Aug 7, 2025Aug 11, 2025 ↗View →
ALAB
ASTERA LABS, INC.
SALE
10,940$172.86$1.89M113,214Aug 7, 2025Aug 11, 2025 ↗View →
ALAB
ASTERA LABS, INC.
SALE
13,963$173.86$2.43M99,251Aug 7, 2025Aug 11, 2025 ↗View →
ALAB
ASTERA LABS, INC.
SALE
97$174.52$16.9K99,154Aug 7, 2025Aug 11, 2025 ↗View →
ALAB
ASTERA LABS, INC.
SALE
3$174.52$5248,936Aug 7, 2025Aug 11, 2025 ↗View →
ALAB
ASTERA LABS, INC.
SALE
438$172.86$75.7K9,498Aug 7, 2025Aug 11, 2025 ↗View →
ALAB
ASTERA LABS, INC.
PURCHASEGRANT
Stock grant
2,351——124,154Jun 8, 2025Jun 10, 2025 ↗View →
ALAB
ASTERA LABS, INC.
SALE
7,814$107.17$837.4K121,803Nov 26, 2024Nov 26, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
7,815$107.17$837.5K364,064Nov 26, 2024Nov 26, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
6,638$104.91$696.4K390,241Nov 22, 2024Nov 26, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
7,279$106.96$778.6K371,879Nov 22, 2024Nov 26, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
291$106.96$31.1K3,767Nov 22, 2024Nov 26, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
291$106.96$31.1K3,765Nov 22, 2024Nov 26, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
11,083$105.80$1.17M379,158Nov 22, 2024Nov 26, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
266$104.91$27.9K4,499Nov 22, 2024Nov 26, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
443$105.80$46.9K4,058Nov 22, 2024Nov 26, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
443$105.80$46.9K4,056Nov 22, 2024Nov 26, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
266$104.91$27.9K4,501Nov 22, 2024Nov 26, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
6,148$95.30$585.9K0Nov 19, 2024Nov 20, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
197,297$90.51$17.86M6,148Nov 18, 2024Nov 20, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
3,051$96.56$294.6K397,378Nov 11, 2024Nov 13, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
1,124$94.04$105.7K401,970Nov 11, 2024Nov 13, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
1,541$95.54$147.2K400,429Nov 11, 2024Nov 13, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
7,583$92.13$698.6K403,094Nov 11, 2024Nov 13, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
36,202$91.34$3.31M410,677Nov 11, 2024Nov 13, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
499$97.35$48.6K396,879Nov 11, 2024Nov 13, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
40,863$90.00$3.68M129,617Nov 6, 2024Nov 8, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
6,567$90.00$591.0K203,445Nov 6, 2024Nov 8, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
5,628$88.06$495.6K173,989Nov 6, 2024Nov 8, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
3,509$88.87$311.9K170,480Nov 6, 2024Nov 8, 2024 ↗View →
ALAB
ASTERA LABS, INC.
PURCHASE
4,765——4,765Oct 4, 2024Oct 8, 2024 ↗View →
ALAB
ASTERA LABS, INC.
PURCHASE
4,767——4,767Oct 4, 2024Oct 8, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
23,827——0Oct 4, 2024Oct 8, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALEGRANT
Gift
0——9,936Sep 30, 2024Oct 2, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
14,957,606——0Mar 22, 2024Mar 22, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
6,568——0Mar 22, 2024Mar 22, 2024 ↗View →
ALAB
ASTERA LABS, INC.
PURCHASE
16,503——16,503Mar 22, 2024Mar 22, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
65——0Mar 22, 2024Mar 22, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
9,672——0Mar 22, 2024Mar 22, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
1,010——0Mar 22, 2024Mar 22, 2024 ↗View →
ALAB
ASTERA LABS, INC.
PURCHASE
16,761,590——16,761,590Mar 22, 2024Mar 22, 2024 ↗View →
ALAB
ASTERA LABS, INC.
PURCHASE
23,827——23,827Mar 22, 2024Mar 22, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
8,860——0Mar 22, 2024Mar 22, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
8,861——0Mar 22, 2024Mar 22, 2024 ↗View →
ALAB
ASTERA LABS, INC.
PURCHASE
9,936——9,936Mar 22, 2024Mar 22, 2024 ↗View →
ALAB
ASTERA LABS, INC.
PURCHASE
179,617——179,617Mar 22, 2024Mar 22, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
203,445——0Mar 22, 2024Mar 22, 2024 ↗View →
ALAB
ASTERA LABS, INC.
PURCHASE
210,013——210,013Mar 22, 2024Mar 22, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
1,316,256——0Mar 22, 2024Mar 22, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
23,827——0Mar 22, 2024Mar 22, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
179,617——0Mar 22, 2024Mar 22, 2024 ↗View →
ALAB
ASTERA LABS, INC.
SALE
478,056——0Mar 22, 2024Mar 22, 2024 ↗View →
SNOW
SNOWFLAKE INC.
SALE
4,163,543——0Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
SALE
727,185——0Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
SALE
2,726,595——0Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
SALE
7,464,467——0Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
SALE
69,370——0Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
SALE
2,170,228——0Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
SALE
2,121,351——0Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
SALE
7,822,231——0Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
PURCHASE
2,726,595——22,221,088Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
PURCHASE
2,121,351——26,512,667Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
PURCHASE
2,170,228——24,391,316Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
PURCHASE
727,185——27,239,852Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
PURCHASE
7,822,231——7,866,483Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
PURCHASE
7,464,467——15,330,950Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
PURCHASE
69,370——27,309,222Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
PURCHASE
4,163,543——19,494,493Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
PURCHASE
15,800——15,800Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
PURCHASE
27,838——1,015,678Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
PURCHASE
74,980——878,834Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
SALE
168,740——0Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
SALE
2,772——0Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
SALE
62,358——0Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
SALE
46,648——0Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
SALE
27,838——0Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
PURCHASE
168,740——803,854Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
PURCHASE
2,772——1,018,450Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
SALE
317,522——0Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
SALE
74,980——0Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
SALE
15,800——0Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
PURCHASE
2,204——26,986Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
PURCHASE
62,358——941,192Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
PURCHASE
317,522——318,136Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
SALE
316,978——0Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
PURCHASE
316,978——635,114Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
PURCHASE
46,648——987,840Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
SALE
2,204——0Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
SALE
8,982——0Sep 18, 2020Sep 22, 2020 ↗View →
SNOW
SNOWFLAKE INC.
PURCHASE
8,982——24,782Sep 18, 2020Sep 22, 2020 ↗View →
Other insiders · ALAB
Loading peer insiders…
About this filer
CIK 0001484394
ROLE
Director
PRIMARY
ALAB
COMPANIES
2
ACTIVE SINCE
Sep 2020
MARKETPEEL · /INSIDER/0001484394DATA · 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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