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Insider Trading Intelligence
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RB

Roy D. Baynes

ATRA
DIRECTOR · ATARA BIOTHERAPEUTICS, INC. · CIK 0001680739
FILING MIX · LIFETIME63%/37%
BUYS
72
SELLS
42
TOTAL VALUE
$14.47M
COMPANIES
6
ACTIVE SINCE
Jun 2020
HOLDINGS NOW
259,429
AVG SELL PX
$82.18
TRADE KIND
SHOWING 114 / 114
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
22 backtested trades · 8 horizons · 44 pending
Forward-return performance of every backtestable P/S trade by Roy D. Baynes, 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
7d22+22.73%+5.65%+2.28%+3.36%+2.29%—
14d22+18.18%+9.35%+3.25%+6.77%+5.89%—
30d22+9.09%+8.94%+3.60%+6.08%+3.52%—
60d22+4.55%+11.36%+1.97%+9.39%+7.53%—
90d22(5 pending)+58.82%+5.10%+2.81%+2.29%-6.30%—
180d22(5 pending)+58.82%-1.71%+7.82%-9.53%-25.18%—
1y22(13 pending)+0.00%+48.71%+17.17%+31.54%+24.42%—
2y22(21 pending)+100.00%-1.34%+27.06%-28.40%-28.40%—
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
ATRA · 43,500 shares · as of Jun 23, 2022
010,87521,75032,62543,50020212022SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
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 · 72 buys / 42 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
1,571——20,083Jun 26, 2026Jun 30, 2026 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
75——20,158Jun 26, 2026Jun 30, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
4,500$50.00$225.0K41,500Jun 12, 2026Jun 16, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
PURCHASE
4,500$21.38$96.2K46,000Jun 12, 2026Jun 16, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
SALE
4,500——0Jun 12, 2026Jun 16, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
4,000——41,500May 19, 2026May 21, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
12,000——12,000May 19, 2026May 21, 2026 ↗View →
NRIX
NURIX THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
31,250——31,250May 15, 2026May 15, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
PURCHASE
4,500$18.27$82.2K42,000May 5, 2026May 6, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
SALE
4,500——0May 5, 2026May 6, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
4,500$46.65$209.9K37,500May 5, 2026May 6, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
PURCHASE
9,750$6.82$66.5K47,250May 1, 2026May 4, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
9,750$44.22$431.1K37,500May 1, 2026May 4, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
SALE
9,750——9,750May 1, 2026May 4, 2026 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
83——18,512Apr 24, 2026Apr 28, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
26,000$41.07$1.07M44,250Apr 14, 2026Apr 16, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
6,750$42.12$284.3K37,500Apr 14, 2026Apr 16, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
PURCHASE
9,000$15.43$138.9K54,500Apr 14, 2026Apr 16, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
SALE
9,000——0Apr 14, 2026Apr 16, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
SALE
8,000——0Apr 14, 2026Apr 16, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
SALE
4,500——4,500Apr 14, 2026Apr 16, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
PURCHASE
6,750$17.11$115.5K70,250Apr 14, 2026Apr 16, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
PURCHASE
8,000$17.94$143.5K45,500Apr 14, 2026Apr 16, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
SALE
6,750——6,750Apr 14, 2026Apr 16, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
PURCHASE
4,500$18.27$82.2K59,000Apr 14, 2026Apr 16, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
PURCHASE
4,500$21.38$96.2K63,500Apr 14, 2026Apr 16, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
10,000$33.00$330.0K37,500Apr 6, 2026Apr 7, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
PURCHASE
10,000$26.52$265.2K47,500Apr 6, 2026Apr 7, 2026 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
SALE
10,000——0Apr 6, 2026Apr 7, 2026 ↗View →
EIKN
EIKON THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
134,088——134,088Mar 2, 2026Mar 4, 2026 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
70——18,429Jan 30, 2026Feb 3, 2026 ↗View →
NTRA
NATERA, INC.
SALE
7,068——0Nov 20, 2025Nov 21, 2025 ↗View →
NTRA
NATERA, INC.
SALE10b5-1
10b5-1 plan
1,900$223.90$425.4K20,243Nov 20, 2025Nov 21, 2025 ↗View →
NTRA
NATERA, INC.
PURCHASE
7,068$41.19$291.1K26,027Nov 20, 2025Nov 21, 2025 ↗View →
NTRA
NATERA, INC.
