SPRINGER TIMOTHY A
Director · Ten-percent owner · TECX, RNAC
As of 2026-09-16, SPRINGER TIMOTHY A has 39 Form 4 transactions on record across 2 companies — 3 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Reconstructed holdings
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2025-04-11 | TECX | Purchase | 53,706 @ $16.31 | $876K | +3.7% of holding | 1,503,358 | Form 4 |
| 2025-04-11 | RNAC | Purchase | 36,338 @ $10.77 | $391K | +5.9% of holding | 656,513 | Form 4 |
| 2025-04-11 | TECX | Purchase | 9,478 @ $16.31 | $155K | +0.2% of holding | 4,334,846 | Form 4 |
| 2025-04-11 | RNAC | Purchase | 6,412 @ $10.77 | $69K | +0.1% of holding | 8,643,685 | Form 4 |
| 2025-04-10 | TECX | Purchase | 45,858 @ $16.73 | $767K | +3.3% of holding | 1,449,652 | Form 4 |
| 2025-04-10 | RNAC | Purchase | 45,144 @ $10.43 | $471K | +7.9% of holding | 616,724 | Form 4 |
| 2025-04-10 | TECX | Purchase | 8,092 @ $16.73 | $135K | +0.2% of holding | 4,325,368 | Form 4 |
| 2025-04-10 | RNAC | Purchase | 7,966 @ $10.43 | $83K | +0.1% of holding | 8,636,664 | Form 4 |
| 2025-04-10 | RNAC | Purchase | 3,451 @ $10.92 | $38K | +0.6% of holding | 620,175 | Form 4 |
| 2025-04-10 | RNAC | Purchase | 609 @ $10.92 | $7K | +0.0% of holding | 8,637,273 | Form 4 |
| 2025-04-09 | RNAC | Purchase | 41,604 @ $9.43 | $392K | +7.9% of holding | 571,402 | Form 4 |
| 2025-04-09 | TECX | Purchase | 16,215 @ $14.62 | $237K | +1.2% of holding | 1,398,938 | Form 4 |
| 2025-04-09 | TECX | Purchase | 4,856 @ $15.23 | $74K | +0.3% of holding | 1,403,794 | Form 4 |
| 2025-04-09 | RNAC | Purchase | 7,342 @ $9.43 | $69K | +0.1% of holding | 8,628,667 | Form 4 |
| 2025-04-09 | TECX | Purchase | 2,861 @ $14.62 | $42K | +0.1% of holding | 4,316,419 | Form 4 |
| 2025-04-09 | TECX | Purchase | 857 @ $15.23 | $13K | +0.0% of holding | 4,317,276 | Form 4 |
| 2025-04-09 | RNAC | Purchase | 178 @ $9.95 | $2K | +0.0% of holding | 571,580 | Form 4 |
| 2025-04-09 | RNAC | Purchase | 31 @ $9.95 | $308 | +0.0% of holding | 8,628,698 | Form 4 |
| 2025-04-07 | TECX | Purchase | 412,500 @ $17.10 | $7.1M | +42.5% of holding | 1,382,723 | Form 4 |
| 2025-04-07 | TECX | Purchase | 87,500 @ $17.10 | $1.5M | +2.1% of holding | 4,313,558 | Form 4 |
| 2025-03-20 | RNAC | Purchase | 54,889 @ $15.59 | $856K | +0.6% of holding | 8,621,325 | Form 4 |
| 2025-03-19 | RNAC | Purchase | 20,234 @ $14.97 | $303K | +0.2% of holding | 8,566,436 | Form 4 |
| 2025-03-18 | RNAC | Purchase | 14,740 @ $14.42 | $213K | +0.2% of holding | 8,546,202 | Form 4 |
| 2025-02-05 | TECX | Purchase | 660,000 @ $50.00 | $33.0M | +212.8% of holding | 970,223 | Form 4 |
| 2025-02-05 | TECX | Purchase | 129,294 @ $54.14 | $7.0M | +3.2% of holding | 4,226,058 | Form 4 |
| 2025-01-14 | RNAC | Purchase | 4,022 @ $18.00 | $72K | +0.0% of holding | 8,531,462 | Form 4 |
| 2025-01-13 | RNAC | Purchase | 8,983 @ $17.78 | $160K | +0.1% of holding | 8,527,440 | Form 4 |
| 2025-01-13 | RNAC | Purchase | 7,962 @ $16.86 | $134K | +0.1% of holding | 8,518,457 | Form 4 |
| 2024-12-23 | RNAC | Purchase | 5,181 @ $19.00 | $98K | +0.1% of holding | 8,507,895 | Form 4 |
| 2024-12-20 | RNAC | Purchase | 21,800 @ $18.94 | $413K | +0.3% of holding | 8,502,714 | Form 4 |
| 2024-12-19 | RNAC | Purchase | 11,303 @ $17.39 | $197K | +0.1% of holding | 8,467,009 | Form 4 |
| 2024-12-19 | RNAC | Purchase | 10,529 @ $18.35 | $193K | +0.1% of holding | 8,477,538 | Form 4 |
| 2024-12-19 | RNAC | Purchase | 3,376 @ $18.93 | $64K | +0.0% of holding | 8,480,914 | Form 4 |
6 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-06-09 | TECX | Award / grant | 10,200 | 10,200 | Form 4 |
| 2026-01-02 | RNAC | Award / grant | 7,800 | 7,800 | Form 4 |
| 2026-01-02 | RNAC | Award / grant | 2,600 | 8,646,285 | Form 4 |
| 2025-06-09 | TECX | Award / grant | 10,200 | 10,200 | Form 4 |
| 2025-01-02 | RNAC | Award / grant | 2,600 | 8,510,495 | Form 4 |
| 2025-01-02 | RNAC | Award / grant | 7,800 | 7,800 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.