PURCHASE
600$40.93$24.6K18,959Nov 20, 2025Nov 21, 2025 ↗View →
NTRA
NATERA, INC.
SALE10b5-1
10b5-1 plan
1,800$222.90$401.2K22,143Nov 20, 2025Nov 21, 2025 ↗View →
NTRA
NATERA, INC.
SALE10b5-1
10b5-1 plan
900$221.81$199.6K23,943Nov 20, 2025Nov 21, 2025 ↗View →
NTRA
NATERA, INC.
SALE10b5-1
10b5-1 plan
1,884$224.89$423.7K18,359Nov 20, 2025Nov 21, 2025 ↗View →
NTRA
NATERA, INC.
SALE10b5-1
10b5-1 plan
1,184$220.14$260.6K24,843Nov 20, 2025Nov 21, 2025 ↗View →
NTRA
NATERA, INC.
SALE
600——0Nov 20, 2025Nov 21, 2025 ↗View →
NTRA
NATERA, INC.
SALE10b5-1
10b5-1 plan
1,250$213.47$266.8K22,221Nov 19, 2025Nov 21, 2025 ↗View →
NTRA
NATERA, INC.
SALE10b5-1
10b5-1 plan
2,135$216.07$461.3K18,359Nov 19, 2025Nov 21, 2025 ↗View →
NTRA
NATERA, INC.
PURCHASE
5,112$40.93$209.2K23,471Nov 19, 2025Nov 21, 2025 ↗View →
NTRA
NATERA, INC.
SALE
5,112——600Nov 19, 2025Nov 21, 2025 ↗View →
NTRA
NATERA, INC.
SALE10b5-1
10b5-1 plan
1,727$214.79$370.9K20,494Nov 19, 2025Nov 21, 2025 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
93——18,359Oct 31, 2025Nov 4, 2025 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
108——18,266Jul 25, 2025Jul 29, 2025 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
2,143——18,158Jun 27, 2025Jul 1, 2025 ↗View →
AARD
AARDVARK THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
30,508——30,508Jun 11, 2025Jun 13, 2025 ↗View →
NRIX
NURIX THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
25,000——25,000May 19, 2025May 19, 2025 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
6,500——37,500May 15, 2025May 16, 2025 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
19,500——19,500May 15, 2025May 16, 2025 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
116——16,015Apr 25, 2025Apr 29, 2025 ↗View →
NRIX
NURIX THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
50,000——50,000Mar 11, 2025Mar 13, 2025 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
PURCHASE
10,000$17.44$174.4K41,000Feb 6, 2025Feb 10, 2025 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
SALE
10,000——0Feb 6, 2025Feb 10, 2025 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
10,000$22.00$220.0K31,000Feb 6, 2025Feb 10, 2025 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
92——15,899Jan 31, 2025Feb 4, 2025 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
16,000$20.00$320.0K31,000Jan 23, 2025Jan 23, 2025 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
PURCHASE
16,000$17.50$280.0K47,000Jan 23, 2025Jan 23, 2025 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
SALE
16,000——0Jan 23, 2025Jan 23, 2025 ↗View →
NTRA
NATERA, INC.
SALE10b5-1
10b5-1 plan
2,106$148.74$313.2K17,790Nov 15, 2024Nov 15, 2024 ↗View →
NTRA
NATERA, INC.
SALE
22,000——0Nov 15, 2024Nov 15, 2024 ↗View →
NTRA
NATERA, INC.
SALE10b5-1
10b5-1 plan
1,983$149.98$297.4K15,807Nov 15, 2024Nov 15, 2024 ↗View →
NTRA
NATERA, INC.
SALE10b5-1
10b5-1 plan
9,467$147.31$1.39M19,896Nov 15, 2024Nov 15, 2024 ↗View →
NTRA
NATERA, INC.
SALE10b5-1
10b5-1 plan
1,770$146.26$258.9K29,363Nov 15, 2024Nov 15, 2024 ↗View →
NTRA
NATERA, INC.
PURCHASE
22,000$22.83$502.3K37,807Nov 15, 2024Nov 15, 2024 ↗View →
NTRA
NATERA, INC.
SALE10b5-1
10b5-1 plan
16,404$145.21$2.38M31,133Nov 15, 2024Nov 15, 2024 ↗View →
NTRA
NATERA, INC.
SALE
15,230——0Nov 15, 2024Nov 15, 2024 ↗View →
NTRA
NATERA, INC.
PURCHASE
15,230$24.42$371.9K53,037Nov 15, 2024Nov 15, 2024 ↗View →
NTRA
NATERA, INC.
SALE10b5-1
10b5-1 plan
5,500$144.26$793.4K47,537Nov 15, 2024Nov 15, 2024 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
124——15,807Oct 25, 2024Oct 29, 2024 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
143——15,683Jul 26, 2024Jul 30, 2024 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
2,964——15,540Jun 28, 2024Jul 2, 2024 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
6,500——31,000May 8, 2024May 10, 2024 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
19,500——19,500May 8, 2024May 10, 2024 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
169——12,576Apr 26, 2024Apr 30, 2024 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
215$63.79$13.7K12,407Jan 26, 2024Jan 30, 2024 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
322$42.60$13.7K12,192Oct 27, 2023Oct 31, 2023 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
264$48.48$12.8K11,870Jul 28, 2023Aug 1, 2023 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
4,255——4,255Jun 30, 2023Jul 5, 2023 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
2,750——11,606Jun 30, 2023Jul 5, 2023 ↗View →
NTRA
NATERA, INC.
SALE
3,534——0May 25, 2023May 26, 2023 ↗View →
NTRA
NATERA, INC.
PURCHASE
3,534——8,856May 25, 2023May 26, 2023 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
13,500——13,500May 17, 2023May 19, 2023 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
4,500——24,500May 17, 2023May 19, 2023 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
228$54.73$12.5K5,322Apr 14, 2023Apr 18, 2023 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
312$40.01$12.5K5,094Jan 13, 2023Jan 18, 2023 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
275$45.42$12.5K4,782Oct 14, 2022Oct 18, 2022 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
344$36.31$12.5K344Jul 8, 2022Jul 12, 2022 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
344——4,507Jul 8, 2022Sep 2, 2022 ↗View →
ATRA
ATARA BIOTHERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
31,500——31,500Jun 23, 2022Jun 27, 2022 ↗View →
ATRA
ATARA BIOTHERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
20,500——43,500Jun 23, 2022Jun 27, 2022 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
3,534——3,534May 27, 2022Jun 1, 2022 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
7,068——7,068May 27, 2022Jun 1, 2022 ↗View →
NTRA
NATERA, INC.
PURCHASE
1,307——4,163May 25, 2022May 27, 2022 ↗View →
NTRA
NATERA, INC.
SALE
1,307——0May 25, 2022May 27, 2022 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
3,000——20,000May 11, 2022May 12, 2022 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
9,000——9,000May 11, 2022May 12, 2022 ↗View →
ATRA
ATARA BIOTHERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
11,000——23,000Jun 8, 2021Jun 9, 2021 ↗View →
ATRA
ATARA BIOTHERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
17,500——17,500Jun 8, 2021Jun 9, 2021 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
2,614——2,614May 28, 2021Jun 2, 2021 ↗View →
NTRA
NATERA, INC.
SALE
2,856——0May 28, 2021Jun 2, 2021 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
1,307——1,307May 28, 2021Jun 2, 2021 ↗View →
NTRA
NATERA, INC.
PURCHASE
2,856——2,856May 28, 2021Jun 2, 2021 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
3,000——17,000May 14, 2021May 18, 2021 ↗View →
TVTX
TRAVERE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
9,000——9,000May 14, 2021May 18, 2021 ↗View →
NTRA
NATERA, INC.
SALE
1,300——15,230Aug 7, 2020Aug 11, 2020 ↗View →
NTRA
NATERA, INC.
SALE
1,300$53.47$69.5K0Aug 7, 2020Aug 11, 2020 ↗View →
NTRA
NATERA, INC.
PURCHASE
1,300$24.42$31.7K1,300Aug 7, 2020Aug 11, 2020 ↗View →
ATRA
ATARA BIOTHERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
8,000——12,000Jun 16, 2020Jun 17, 2020 ↗View →
ATRA
ATARA BIOTHERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
24,500——24,500Jun 16, 2020Jun 17, 2020 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
2,856——2,856Jun 12, 2020Jun 16, 2020 ↗View →
NTRA
NATERA, INC.
PURCHASEGRANT
Stock grant
5,712——5,712Jun 12, 2020Jun 16, 2020 ↗View →
Other insiders · ATRA
Loading peer insiders…
About this filer
CIK 0001680739
ROLE
Director
PRIMARY
ATRA
COMPANIES
6
ACTIVE SINCE
Jun 2020
MARKETPEEL · /INSIDER/0001680739DATA · 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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